Poisson Equation example of NeuralPDE.jl throws hash error

I am new to the PINN topic and therefore I just wanted to study through the tutorial of NeuralPDE.jl. I tried several examples from the tutorial. Sadly none of it works and I get the same error for each example. I am using Julia Version 1.7.2.
For example, the error I get for the Poisson equation is:


ERROR: MethodError: no method matching hash(::Sym{Real, Base.ImmutableDict{DataType, Any}}, ::UInt64)
Closest candidates are:
  hash(::Union{SymbolicUtils.Add, SymbolicUtils.Mul}, ::UInt64) at C:\Users\K\.julia\packages\SymbolicUtils\v2ZkM\src\types.jl:1119
  hash(::Sym, ::UInt32) at C:\Users\K\.julia\packages\SymbolicUtils\v2ZkM\src\types.jl:152
  hash(::PolyForm, ::UInt64) at C:\Users\K\.julia\packages\SymbolicUtils\v2ZkM\src\polyform.jl:43
  ...
Stacktrace:
  [1] hash(D::Differential, u::UInt32)
    @ Symbolics C:\Users\K\.julia\packages\Symbolics\1OrKJ\src\diff.jl:51
  [2] hash(x::Function)
    @ Base .\hashing.jl:20
  [3] hashindex
    @ .\dict.jl:169 [inlined]
  [4] ht_keyindex
    @ .\dict.jl:284 [inlined]
  [5] in(key::Function, v::Base.KeySet{Symbol, Dict{Symbol, Int32}})
    @ Base .\dict.jl:553
  [6] _transform_expression(ex::Expr, indvars::Vector{Symbol}, depvars::Vector{Symbol}, dict_indvars::Dict{Symbol, Int32}, dict_depvars::Dict{Symbol, Int32}, dict_depvar_input::Dict{Symbol, Vector{Symbol}}, chain::FastChain{Tuple{FastDense{typeof(sigmoid_fast), DiffEqFlux.var"#initial_params#94"{Vector{Float32}}, Nothing}, FastDense{typeof(sigmoid_fast), DiffEqFlux.var"#initial_params#94"{Vector{Float32}}, Nothing}, FastDense{typeof(identity), DiffEqFlux.var"#initial_params#94"{Vector{Float32}}, Nothing}}}, eltypeθ::Type, strategy::GridTraining, phi::NeuralPDE.var"#280#282"{FastChain{Tuple{FastDense{typeof(sigmoid_fast), DiffEqFlux.var"#initial_params#94"{Vector{Float32}}, Nothing}, FastDense{typeof(sigmoid_fast), DiffEqFlux.var"#initial_params#94"{Vector{Float32}}, Nothing}, FastDense{typeof(identity), DiffEqFlux.var"#initial_params#94"{Vector{Float32}}, Nothing}}}, UnionAll}, derivative_::NeuralPDE.var"#286#287", integral::NeuralPDE.var"#288#295"{GridTraining, NeuralPDE.var"#288#289#296"{NeuralPDE.var"#286#287"}, Dict{Symbol, Int32}, Dict{Symbol, Int32}, Vector{Symbol}, Vector{Symbol}}, initθ::Vector{Float64}; is_integral::Bool, dict_transformation_vars::Nothing, transformation_vars::Nothing)
    @ NeuralPDE C:\Users\K\.julia\packages\NeuralPDE\j8LaF\src\pinns_pde_solve.jl:247
  [7] _transform_expression(ex::Expr, indvars::Vector{Symbol}, depvars::Vector{Symbol}, dict_indvars::Dict{Symbol, Int32}, dict_depvars::Dict{Symbol, Int32}, dict_depvar_input::Dict{Symbol, Vector{Symbol}}, chain::FastChain{Tuple{FastDense{typeof(sigmoid_fast), DiffEqFlux.var"#initial_params#94"{Vector{Float32}}, Nothing}, FastDense{typeof(sigmoid_fast), DiffEqFlux.var"#initial_params#94"{Vector{Float32}}, Nothing}, FastDense{typeof(identity), DiffEqFlux.var"#initial_params#94"{Vector{Float32}}, Nothing}}}, eltypeθ::Type, strategy::GridTraining, phi::NeuralPDE.var"#280#282"{FastChain{Tuple{FastDense{typeof(sigmoid_fast), DiffEqFlux.var"#initial_params#94"{Vector{Float32}}, Nothing}, FastDense{typeof(sigmoid_fast), DiffEqFlux.var"#initial_params#94"{Vector{Float32}}, Nothing}, FastDense{typeof(identity), DiffEqFlux.var"#initial_params#94"{Vector{Float32}}, Nothing}}}, UnionAll}, derivative_::NeuralPDE.var"#286#287", integral::NeuralPDE.var"#288#295"{GridTraining, NeuralPDE.var"#288#289#296"{NeuralPDE.var"#286#287"}, Dict{Symbol, Int32}, Dict{Symbol, Int32}, Vector{Symbol}, Vector{Symbol}}, initθ::Vector{Float64}; is_integral::Bool, dict_transformation_vars::Nothing, transformation_vars::Nothing)
    @ NeuralPDE C:\Users\K\.julia\packages\NeuralPDE\j8LaF\src\pinns_pde_solve.jl:360
  [8] transform_expression(ex::Expr, indvars::Vector{Symbol}, depvars::Vector{Symbol}, dict_indvars::Dict{Symbol, Int32}, dict_depvars::Dict{Symbol, Int32}, dict_depvar_input::Dict{Symbol, Vector{Symbol}}, chain::FastChain{Tuple{FastDense{typeof(sigmoid_fast), DiffEqFlux.var"#initial_params#94"{Vector{Float32}}, Nothing}, FastDense{typeof(sigmoid_fast), DiffEqFlux.var"#initial_params#94"{Vector{Float32}}, Nothing}, FastDense{typeof(identity), DiffEqFlux.var"#initial_params#94"{Vector{Float32}}, Nothing}}}, eltypeθ::Type, strategy::GridTraining, phi::NeuralPDE.var"#280#282"{FastChain{Tuple{FastDense{typeof(sigmoid_fast), DiffEqFlux.var"#initial_params#94"{Vector{Float32}}, Nothing}, FastDense{typeof(sigmoid_fast), DiffEqFlux.var"#initial_params#94"{Vector{Float32}}, Nothing}, FastDense{typeof(identity), DiffEqFlux.var"#initial_params#94"{Vector{Float32}}, Nothing}}}, UnionAll}, derivative::NeuralPDE.var"#286#287", integral::NeuralPDE.var"#288#295"{GridTraining, NeuralPDE.var"#288#289#296"{NeuralPDE.var"#286#287"}, Dict{Symbol, Int32}, Dict{Symbol, Int32}, Vector{Symbol}, Vector{Symbol}}, initθ::Vector{Float64}; is_integral::Bool, dict_transformation_vars::Nothing, transformation_vars::Nothing)
    @ NeuralPDE C:\Users\K\.julia\packages\NeuralPDE\j8LaF\src\pinns_pde_solve.jl:205
  [9] transform_expression(ex::Expr, indvars::Vector{Symbol}, depvars::Vector{Symbol}, dict_indvars::Dict{Symbol, Int32}, dict_depvars::Dict{Symbol, Int32}, dict_depvar_input::Dict{Symbol, Vector{Symbol}}, chain::Function, eltypeθ::Type, strategy::GridTraining, phi::NeuralPDE.var"#280#282"{FastChain{Tuple{FastDense{typeof(sigmoid_fast), DiffEqFlux.var"#initial_params#94"{Vector{Float32}}, Nothing}, FastDense{typeof(sigmoid_fast), DiffEqFlux.var"#initial_params#94"{Vector{Float32}}, Nothing}, FastDense{typeof(identity), DiffEqFlux.var"#initial_params#94"{Vector{Float32}}, Nothing}}}, UnionAll}, derivative::NeuralPDE.var"#286#287", integral::NeuralPDE.var"#288#295"{GridTraining, NeuralPDE.var"#288#289#296"{NeuralPDE.var"#286#287"}, Dict{Symbol, Int32}, Dict{Symbol, Int32}, Vector{Symbol}, Vector{Symbol}}, initθ::Vector{Float64})
    @ NeuralPDE C:\Users\K\.julia\packages\NeuralPDE\j8LaF\src\pinns_pde_solve.jl:204
 [10] parse_equation(eq::Equation, indvars::Vector{Symbol}, depvars::Vector{Symbol}, dict_indvars::Dict{Symbol, Int32}, dict_depvars::Dict{Symbol, Int32}, dict_depvar_input::Dict{Symbol, Vector{Symbol}}, chain::Function, eltypeθ::Type, strategy::GridTraining, phi::NeuralPDE.var"#280#282"{FastChain{Tuple{FastDense{typeof(sigmoid_fast), DiffEqFlux.var"#initial_params#94"{Vector{Float32}}, Nothing}, FastDense{typeof(sigmoid_fast), DiffEqFlux.var"#initial_params#94"{Vector{Float32}}, Nothing}, FastDense{typeof(identity), DiffEqFlux.var"#initial_params#94"{Vector{Float32}}, Nothing}}}, UnionAll}, derivative::NeuralPDE.var"#286#287", integral::NeuralPDE.var"#288#295"{GridTraining, NeuralPDE.var"#288#289#296"{NeuralPDE.var"#286#287"}, Dict{Symbol, Int32}, Dict{Symbol, Int32}, Vector{Symbol}, Vector{Symbol}}, initθ::Vector{Float64})
    @ NeuralPDE C:\Users\K\.julia\packages\NeuralPDE\j8LaF\src\pinns_pde_solve.jl:402
 [11] build_symbolic_loss_function(eqs::Equation, indvars::Vector{Symbol}, depvars::Vector{Symbol}, dict_indvars::Dict{Symbol, Int32}, dict_depvars::Dict{Symbol, Int32}, dict_depvar_input::Dict{Symbol, Vector{Symbol}}, phi::NeuralPDE.var"#280#282"{FastChain{Tuple{FastDense{typeof(sigmoid_fast), DiffEqFlux.var"#initial_params#94"{Vector{Float32}}, Nothing}, FastDense{typeof(sigmoid_fast), DiffEqFlux.var"#initial_params#94"{Vector{Float32}}, Nothing}, FastDense{typeof(identity), DiffEqFlux.var"#initial_params#94"{Vector{Float32}}, Nothing}}}, UnionAll}, derivative::NeuralPDE.var"#286#287", integral::NeuralPDE.var"#288#295"{GridTraining, NeuralPDE.var"#288#289#296"{NeuralPDE.var"#286#287"}, Dict{Symbol, Int32}, Dict{Symbol, Int32}, Vector{Symbol}, Vector{Symbol}}, chain::FastChain{Tuple{FastDense{typeof(sigmoid_fast), DiffEqFlux.var"#initial_params#94"{Vector{Float32}}, Nothing}, FastDense{typeof(sigmoid_fast), DiffEqFlux.var"#initial_params#94"{Vector{Float32}}, Nothing}, FastDense{typeof(identity), DiffEqFlux.var"#initial_params#94"{Vector{Float32}}, Nothing}}}, initθ::Vector{Float64}, strategy::GridTraining; eq_params::SciMLBase.NullParameters, param_estim::Bool, default_p::Nothing, bc_indvars::Vector{Any}, integrand::Nothing, dict_transformation_vars::Nothing, transformation_vars::Nothing, integrating_depvars::Vector{Symbol})
    @ NeuralPDE C:\Users\K\.julia\packages\NeuralPDE\j8LaF\src\pinns_pde_solve.jl:509
 [12] #build_loss_function#184
    @ C:\Users\K\.julia\packages\NeuralPDE\j8LaF\src\pinns_pde_solve.jl:630 [inlined]
 [13] #346
    @ .\none:0 [inlined]
 [14] iterate
    @ .\generator.jl:47 [inlined]
 [15] collect(itr::Base.Generator{Base.Iterators.Zip{Tuple{Vector{Equation}, Vector{Vector{Any}}, Vector{Vector{Symbol}}}}, NeuralPDE.var"#346#362"{NeuralPDE.var"#288#295"{GridTraining, NeuralPDE.var"#288#289#296"{NeuralPDE.var"#286#287"}, Dict{Symbol, Int32}, Dict{Symbol, Int32}, Vector{Symbol}, Vector{Symbol}}, GridTraining, NeuralPDE.var"#286#287", NeuralPDE.var"#280#282"{FastChain{Tuple{FastDense{typeof(sigmoid_fast), DiffEqFlux.var"#initial_params#94"{Vector{Float32}}, Nothing}, FastDense{typeof(sigmoid_fast), DiffEqFlux.var"#initial_params#94"{Vector{Float32}}, Nothing}, FastDense{typeof(identity), DiffEqFlux.var"#initial_params#94"{Vector{Float32}}, Nothing}}}, UnionAll}, Vector{Float64}, FastChain{Tuple{FastDense{typeof(sigmoid_fast), DiffEqFlux.var"#initial_params#94"{Vector{Float32}}, Nothing}, FastDense{typeof(sigmoid_fast), DiffEqFlux.var"#initial_params#94"{Vector{Float32}}, Nothing}, FastDense{typeof(identity), DiffEqFlux.var"#initial_params#94"{Vector{Float32}}, Nothing}}}, Dict{Symbol, Vector{Symbol}}, Dict{Symbol, Int32}, Dict{Symbol, Int32}, Vector{Symbol}, Vector{Symbol}, Bool, Nothing, SciMLBase.NullParameters}})    @ Base .\array.jl:724
 [16] discretize(pde_system::PDESystem, discretization::PhysicsInformedNN{true, FastChain{Tuple{FastDense{typeof(sigmoid_fast), DiffEqFlux.var"#initial_params#94"{Vector{Float32}}, Nothing}, FastDense{typeof(sigmoid_fast), DiffEqFlux.var"#initial_params#94"{Vector{Float32}}, Nothing}, FastDense{typeof(identity), DiffEqFlux.var"#initial_params#94"{Vector{Float32}}, Nothing}}}, GridTraining, Vector{Float64}, NeuralPDE.var"#280#282"{FastChain{Tuple{FastDense{typeof(sigmoid_fast), DiffEqFlux.var"#initial_params#94"{Vector{Float32}}, Nothing}, FastDense{typeof(sigmoid_fast), DiffEqFlux.var"#initial_params#94"{Vector{Float32}}, Nothing}, FastDense{typeof(identity), DiffEqFlux.var"#initial_params#94"{Vector{Float32}}, Nothing}}}, UnionAll}, NeuralPDE.var"#286#287", Bool, Nothing, Base.Pairs{Symbol, Union{}, Tuple{}, NamedTuple{(), Tuple{}}}})
    @ NeuralPDE C:\Users\K\.julia\packages\NeuralPDE\j8LaF\src\pinns_pde_solve.jl:1133
 [17] top-level scope
    @ c:\Users\K\Desktop\PINN\test.jl:30

Is there anything to fix this issue?

Works for me - probably you’re using different package versions than the one the docs are written for?

Maybe. I just updated every package. Where can I find out which version of each package was used in the tutorial?

What’s the output of ] st?

This is the output I get.

[667455a9] Cubature v1.5.1
  [aae7a2af] DiffEqFlux v1.45.2
  [9fdde737] DiffEqOperators v4.41.0
  [0c46a032] DifferentialEquations v7.1.0
  [5b8099bc] DomainSets v0.5.9
  [587475ba] Flux v0.12.9
  [a75be94c] GalacticOptim v2.4.0
  [961ee093] ModelingToolkit v8.5.2
  [315f7962] NeuralPDE v4.5.1
  [429524aa] Optim v1.6.2
  [1dea7af3] OrdinaryDiffEq v6.7.1
  [91a5bcdd] Plots v1.27.1
  [67601950] Quadrature v1.12.0
  [f2b01f46] Roots v1.3.15

]st -m? It seems like it might be a Symbolics.jl versioning issue.

This gives me the following output

  [c3fe647b] AbstractAlgebra v0.24.1
  [621f4979] AbstractFFTs v1.1.0
  [1520ce14] AbstractTrees v0.3.4
  [79e6a3ab] Adapt v3.3.3
  [dce04be8] ArgCheck v2.3.0
  [ec485272] ArnoldiMethod v0.2.0
  [4fba245c] ArrayInterface v3.2.2
  [4c555306] ArrayLayouts v0.7.10
  [15f4f7f2] AutoHashEquals v0.2.0
  [13072b0f] AxisAlgorithms v1.0.1
  [ab4f0b2a] BFloat16s v0.2.0
  [aae01518] BandedMatrices v0.16.11
  [198e06fe] BangBang v0.3.36
  [9718e550] Baselet v0.1.1
  [e2ed5e7c] Bijections v0.1.3
  [62783981] BitTwiddlingConvenienceFunctions v0.1.3
  [8e7c35d0] BlockArrays v0.16.11
  [ffab5731] BlockBandedMatrices v0.11.1
  [764a87c0] BoundaryValueDiffEq v2.7.1
  [fa961155] CEnum v0.4.1
  [2a0fbf3d] CPUSummary v0.1.15
  [00ebfdb7] CSTParser v3.3.3
  [052768ef] CUDA v3.8.5
  [49dc2e85] Calculus v0.5.1
  [7057c7e9] Cassette v0.3.10
  [082447d4] ChainRules v1.28.0
  [d360d2e6] ChainRulesCore v1.13.0
  [9e997f8a] ChangesOfVariables v0.1.2
  [fb6a15b2] CloseOpenIntervals v0.1.6
  [944b1d66] CodecZlib v0.7.0
  [35d6a980] ColorSchemes v3.17.1
  [3da002f7] ColorTypes v0.11.0
  [5ae59095] Colors v0.12.8
  [861a8166] Combinatorics v1.0.2
  [a80b9123] CommonMark v0.8.6
  [38540f10] CommonSolve v0.2.0
  [bbf7d656] CommonSubexpressions v0.3.0
  [34da2185] Compat v3.42.0
  [b152e2b5] CompositeTypes v0.1.2
  [a33af91c] CompositionsBase v0.1.1
  [88cd18e8] ConsoleProgressMonitor v0.1.2
  [187b0558] ConstructionBase v1.3.0
  [d38c429a] Contour v0.5.7
  [a8cc5b0e] Crayons v4.1.1
  [8a292aeb] Cuba v2.2.0
  [667455a9] Cubature v1.5.1
  [754358af] DEDataArrays v0.2.2
  [9a962f9c] DataAPI v1.9.0
  [82cc6244] DataInterpolations v3.8.0
  [864edb3b] DataStructures v0.18.11
  [e2d170a0] DataValueInterfaces v1.0.0
  [244e2a9f] DefineSingletons v0.1.2
  [bcd4f6db] DelayDiffEq v5.35.1
  [b429d917] DensityInterface v0.4.0
  [2b5f629d] DiffEqBase v6.82.1
  [459566f4] DiffEqCallbacks v2.22.0
  [aae7a2af] DiffEqFlux v1.45.2
  [c894b116] DiffEqJump v8.3.0
  [77a26b50] DiffEqNoiseProcess v5.9.0
  [9fdde737] DiffEqOperators v4.41.0
  [41bf760c] DiffEqSensitivity v6.70.0
  [163ba53b] DiffResults v1.0.3
  [b552c78f] DiffRules v1.10.0
  [0c46a032] DifferentialEquations v7.1.0
  [b4f34e82] Distances v0.10.7
  [31c24e10] Distributions v0.25.52
  [ced4e74d] DistributionsAD v0.6.38
  [ffbed154] DocStringExtensions v0.8.6
  [5b8099bc] DomainSets v0.5.9
  [fa6b7ba4] DualNumbers v0.6.7
  [7c1d4256] DynamicPolynomials v0.4.4
  [da5c29d0] EllipsisNotation v1.3.0
  [7da242da] Enzyme v0.8.5
  [d4d017d3] ExponentialUtilities v1.13.0
  [e2ba6199] ExprTools v0.1.8
  [c87230d0] FFMPEG v0.4.1
  [7a1cc6ca] FFTW v1.4.6
  [7034ab61] FastBroadcast v0.1.14
  [9aa1b823] FastClosures v0.3.2
  [1a297f60] FillArrays v0.12.8
  [6a86dc24] FiniteDiff v2.11.0
  [53c48c17] FixedPointNumbers v0.8.4
  [587475ba] Flux v0.12.9
  [59287772] Formatting v0.4.2
  [f6369f11] ForwardDiff v0.10.25
  [069b7b12] FunctionWrappers v1.1.2
  [d9f16b24] Functors v0.2.8
  [0c68f7d7] GPUArrays v8.3.1
  [61eb1bfa] GPUCompiler v0.13.14
  [28b8d3ca] GR v0.64.0
  [a75be94c] GalacticOptim v2.4.0
  [5c1252a2] GeometryBasics v0.4.2
  [af5da776] GlobalSensitivity v1.3.2
  [86223c79] Graphs v1.6.0
  [42e2da0e] Grisu v1.0.2
  [0b43b601] Groebner v0.2.0
  [d5909c97] GroupsCore v0.4.0
  [19dc6840] HCubature v1.5.0
  [cd3eb016] HTTP v0.9.17
  [3e5b6fbb] HostCPUFeatures v0.1.7
  [0e44f5e4] Hwloc v2.0.0
  [34004b35] HypergeometricFunctions v0.3.8
  [7869d1d1] IRTools v0.4.5
  [615f187c] IfElse v0.1.1
  [d25df0c9] Inflate v0.1.2
  [83e8ac13] IniFile v0.5.1
  [22cec73e] InitialValues v0.3.1
  [a98d9a8b] Interpolations v0.13.5
  [8197267c] IntervalSets v0.5.3
  [3587e190] InverseFunctions v0.1.3
  [92d709cd] IrrationalConstants v0.1.1
  [c8e1da08] IterTools v1.4.0
  [42fd0dbc] IterativeSolvers v0.9.2
  [82899510] IteratorInterfaceExtensions v1.0.0
  [692b3bcd] JLLWrappers v1.4.1
  [682c06a0] JSON v0.21.3
  [98e50ef6] JuliaFormatter v0.22.7
  [e5e0dc1b] Juno v0.8.4
  [ef3ab10e] KLU v0.3.0
  [5ab0869b] KernelDensity v0.6.3
  [ba0b0d4f] Krylov v0.7.13
  [0b1a1467] KrylovKit v0.5.3
  [929cbde3] LLVM v4.9.1
  [b964fa9f] LaTeXStrings v1.3.0
  [2ee39098] LabelledArrays v1.8.0
  [23fbe1c1] Latexify v0.15.13
  [a5e1c1ea] LatinHypercubeSampling v1.8.0
  [73f95e8e] LatticeRules v0.0.1
  [10f19ff3] LayoutPointers v0.1.6
  [50d2b5c4] Lazy v0.15.1
  [5078a376] LazyArrays v0.22.5
  [d7e5e226] LazyBandedMatrices v0.7.6
  [0fc2ff8b] LeastSquaresOptim v0.8.3
  [1d6d02ad] LeftChildRightSiblingTrees v0.1.3
  [2d8b4e74] LevyArea v1.0.0
  [d3d80556] LineSearches v7.1.1
  [7ed4a6bd] LinearSolve v1.13.0
  [2ab3a3ac] LogExpFunctions v0.3.10
  [e6f89c97] LoggingExtras v0.4.7
  [bdcacae8] LoopVectorization v0.12.103
  [d8e11817] MLStyle v0.4.10
  [1914dd2f] MacroTools v0.5.9
  [d125e4d3] ManualMemory v0.1.8
  [a3b82374] MatrixFactorizations v0.8.5
  [739be429] MbedTLS v1.0.3
  [442fdcdd] Measures v0.3.1
  [e89f7d12] Media v0.5.0
  [c03570c3] Memoize v0.4.4
  [e9d8d322] Metatheory v1.3.3
  [128add7d] MicroCollections v0.1.2
  [e1d29d7a] Missings v1.0.2
  [961ee093] ModelingToolkit v8.5.2
  [4886b29c] MonteCarloIntegration v0.0.3
  [46d2c3a1] MuladdMacro v0.2.2
  [102ac46a] MultivariatePolynomials v0.4.3
  [d8a4904e] MutableArithmetics v1.0.0
  [d41bc354] NLSolversBase v7.8.2
  [2774e3e8] NLsolve v4.5.1
  [872c559c] NNlib v0.8.4
  [a00861dc] NNlibCUDA v0.2.2
  [77ba4419] NaNMath v0.3.7
  [315f7962] NeuralPDE v4.5.1
  [8913a72c] NonlinearSolve v0.3.16
  [d8793406] ObjectFile v0.3.7
  [6fe1bfb0] OffsetArrays v1.10.8
  [429524aa] Optim v1.6.2
  [bac558e1] OrderedCollections v1.4.1
  [1dea7af3] OrdinaryDiffEq v6.7.1
  [90014a1f] PDMats v0.11.7
  [d96e819e] Parameters v0.12.3
  [69de0a69] Parsers v2.2.3
  [ccf2f8ad] PlotThemes v2.0.1
  [995b91a9] PlotUtils v1.2.0
  [91a5bcdd] Plots v1.27.1
  [e409e4f3] PoissonRandom v0.4.0
  [f517fe37] Polyester v0.6.7
  [1d0040c9] PolyesterWeave v0.1.5
  [85a6dd25] PositiveFactorizations v0.2.4
  [d236fae5] PreallocationTools v0.2.4
  [21216c6a] Preferences v1.2.5
  [27ebfcd6] Primes v0.5.1
  [33c8b6b6] ProgressLogging v0.1.4
  [92933f4c] ProgressMeter v1.7.1
  [1fd47b50] QuadGK v2.4.2
  [67601950] Quadrature v1.12.0
  [8a4e6c94] QuasiMonteCarlo v0.2.4
  [74087812] Random123 v1.5.0
  [fb686558] RandomExtensions v0.4.3
  [e6cf234a] RandomNumbers v1.5.3
  [c84ed2f1] Ratios v0.4.3
  [c1ae055f] RealDot v0.1.0
  [3cdcf5f2] RecipesBase v1.2.1
  [01d81517] RecipesPipeline v0.5.1
  [731186ca] RecursiveArrayTools v2.25.1
  [f2c3362d] RecursiveFactorization v0.2.9
  [189a3867] Reexport v1.2.2
  [42d2dcc6] Referenceables v0.1.2
  [29dad682] RegularizationTools v0.5.3
  [05181044] RelocatableFolders v0.1.3
  [ae029012] Requires v1.3.0
  [ae5879a3] ResettableStacks v1.1.1
  [37e2e3b7] ReverseDiff v1.12.0
  [79098fc4] Rmath v0.7.0
  [f2b01f46] Roots v1.3.15
  [7e49a35a] RuntimeGeneratedFunctions v0.5.3
  [3cdde19b] SIMDDualNumbers v0.1.0
  [94e857df] SIMDTypes v0.1.0
  [476501e8] SLEEFPirates v0.6.31
  [1bc83da4] SafeTestsets v0.0.1
  [0bca4576] SciMLBase v1.28.0
  [6c6a2e73] Scratch v1.1.0
  [efcf1570] Setfield v0.8.2
  [992d4aef] Showoff v1.0.3
  [699a6c99] SimpleTraits v0.9.4
  [ed01d8cd] Sobol v1.5.0
  [a2af1166] SortingAlgorithms v1.0.1
  [47a9eef4] SparseDiffTools v1.20.2
  [276daf66] SpecialFunctions v2.1.4
  [171d559e] SplittablesBase v0.1.14
  [860ef19b] StableRNGs v1.0.0
  [aedffcd0] Static v0.4.1
  [90137ffa] StaticArrays v1.4.2
  [82ae8749] StatsAPI v1.2.1
  [2913bbd2] StatsBase v0.33.16
  [4c63d2b9] StatsFuns v0.9.16
  [9672c7b4] SteadyStateDiffEq v1.6.6
  [789caeaf] StochasticDiffEq v6.45.0
  [7792a7ef] StrideArraysCore v0.2.13
  [09ab397b] StructArrays v0.6.5
  [53d494c1] StructIO v0.3.0
  [c3572dad] Sundials v4.9.3
  [d1185830] SymbolicUtils v0.19.7
  [0c5d862f] Symbolics v4.3.1
  [3783bdb8] TableTraits v1.0.1
  [bd369af6] Tables v1.7.0
  [8ea1fca8] TermInterface v0.2.3
  [5d786b92] TerminalLoggers v0.1.5
  [8290d209] ThreadingUtilities v0.5.0
  [ac1d9e8a] ThreadsX v0.1.9
  [a759f4b9] TimerOutputs v0.5.16
  [0796e94c] Tokenize v0.5.21
  [9f7883ad] Tracker v0.2.20
  [3bb67fe8] TranscodingStreams v0.9.6
  [28d57a85] Transducers v0.4.73
  [592b5752] Trapz v2.0.3
  [a2a6695c] TreeViews v0.3.0
  [d5829a12] TriangularSolve v0.1.11
  [5c2747f8] URIs v1.3.0
  [3a884ed6] UnPack v1.0.2
  [d9a01c3f] Underscores v3.0.0
  [1cfade01] UnicodeFun v0.4.1
  [1986cc42] Unitful v1.11.0
  [41fe7b60] Unzip v0.1.2
  [3d5dd08c] VectorizationBase v0.21.25
  [19fa3120] VertexSafeGraphs v0.2.0
  [efce3f68] WoodburyMatrices v0.5.5
  [a5390f91] ZipFile v0.9.4
  [e88e6eb3] Zygote v0.6.37
  [700de1a5] ZygoteRules v0.2.2
  [6e34b625] Bzip2_jll v1.0.8+0
  [83423d85] Cairo_jll v1.16.1+1
  [3bed1096] Cuba_jll v4.2.2+1
  [7bc98958] Cubature_jll v1.0.5+0
  [5ae413db] EarCut_jll v2.2.3+0
  [7cc45869] Enzyme_jll v0.0.25+0
  [2e619515] Expat_jll v2.4.4+0
  [b22a6f82] FFMPEG_jll v4.4.0+0
  [f5851436] FFTW_jll v3.3.10+0
  [a3f928ae] Fontconfig_jll v2.13.93+0
  [d7e528f0] FreeType2_jll v2.10.4+0
  [559328eb] FriBidi_jll v1.0.10+0
  [0656b61e] GLFW_jll v3.3.6+0
  [d2c73de3] GR_jll v0.64.0+0
  [78b55507] Gettext_jll v0.21.0+0
  [7746bdde] Glib_jll v2.68.3+2
  [3b182d85] Graphite2_jll v1.3.14+0
  [2e76f6c2] HarfBuzz_jll v2.8.1+1
  [e33a78d0] Hwloc_jll v2.7.0+0
  [1d5cc7b8] IntelOpenMP_jll v2018.0.3+2
  [aacddb02] JpegTurbo_jll v2.1.2+0
  [c1c5ebd0] LAME_jll v3.100.1+0
  [88015f11] LERC_jll v3.0.0+1
  [dad2f222] LLVMExtra_jll v0.0.14+2
  [dd4b983a] LZO_jll v2.10.1+0
  [e9f186c6] Libffi_jll v3.2.2+1
  [d4300ac3] Libgcrypt_jll v1.8.7+0
  [7e76a0d4] Libglvnd_jll v1.3.0+3
  [7add5ba3] Libgpg_error_jll v1.42.0+0
  [94ce4f54] Libiconv_jll v1.16.1+1
  [4b2f31a3] Libmount_jll v2.35.0+0
  [89763e89] Libtiff_jll v4.3.0+1
  [38a345b3] Libuuid_jll v2.36.0+0
  [856f044c] MKL_jll v2022.0.0+0
  [e7412a2a] Ogg_jll v1.3.5+1
  [458c3c95] OpenSSL_jll v1.1.14+0
  [efe28fd5] OpenSpecFun_jll v0.5.5+0
  [91d4177d] Opus_jll v1.3.2+0
  [2f80f16e] PCRE_jll v8.44.0+0
  [30392449] Pixman_jll v0.40.1+0
  [ea2cea3b] Qt5Base_jll v5.15.3+0
  [f50d1b31] Rmath_jll v0.3.0+0
  [fb77eaff] Sundials_jll v5.2.1+0
  [a2964d1f] Wayland_jll v1.19.0+0
  [2381bf8a] Wayland_protocols_jll v1.25.0+0
  [02c8fc9c] XML2_jll v2.9.12+0
  [aed1982a] XSLT_jll v1.1.34+0
  [4f6342f7] Xorg_libX11_jll v1.6.9+4
  [0c0b7dd1] Xorg_libXau_jll v1.0.9+4
  [935fb764] Xorg_libXcursor_jll v1.2.0+4
  [a3789734] Xorg_libXdmcp_jll v1.1.3+4
  [1082639a] Xorg_libXext_jll v1.3.4+4
  [d091e8ba] Xorg_libXfixes_jll v5.0.3+4
  [a51aa0fd] Xorg_libXi_jll v1.7.10+4
  [d1454406] Xorg_libXinerama_jll v1.1.4+4
  [ec84b674] Xorg_libXrandr_jll v1.5.2+4
  [ea2f1a96] Xorg_libXrender_jll v0.9.10+4
  [14d82f49] Xorg_libpthread_stubs_jll v0.1.0+3
  [c7cfdc94] Xorg_libxcb_jll v1.13.0+3
  [cc61e674] Xorg_libxkbfile_jll v1.1.0+4
  [12413925] Xorg_xcb_util_image_jll v0.4.0+1
  [2def613f] Xorg_xcb_util_jll v0.4.0+1
  [975044d2] Xorg_xcb_util_keysyms_jll v0.4.0+1
  [0d47668e] Xorg_xcb_util_renderutil_jll v0.3.9+1
  [c22f9ab0] Xorg_xcb_util_wm_jll v0.4.1+1
  [35661453] Xorg_xkbcomp_jll v1.4.2+4
  [33bec58e] Xorg_xkeyboard_config_jll v2.27.0+4
  [c5fb5394] Xorg_xtrans_jll v1.4.0+3
  [3161d3a3] Zstd_jll v1.5.2+0
  [0ac62f75] libass_jll v0.15.1+0
  [f638f0a6] libfdk_aac_jll v2.0.2+0
  [b53b4c65] libpng_jll v1.6.38+0
  [f27f6e37] libvorbis_jll v1.3.7+1
  [1270edf5] x264_jll v2021.5.5+0
  [dfaa095f] x265_jll v3.5.0+0
  [d8fb68d0] xkbcommon_jll v0.9.1+5
  [0dad84c5] ArgTools
  [56f22d72] Artifacts
  [2a0f44e3] Base64
  [ade2ca70] Dates
  [8bb1440f] DelimitedFiles
  [8ba89e20] Distributed
  [f43a241f] Downloads
  [9fa8497b] Future
  [b77e0a4c] InteractiveUtils
  [4af54fe1] LazyArtifacts
  [b27032c2] LibCURL
  [76f85450] LibGit2
  [8f399da3] Libdl
  [37e2e46d] LinearAlgebra
  [56ddb016] Logging
  [d6f4376e] Markdown
  [a63ad114] Mmap
  [ca575930] NetworkOptions
  [44cfe95a] Pkg
  [de0858da] Printf
  [9abbd945] Profile
  [3fa0cd96] REPL
  [9a3f8284] Random
  [ea8e919c] SHA
  [9e88b42a] Serialization
  [1a1011a3] SharedArrays
  [6462fe0b] Sockets
  [2f01184e] SparseArrays
  [10745b16] Statistics
  [4607b0f0] SuiteSparse
  [fa267f1f] TOML
  [a4e569a6] Tar
  [8dfed614] Test
  [cf7118a7] UUIDs
  [4ec0a83e] Unicode
  [e66e0078] CompilerSupportLibraries_jll
  [deac9b47] LibCURL_jll
  [29816b5a] LibSSH2_jll
  [c8ffd9c3] MbedTLS_jll
  [14a3606d] MozillaCACerts_jll
  [4536629a] OpenBLAS_jll
  [05823500] OpenLibm_jll
  [bea87d4a] SuiteSparse_jll
  [83775a58] Zlib_jll
  [8e850b90] libblastrampoline_jll
  [8e850ede] nghttp2_jll
  [3f19e933] p7zip_jll

@shashi ?

Hm, I seem to get the same versions on all relevant packages, although you’ve got some additional stuff in there. Can you just try in a fresh environment with only NeuralPDE, Flux, ModelingToolkit, GalacticOptim, Optim, DiffEqFlux installed?

I deleted the Manifest and Project toml and installed the only required packages.

This is the output:

(@v1.7) pkg> st
      Status `C:\Users\K\.julia\environments\v1.7\Project.toml`
  [aae7a2af] DiffEqFlux v1.45.2
  [587475ba] Flux v0.12.9
  [a75be94c] GalacticOptim v2.4.0
  [961ee093] ModelingToolkit v8.5.2
  [315f7962] NeuralPDE v4.5.1
  [429524aa] Optim v1.6.2
(@v1.7) pkg> st -m
      Status `C:\Users\K\.julia\environments\v1.7\Manifest.toml`
  [c3fe647b] AbstractAlgebra v0.24.1
  [621f4979] AbstractFFTs v1.1.0
  [1520ce14] AbstractTrees v0.3.4
  [79e6a3ab] Adapt v3.3.3
  [dce04be8] ArgCheck v2.3.0
  [ec485272] ArnoldiMethod v0.2.0
  [4fba245c] ArrayInterface v3.2.2
  [4c555306] ArrayLayouts v0.7.10
  [15f4f7f2] AutoHashEquals v0.2.0
  [13072b0f] AxisAlgorithms v1.0.1
  [ab4f0b2a] BFloat16s v0.2.0
  [aae01518] BandedMatrices v0.16.11
  [198e06fe] BangBang v0.3.36
  [9718e550] Baselet v0.1.1
  [e2ed5e7c] Bijections v0.1.3
  [62783981] BitTwiddlingConvenienceFunctions v0.1.3
  [8e7c35d0] BlockArrays v0.16.11
  [ffab5731] BlockBandedMatrices v0.11.1
  [fa961155] CEnum v0.4.1
  [2a0fbf3d] CPUSummary v0.1.15
  [00ebfdb7] CSTParser v3.3.3
  [052768ef] CUDA v3.8.5
  [49dc2e85] Calculus v0.5.1
  [7057c7e9] Cassette v0.3.10
  [082447d4] ChainRules v1.28.0
  [d360d2e6] ChainRulesCore v1.13.0
  [9e997f8a] ChangesOfVariables v0.1.2
  [fb6a15b2] CloseOpenIntervals v0.1.6
  [944b1d66] CodecZlib v0.7.0
  [3da002f7] ColorTypes v0.11.0
  [5ae59095] Colors v0.12.8
  [861a8166] Combinatorics v1.0.2
  [a80b9123] CommonMark v0.8.6
  [38540f10] CommonSolve v0.2.0
  [bbf7d656] CommonSubexpressions v0.3.0
  [34da2185] Compat v3.42.0
  [b152e2b5] CompositeTypes v0.1.2
  [a33af91c] CompositionsBase v0.1.1
  [88cd18e8] ConsoleProgressMonitor v0.1.2
  [187b0558] ConstructionBase v1.3.0
  [a8cc5b0e] Crayons v4.1.1
  [8a292aeb] Cuba v2.2.0
  [667455a9] Cubature v1.5.1
  [754358af] DEDataArrays v0.2.2
  [9a962f9c] DataAPI v1.9.0
  [82cc6244] DataInterpolations v3.8.0
  [864edb3b] DataStructures v0.18.11
  [e2d170a0] DataValueInterfaces v1.0.0
  [244e2a9f] DefineSingletons v0.1.2
  [b429d917] DensityInterface v0.4.0
  [2b5f629d] DiffEqBase v6.82.1
  [459566f4] DiffEqCallbacks v2.22.0
  [aae7a2af] DiffEqFlux v1.45.2
  [c894b116] DiffEqJump v8.3.0
  [77a26b50] DiffEqNoiseProcess v5.9.0
  [9fdde737] DiffEqOperators v4.41.0
  [41bf760c] DiffEqSensitivity v6.70.0
  [163ba53b] DiffResults v1.0.3
  [b552c78f] DiffRules v1.10.0
  [b4f34e82] Distances v0.10.7
  [31c24e10] Distributions v0.25.52
  [ced4e74d] DistributionsAD v0.6.38
  [ffbed154] DocStringExtensions v0.8.6
  [5b8099bc] DomainSets v0.5.9
  [fa6b7ba4] DualNumbers v0.6.7
  [7c1d4256] DynamicPolynomials v0.4.4
  [da5c29d0] EllipsisNotation v1.3.0
  [7da242da] Enzyme v0.8.5
  [d4d017d3] ExponentialUtilities v1.13.0
  [e2ba6199] ExprTools v0.1.8
  [7a1cc6ca] FFTW v1.4.6
  [7034ab61] FastBroadcast v0.1.14
  [9aa1b823] FastClosures v0.3.2
  [1a297f60] FillArrays v0.12.8
  [6a86dc24] FiniteDiff v2.11.0
  [53c48c17] FixedPointNumbers v0.8.4
  [587475ba] Flux v0.12.9
  [59287772] Formatting v0.4.2
  [f6369f11] ForwardDiff v0.10.25
  [069b7b12] FunctionWrappers v1.1.2
  [d9f16b24] Functors v0.2.8
  [0c68f7d7] GPUArrays v8.3.1
  [61eb1bfa] GPUCompiler v0.13.14
  [a75be94c] GalacticOptim v2.4.0
  [af5da776] GlobalSensitivity v1.3.2
  [86223c79] Graphs v1.6.0
  [0b43b601] Groebner v0.2.0
  [d5909c97] GroupsCore v0.4.0
  [19dc6840] HCubature v1.5.0
  [3e5b6fbb] HostCPUFeatures v0.1.7
  [0e44f5e4] Hwloc v2.0.0
  [34004b35] HypergeometricFunctions v0.3.8
  [7869d1d1] IRTools v0.4.5
  [615f187c] IfElse v0.1.1
  [d25df0c9] Inflate v0.1.2
  [22cec73e] InitialValues v0.3.1
  [a98d9a8b] Interpolations v0.13.5
  [8197267c] IntervalSets v0.5.3
  [3587e190] InverseFunctions v0.1.3
  [92d709cd] IrrationalConstants v0.1.1
  [42fd0dbc] IterativeSolvers v0.9.2
  [82899510] IteratorInterfaceExtensions v1.0.0
  [692b3bcd] JLLWrappers v1.4.1
  [682c06a0] JSON v0.21.3
  [98e50ef6] JuliaFormatter v0.22.7
  [e5e0dc1b] Juno v0.8.4
  [ef3ab10e] KLU v0.3.0
  [5ab0869b] KernelDensity v0.6.3
  [ba0b0d4f] Krylov v0.7.13
  [0b1a1467] KrylovKit v0.5.3
  [929cbde3] LLVM v4.9.1
  [b964fa9f] LaTeXStrings v1.3.0
  [2ee39098] LabelledArrays v1.8.0
  [23fbe1c1] Latexify v0.15.13
  [a5e1c1ea] LatinHypercubeSampling v1.8.0
  [73f95e8e] LatticeRules v0.0.1
  [10f19ff3] LayoutPointers v0.1.6
  [50d2b5c4] Lazy v0.15.1
  [5078a376] LazyArrays v0.22.5
  [d7e5e226] LazyBandedMatrices v0.7.6
  [0fc2ff8b] LeastSquaresOptim v0.8.3
  [1d6d02ad] LeftChildRightSiblingTrees v0.1.3
  [2d8b4e74] LevyArea v1.0.0
  [d3d80556] LineSearches v7.1.1
  [7ed4a6bd] LinearSolve v1.13.0
  [2ab3a3ac] LogExpFunctions v0.3.10
  [e6f89c97] LoggingExtras v0.4.7
  [bdcacae8] LoopVectorization v0.12.103
  [d8e11817] MLStyle v0.4.10
  [1914dd2f] MacroTools v0.5.9
  [d125e4d3] ManualMemory v0.1.8
  [a3b82374] MatrixFactorizations v0.8.5
  [e89f7d12] Media v0.5.0
  [c03570c3] Memoize v0.4.4
  [e9d8d322] Metatheory v1.3.3
  [128add7d] MicroCollections v0.1.2
  [e1d29d7a] Missings v1.0.2
  [961ee093] ModelingToolkit v8.5.2
  [4886b29c] MonteCarloIntegration v0.0.3
  [46d2c3a1] MuladdMacro v0.2.2
  [102ac46a] MultivariatePolynomials v0.4.3
  [d8a4904e] MutableArithmetics v1.0.0
  [d41bc354] NLSolversBase v7.8.2
  [2774e3e8] NLsolve v4.5.1
  [872c559c] NNlib v0.8.4
  [a00861dc] NNlibCUDA v0.2.2
  [77ba4419] NaNMath v0.3.7
  [315f7962] NeuralPDE v4.5.1
  [8913a72c] NonlinearSolve v0.3.16
  [d8793406] ObjectFile v0.3.7
  [6fe1bfb0] OffsetArrays v1.10.8
  [429524aa] Optim v1.6.2
  [bac558e1] OrderedCollections v1.4.1
  [1dea7af3] OrdinaryDiffEq v6.7.1
  [90014a1f] PDMats v0.11.7
  [d96e819e] Parameters v0.12.3
  [69de0a69] Parsers v2.2.3
  [e409e4f3] PoissonRandom v0.4.0
  [f517fe37] Polyester v0.6.7
  [1d0040c9] PolyesterWeave v0.1.5
  [85a6dd25] PositiveFactorizations v0.2.4
  [d236fae5] PreallocationTools v0.2.4
  [21216c6a] Preferences v1.2.5
  [27ebfcd6] Primes v0.5.1
  [33c8b6b6] ProgressLogging v0.1.4
  [92933f4c] ProgressMeter v1.7.1
  [1fd47b50] QuadGK v2.4.2
  [67601950] Quadrature v1.12.0
  [8a4e6c94] QuasiMonteCarlo v0.2.4
  [74087812] Random123 v1.5.0
  [fb686558] RandomExtensions v0.4.3
  [e6cf234a] RandomNumbers v1.5.3
  [c84ed2f1] Ratios v0.4.3
  [c1ae055f] RealDot v0.1.0
  [3cdcf5f2] RecipesBase v1.2.1
  [731186ca] RecursiveArrayTools v2.25.1
  [f2c3362d] RecursiveFactorization v0.2.9
  [189a3867] Reexport v1.2.2
  [42d2dcc6] Referenceables v0.1.2
  [29dad682] RegularizationTools v0.5.3
  [ae029012] Requires v1.3.0
  [ae5879a3] ResettableStacks v1.1.1
  [37e2e3b7] ReverseDiff v1.12.0
  [79098fc4] Rmath v0.7.0
  [7e49a35a] RuntimeGeneratedFunctions v0.5.3
  [3cdde19b] SIMDDualNumbers v0.1.0
  [94e857df] SIMDTypes v0.1.0
  [476501e8] SLEEFPirates v0.6.31
  [1bc83da4] SafeTestsets v0.0.1
  [0bca4576] SciMLBase v1.28.0
  [efcf1570] Setfield v0.8.2
  [699a6c99] SimpleTraits v0.9.4
  [ed01d8cd] Sobol v1.5.0
  [a2af1166] SortingAlgorithms v1.0.1
  [47a9eef4] SparseDiffTools v1.20.2
  [276daf66] SpecialFunctions v2.1.4
  [171d559e] SplittablesBase v0.1.14
  [860ef19b] StableRNGs v1.0.0
  [aedffcd0] Static v0.4.1
  [90137ffa] StaticArrays v1.4.2
  [82ae8749] StatsAPI v1.2.1
  [2913bbd2] StatsBase v0.33.16
  [4c63d2b9] StatsFuns v0.9.16
  [789caeaf] StochasticDiffEq v6.45.0
  [7792a7ef] StrideArraysCore v0.2.13
  [53d494c1] StructIO v0.3.0
  [d1185830] SymbolicUtils v0.19.7
  [0c5d862f] Symbolics v4.3.1
  [3783bdb8] TableTraits v1.0.1
  [bd369af6] Tables v1.7.0
  [8ea1fca8] TermInterface v0.2.3
  [5d786b92] TerminalLoggers v0.1.5
  [8290d209] ThreadingUtilities v0.5.0
  [ac1d9e8a] ThreadsX v0.1.9
  [a759f4b9] TimerOutputs v0.5.16
  [0796e94c] Tokenize v0.5.21
  [9f7883ad] Tracker v0.2.20
  [3bb67fe8] TranscodingStreams v0.9.6
  [28d57a85] Transducers v0.4.73
  [592b5752] Trapz v2.0.3
  [a2a6695c] TreeViews v0.3.0
  [d5829a12] TriangularSolve v0.1.11
  [5c2747f8] URIs v1.3.0
  [3a884ed6] UnPack v1.0.2
  [d9a01c3f] Underscores v3.0.0
  [1986cc42] Unitful v1.11.0
  [3d5dd08c] VectorizationBase v0.21.25
  [19fa3120] VertexSafeGraphs v0.2.0
  [efce3f68] WoodburyMatrices v0.5.5
  [a5390f91] ZipFile v0.9.4
  [e88e6eb3] Zygote v0.6.37
  [700de1a5] ZygoteRules v0.2.2
  [3bed1096] Cuba_jll v4.2.2+1
  [7bc98958] Cubature_jll v1.0.5+0
  [7cc45869] Enzyme_jll v0.0.25+0
  [f5851436] FFTW_jll v3.3.10+0
  [e33a78d0] Hwloc_jll v2.7.0+0
  [1d5cc7b8] IntelOpenMP_jll v2018.0.3+2
  [dad2f222] LLVMExtra_jll v0.0.14+2
  [856f044c] MKL_jll v2022.0.0+0
  [efe28fd5] OpenSpecFun_jll v0.5.5+0
  [f50d1b31] Rmath_jll v0.3.0+0
  [0dad84c5] ArgTools
  [56f22d72] Artifacts
  [2a0f44e3] Base64
  [ade2ca70] Dates
  [8bb1440f] DelimitedFiles
  [8ba89e20] Distributed
  [f43a241f] Downloads
  [9fa8497b] Future
  [b77e0a4c] InteractiveUtils
  [4af54fe1] LazyArtifacts
  [b27032c2] LibCURL
  [76f85450] LibGit2
  [8f399da3] Libdl
  [37e2e46d] LinearAlgebra
  [56ddb016] Logging
  [d6f4376e] Markdown
  [a63ad114] Mmap
  [ca575930] NetworkOptions
  [44cfe95a] Pkg
  [de0858da] Printf
  [9abbd945] Profile
  [3fa0cd96] REPL
  [9a3f8284] Random
  [ea8e919c] SHA
  [9e88b42a] Serialization
  [1a1011a3] SharedArrays
  [6462fe0b] Sockets
  [2f01184e] SparseArrays
  [10745b16] Statistics
  [4607b0f0] SuiteSparse
  [fa267f1f] TOML
  [a4e569a6] Tar
  [8dfed614] Test
  [cf7118a7] UUIDs
  [4ec0a83e] Unicode
  [e66e0078] CompilerSupportLibraries_jll
  [deac9b47] LibCURL_jll
  [29816b5a] LibSSH2_jll
  [c8ffd9c3] MbedTLS_jll
  [14a3606d] MozillaCACerts_jll
  [4536629a] OpenBLAS_jll
  [05823500] OpenLibm_jll
  [bea87d4a] SuiteSparse_jll
  [83775a58] Zlib_jll
  [8e850b90] libblastrampoline_jll
  [8e850ede] nghttp2_jll
  [3f19e933] p7zip_jll

Sadly I still get the same error message.

And you restarted Julia? That error is indicative of an older Symbolics version.

Yes I did restart Julia. So what else could I do?

I just ran it locally and it was fine. Are you sure you aren’t activating some other manifset or something?

And are you on latest 1.7.(2)? There have been bug fixes since then…

Today I tried the tutorial on my notebook and it works fine. So I was curious why it does not work on my computer.
So I deinstalled Julia and deleted manually it’s corresponding folder .julia.

I downloaded the newest Julia version and installed only the necessary packages for the tutorial. And again, I get the same error message. To be honest, I do not know what else I can try and why I get this error.

Is this the REPL? VSCode?

I am using VSCode. Worked on the notebook. I deinstalled and installed Julia 1.7.2 three times now. Deleted the .julia folder over and over again. And now it is finally working. But to be honest, I have no idea why. I did nothing different :sweat_smile:.

1 Like

Glad it is working haha!!