# Precompile error in DifferentialEquations.jl

**URL:** <https://discourse.julialang.org/t/precompile-error-in-differentialequations-jl/94086>\
**Category:** New to Julia\
**Tags:** question, package, diffeq\
**Created:** [February 5, 2023, 10:07am UTC](https://discourse.julialang.org/t/precompile-error-in-differentialequations-jl/94086 "2023-02-05T10:07:35Z")\
**Posts on this page:** 12\
**Page:** 1

<div class="post-metadata">

**Author:** ![jredondo](https://avatars.discourse-cdn.com/v4/letter/j/ac8455/32.png) [@jredondo](https://discourse.julialang.org/u/jredondo)\
**Post date:** [February 5, 2023, 10:07am UTC](https://discourse.julialang.org/t/precompile-error-in-differentialequations-jl/94086/1 "2023-02-05T10:07:35Z")

</div>

Hi all!

I’m completely new to Julia and I was trying to set up the example in SciML ([Build and run your first simulation with Julia's SciML · Overview of Julia's SciML](https://docs.sciml.ai/Overview/stable/getting_started/first_simulation/)). However, when I try to do

```plaintext
   Pkg.add("DifferentialEquations")

```

I get a precompile error. This is the output of Pkg.precompile():

```julia
**Precompiling** project...

✗ LinearSolve

✗ NonlinearSolve

✗ OrdinaryDiffEq

✗ StochasticDiffEq

✗ DelayDiffEq

✗ DifferentialEquations

0 dependencies successfully precompiled in 58 seconds. 141 already precompiled.

**ERROR:** The following 4 direct dependencies failed to precompile:

NonlinearSolve [8913a72c-1f9b-4ce2-8d82-65094dcecaec]

Failed to precompile NonlinearSolve [8913a72c-1f9b-4ce2-8d82-65094dcecaec] to /Users/jaimeredondoyuste/.julia/compiled/v1.8/NonlinearSolve/jl_hKy20Z.

**ERROR:** LoadError: MethodError: convert(::Type{Union{}}, ::SparseArrays.SparseMatrixCSC{Float64, Int64}) is ambiguous. Candidates:

convert(T::Type{<:SparseArrays.AbstractSparseMatrixCSC}, m::AbstractMatrix) in SparseArrays at /opt/homebrew/Cellar/julia/1.8.5/share/julia/stdlib/v1.8/SparseArrays/src/sparsematrix.jl:745

convert(T::Type{<:LinearAlgebra.UpperTriangular}, m::SparseArrays.AbstractSparseMatrixCSC) in SparseArrays at /opt/homebrew/Cellar/julia/1.8.5/share/julia/stdlib/v1.8/SparseArrays/src/sparsematrix.jl:755

... [similar error, referred to different methods]...

Possible fix, define

convert(::Type{Union{}}, ::SparseArrays.AbstractSparseMatrixCSC)

Stacktrace:

[1] **Sparspak.SpkSparseSolver.SparseSolver{Int64, Float64}(**p::SparseArrays.SparseMatrixCSC{Float64, Int64}, slvr::Sparspak.SpkSparseBase._SparseBase{Int64, Float64}, n::Int64, ma::Int64, na::Int64, mc::Int64, nc::Int64, _inmatrixdone::Bool, _orderdone::Bool, _symbolicdone::Bool, _factordone::Bool, _trisolvedone::Bool, _refinedone::Bool, _condestdone::Bool**)** (repeats 2 times)

@ Sparspak.SpkSparseSolver ~/.julia/packages/Sparspak/ZSfSg/src/SparseMethod/SpkSparseSolver.jl:18

[2] **Sparspak.SpkSparseSolver.SparseSolver(**m::SparseArrays.SparseMatrixCSC{Float64, Int64}**)**

@ Sparspak.SparseCSCInterface ~/.julia/packages/Sparspak/ZSfSg/src/SparseCSCInterface/SparseCSCInterface.jl:189

...[similar stuff, output is too large otherwise]

**ERROR:** LoadError: Failed to precompile LinearSolve [7ed4a6bd-45f5-4d41-b270-4a48e9bafcae] to /Users/jaimeredondoyuste/.julia/compiled/v1.8/LinearSolve/jl_DHUd6j.

@ REPL[15]:1

```

I have shortened the output, since it is somewhat repetitive and otherwise the post becomes too large.

In case it helps, this is my Julia installation version:

```julia
julia> versioninfo()
Julia Version 1.8.5
Commit 17cfb8e65e* (2023-01-08 06:45 UTC)
Platform Info:
  OS: macOS (arm64-apple-darwin21.6.0)
  CPU: 8 × Apple M1 Pro
  WORD_SIZE: 64
  LIBM: libopenlibm
  LLVM: libLLVM-13.0.1 (ORCJIT, apple-m1)
  Threads: 1 on 6 virtual cores

```

I would appreciate if you have any idea how to debug or fix this. Thank you very much 🙂

---

<div class="post-metadata">

**Author:** ![ChrisRackauckas](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/chrisrackauckas/32/77_2.png) [@ChrisRackauckas](https://discourse.julialang.org/u/ChrisRackauckas)\
**Post date:** [February 5, 2023, 11:19am UTC](https://discourse.julialang.org/t/precompile-error-in-differentialequations-jl/94086/2 "2023-02-05T11:19:51Z")

</div>

@j-fu do you know why this keeps showing up for some people? If it’s a version bound thing then Sparsepak may need looser bounds.

---

<div class="post-metadata">

**Author:** ![j-fu](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/j-fu/32/11373_2.png) [@j-fu](https://discourse.julialang.org/u/j-fu)\
**Post date:** [February 5, 2023, 12:29pm UTC](https://discourse.julialang.org/t/precompile-error-in-differentialequations-jl/94086/3 "2023-02-05T12:29:23Z")

</div>

No real idea so far without the possibility to repeat this in an MWE (I understand that this is not easy to get).

What I felt with 1.8.5 is (and this may be the case here) that a method signature like `mymethod(SparseMatrixCSC)` is kind of not fully recognized during specialization and the situation is fixed by declaring `mymethod(SparseMatrixCSC{TV,Ti}) where {Tv,Ti}` . There are few places in Sparspak where this change could be made which could be related to the problem of OP. Very hand-wavy I know…

Will prepare a PR on sparspak tonight (de).

---

<div class="post-metadata">

**Author:** ![j-fu](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/j-fu/32/11373_2.png) [@j-fu](https://discourse.julialang.org/u/j-fu)\
**Post date:** [February 5, 2023, 9:08pm UTC](https://discourse.julialang.org/t/precompile-error-in-differentialequations-jl/94086/4 "2023-02-05T21:08:59Z")

</div>

Ok, Sparspak 0.3.8 has the updates now. Not sure if this will help though.  
Maybe @jredondo you could try to update: Just try a  
`pkg> update` and see if Sparspak v0.3.8 is drawn in (via LinearSolve). And then see if it precompiles.

Issue discussion in [LinearSolve fails to precompile on julia 1.8.5 · Issue #266 · SciML/LinearSolve.jl · GitHub](https://github.com/SciML/LinearSolve.jl/issues/266) as this may be related.

---

<div class="post-metadata">

**Author:** ![jredondo](https://avatars.discourse-cdn.com/v4/letter/j/ac8455/32.png) [@jredondo](https://discourse.julialang.org/u/jredondo)\
**Post date:** [February 6, 2023, 9:44am UTC](https://discourse.julialang.org/t/precompile-error-in-differentialequations-jl/94086/5 "2023-02-06T09:44:59Z")

</div>

Thanks!

Sparspak v0.3.8 was installed when updating, however it still does not precompile. The error log looks like:

```julia
ERROR: The following 2 direct dependencies failed to precompile:

OrdinaryDiffEq [1dea7af3-3e70-54e6-95c3-0bf5283fa5ed]

Failed to precompile OrdinaryDiffEq [1dea7af3-3e70-54e6-95c3-0bf5283fa5ed] to /Users/jaimeredondoyuste/.julia/compiled/v1.8/OrdinaryDiffEq/jl_MaF86C.
ERROR: LoadError: MethodError: convert(::Type{Union{}}, ::SparseArrays.SparseMatrixCSC{Float64, Int64}) is ambiguous. Candidates:
  convert(T::Type{<:SparseArrays.AbstractSparseMatrixCSC}, m::AbstractMatrix) in SparseArrays at /opt/homebrew/Cellar/julia/1.8.5/share/julia/stdlib/v1.8/SparseArrays/src/sparsematrix.jl:745
  convert(T::Type{<:LinearAlgebra.UpperTriangular}, m::SparseArrays.AbstractSparseMatrixCSC) in SparseArrays at /opt/homebrew/Cellar/julia/1.8.5/share/julia/stdlib/v1.8/SparseArrays/src/sparsematrix.jl:755
  convert(T::Type{<:LinearAlgebra.SymTridiagonal}, m::SparseArrays.AbstractSparseMatrixCSC) in SparseArrays at /opt/homebrew/Cellar/julia/1.8.5/share/julia/stdlib/v1.8/SparseArrays/src/sparsematrix.jl:749
  convert(T::Type{<:LinearAlgebra.Diagonal}, m::SparseArrays.AbstractSparseMatrixCSC) in SparseArrays at /opt/homebrew/Cellar/julia/1.8.5/share/julia/stdlib/v1.8/SparseArrays/src/sparsematrix.jl:747
  convert(T::Type{<:LinearAlgebra.LowerTriangular}, m::SparseArrays.AbstractSparseMatrixCSC) in SparseArrays at /opt/homebrew/Cellar/julia/1.8.5/share/julia/stdlib/v1.8/SparseArrays/src/sparsematrix.jl:753
  convert(T::Type{<:LinearAlgebra.Bidiagonal}, m::AbstractMatrix) in LinearAlgebra at /opt/homebrew/Cellar/julia/1.8.5/share/julia/stdlib/v1.8/LinearAlgebra/src/bidiag.jl:203
  convert(T::Type{<:LinearAlgebra.Tridiagonal}, m::SparseArrays.AbstractSparseMatrixCSC) in SparseArrays at /opt/homebrew/Cellar/julia/1.8.5/share/julia/stdlib/v1.8/SparseArrays/src/sparsematrix.jl:751
  convert(T::Type{<:SparseArrays.SparseVector}, m::SparseArrays.AbstractSparseMatrixCSC) in SparseArrays at /opt/homebrew/Cellar/julia/1.8.5/share/julia/stdlib/v1.8/SparseArrays/src/sparsevector.jl:466
  convert(::Type{Union{}}, a::AbstractArray) in Base at array.jl:618
  convert(::Type{SA}, a::AbstractArray) where SA<:StaticArraysCore.StaticArray in StaticArrays at /Users/jaimeredondoyuste/.julia/packages/StaticArrays/jA1zK/src/convert.jl:194
  convert(::Type{T}, a::AbstractArray) where T<:Array in Base at array.jl:617
  convert(T::Type{<:BitArray}, a::AbstractArray) in Base at bitarray.jl:580
  convert(::Type{T}, M::AbstractArray) where T<:OffsetArrays.OffsetArray in OffsetArrays at /Users/jaimeredondoyuste/.julia/packages/OffsetArrays/TcCEq/src/OffsetArrays.jl:256
  convert(::Type{Union{}}, x) in Base at essentials.jl:213
  convert(::Type{T}, arg) where T<:VecElement in Base at baseext.jl:19
  convert(::Type{T}, obj) where T<:FunctionWrappers.FunctionWrapper in FunctionWrappers at /Users/jaimeredondoyuste/.julia/packages/FunctionWrappers/Q5cBx/src/FunctionWrappers.jl:113
Possible fix, define
  convert(::Type{Union{}}, ::SparseArrays.AbstractSparseMatrixCSC)
Stacktrace:
  [1] Sparspak.SpkSparseSolver.SparseSolver{Int64, Float64}(p::SparseArrays.SparseMatrixCSC{Float64, Int64}, slvr::Sparspak.SpkSparseBase._SparseBase{Int64, Float64}, n::Int64, ma::Int64, na::Int64, mc::Int64, nc::Int64, _inmatrixdone::Bool, _orderdone::Bool, _symbolicdone::Bool, _factordone::Bool, _trisolvedone::Bool, _refinedone::Bool, _condestdone::Bool) (repeats 2 times)
    @ Sparspak.SpkSparseSolver ~/.julia/packages/Sparspak/5cKXy/src/SparseMethod/SpkSparseSolver.jl:18
  [2] Sparspak.SpkSparseSolver.SparseSolver(m::SparseArrays.SparseMatrixCSC{Float64, Int64})
    @ Sparspak.SparseCSCInterface ~/.julia/packages/Sparspak/5cKXy/src/SparseCSCInterface/SparseCSCInterface.jl:189
  [3] sparspaklu(m::SparseArrays.SparseMatrixCSC{Float64, Int64}; factorize::Bool)
    @ Sparspak.SparseCSCInterface ~/.julia/packages/Sparspak/5cKXy/src/SparseCSCInterface/SparseCSCInterface.jl:219
  [4] init_cacheval(#unused#::LinearSolve.SparspakFactorization, A::SparseArrays.SparseMatrixCSC{Float64, Int64}, b::Vector{Float64}, u::Vector{Float64}, Pl::SciMLOperators.IdentityOperator{4}, Pr::SciMLOperators.IdentityOperator{4}, maxiters::Int64, abstol::Float64, reltol::Float64, verbose::Bool, assumptions::LinearSolve.OperatorAssumptions{true})
    @ LinearSolve ~/.julia/packages/LinearSolve/fBayl/src/factorization.jl:514
  [5] init(::SciMLBase.LinearProblem{Nothing, true, SparseArrays.SparseMatrixCSC{Float64, Int64}, Vector{Float64}, SciMLBase.NullParameters, Base.Pairs{Symbol, Union{}, Tuple{}, NamedTuple{(), Tuple{}}}}, ::LinearSolve.SparspakFactorization; alias_A::Bool, alias_b::Bool, abstol::Float64, reltol::Float64, maxiters::Int64, verbose::Bool, Pl::SciMLOperators.IdentityOperator{4}, Pr::SciMLOperators.IdentityOperator{4}, assumptions::LinearSolve.OperatorAssumptions{true}, kwargs::Base.Pairs{Symbol, Union{}, Tuple{}, NamedTuple{(), Tuple{}}})
    @ LinearSolve ~/.julia/packages/LinearSolve/fBayl/src/common.jl:117
  [6] init(::SciMLBase.LinearProblem{Nothing, true, SparseArrays.SparseMatrixCSC{Float64, Int64}, Vector{Float64}, SciMLBase.NullParameters, Base.Pairs{Symbol, Union{}, Tuple{}, NamedTuple{(), Tuple{}}}}, ::LinearSolve.SparspakFactorization)
    @ LinearSolve ~/.julia/packages/LinearSolve/fBayl/src/common.jl:88
  [7] solve(::SciMLBase.LinearProblem{Nothing, true, SparseArrays.SparseMatrixCSC{Float64, Int64}, Vector{Float64}, SciMLBase.NullParameters, Base.Pairs{Symbol, Union{}, Tuple{}, NamedTuple{(), Tuple{}}}}, ::LinearSolve.SparspakFactorization; kwargs::Base.Pairs{Symbol, Union{}, Tuple{}, NamedTuple{(), Tuple{}}})
    @ LinearSolve ~/.julia/packages/LinearSolve/fBayl/src/common.jl:157
  [8] solve(::SciMLBase.LinearProblem{Nothing, true, SparseArrays.SparseMatrixCSC{Float64, Int64}, Vector{Float64}, SciMLBase.NullParameters, Base.Pairs{Symbol, Union{}, Tuple{}, NamedTuple{(), Tuple{}}}}, ::LinearSolve.SparspakFactorization)
    @ LinearSolve ~/.julia/packages/LinearSolve/fBayl/src/common.jl:154
  [9] macro expansion
    @ ~/.julia/packages/LinearSolve/fBayl/src/LinearSolve.jl:102 [inlined]
 [10] top-level scope
    @ ~/.julia/packages/SnoopPrecompile/1XXT1/src/SnoopPrecompile.jl:62
 [11] include
    @ ./Base.jl:419 [inlined]
 [12] include_package_for_output(pkg::Base.PkgId, input::String, depot_path::Vector{String}, dl_load_path::Vector{String}, load_path::Vector{String}, concrete_deps::Vector{Pair{Base.PkgId, UInt64}}, source::String)
    @ Base ./loading.jl:1554
 [13] top-level scope
    @ stdin:1
in expression starting at /Users/jaimeredondoyuste/.julia/packages/LinearSolve/fBayl/src/LinearSolve.jl:1
in expression starting at stdin:1

```

With an error also to load LinearSolve which depends on the failure to precompile of OrdinaryDiffEq and then a similar error to the one copied for DifferentialEquations.

Is there any simple fix for this? Would just installing a previous version of Julia and the packages would work? As far as I know, I do not think I have anything weird in my local environment that could be causing trouble, but I also don’t know the best way to check this.

In any case, thanks for the help 🙂

---

<div class="post-metadata">

**Author:** ![j-fu](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/j-fu/32/11373_2.png) [@j-fu](https://discourse.julialang.org/u/j-fu)\
**Post date:** [February 6, 2023, 10:02am UTC](https://discourse.julialang.org/t/precompile-error-in-differentialequations-jl/94086/6 "2023-02-06T10:02:14Z")

</div>

Ok - I am puzzled.

Does the error occur also when you just add Sparspak.jl ?

I will find a colleague who has an arm64 mac and see if the bug occurs there.

---

<div class="post-metadata">

**Author:** ![j-fu](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/j-fu/32/11373_2.png) [@j-fu](https://discourse.julialang.org/u/j-fu)\
**Post date:** [February 6, 2023, 10:28am UTC](https://discourse.julialang.org/t/precompile-error-in-differentialequations-jl/94086/7 "2023-02-06T10:28:12Z")

</div>

Got this from my colleague:

```julia
   _ _ _(_)_ | Documentation: https://docs.julialang.org
  (_) | (_) (_) |
   _ _ _| |_ __ _ | Type "?" for help, "]?" for Pkg help.
  | | | | | | |/ _` | |
  | | |_| | | | (_| | | Version 1.8.5 (2023-01-08)
 _/ |\ __'_|_|_|\__'_| | Official https://julialang.org/ release
|__/ |

(@v1.8) pkg> add LinearSolve
    Updating registry at `~/.julia/registries/General.toml`
   Resolving package versions...
   Installed SIMDTypes ──────────────────────── v0.1.0
   Installed GPUArraysCore ──────────────────── v0.1.3
   Installed ArrayInterfaceStaticArrays ─────── v0.1.5
   Installed Adapt ──────────────────────────── v3.5.0
   Installed DiffRules ──────────────────────── v1.12.2
   Installed BitTwiddlingConvenienceFunctions ─ v0.1.5
   Installed FunctionWrappersWrappers ───────── v0.1.1
   Installed OffsetArrays ───────────────────── v1.12.9
   Installed StrideArraysCore ───────────────── v0.4.6
   Installed VectorizationBase ──────────────── v0.21.58
   Installed CpuId ──────────────────────────── v0.3.1
   Installed DiffResults ────────────────────── v1.1.0
   Installed LayoutPointers ─────────────────── v0.1.13
   Installed RuntimeGeneratedFunctions ──────── v0.5.5
   Installed LinearSolve ────────────────────── v1.35.0
   Installed SciMLBase ──────────────────────── v1.82.0
   Installed CPUSummary ─────────────────────── v0.2.2
   Installed Tables ─────────────────────────── v1.10.0
   Installed SciMLOperators ─────────────────── v0.1.19
   Installed Setfield ───────────────────────── v1.1.1
   Installed DataAPI ────────────────────────── v1.14.0
   Installed StaticArrays ───────────────────── v1.5.12
   Installed RecipesBase ────────────────────── v1.3.3
   Installed LoopVectorization ──────────────── v0.12.150
   Installed Polyester ──────────────────────── v0.7.2
   Installed ArrayInterfaceStaticArraysCore ─── v0.1.3
   Installed StaticArraysCore ───────────────── v1.4.0
   Installed NaNMath ────────────────────────── v1.0.1
   Installed ConstructionBase ───────────────── v1.4.1
   Installed ArrayInterfaceCore ─────────────── v0.1.29
   Installed EnumX ──────────────────────────── v1.0.4
   Installed HostCPUFeatures ────────────────── v0.1.14
   Installed ThreadingUtilities ─────────────── v0.5.1
   Installed ChainRulesCore ─────────────────── v1.15.7
   Installed FunctionWrappers ───────────────── v1.1.3
   Installed ManualMemory ───────────────────── v0.1.8
   Installed PolyesterWeave ─────────────────── v0.2.1
   Installed SymbolicIndexingInterface ──────── v0.2.1
   Installed SnoopPrecompile ────────────────── v1.0.3
   Installed RecursiveArrayTools ────────────── v2.36.0
   Installed ArrayInterface ─────────────────── v6.0.25
   Installed ForwardDiff ────────────────────── v0.10.34
   Installed FillArrays ─────────────────────── v0.13.7
   Installed TriangularSolve ────────────────── v0.1.19
   Installed FastLapackInterface ────────────── v1.2.8
   Installed KLU ────────────────────────────── v0.4.0
   Installed LogExpFunctions ────────────────── v0.3.21
   Installed ArrayInterfaceOffsetArrays ─────── v0.1.7
   Installed Lazy ───────────────────────────── v0.15.1
   Installed CloseOpenIntervals ─────────────── v0.1.11
   Installed Compat ─────────────────────────── v4.6.0
   Installed SLEEFPirates ───────────────────── v0.6.38
   Installed MacroTools ─────────────────────── v0.5.10
   Installed Static ─────────────────────────── v0.8.3
   Installed Krylov ─────────────────────────── v0.9.0
   Installed InverseFunctions ───────────────── v0.1.8
   Installed RecursiveFactorization ─────────── v0.2.17
   Installed CommonSolve ────────────────────── v0.2.3
   Installed DocStringExtensions ────────────── v0.9.3
   Installed KrylovKit ──────────────────────── v0.6.0
   Installed ChangesOfVariables ─────────────── v0.1.5
   Installed Sparspak ───────────────────────── v0.3.8
    Updating `~/.julia/environments/v1.8/Project.toml`
  [7ed4a6bd] + LinearSolve v1.35.0
    Updating `~/.julia/environments/v1.8/Manifest.toml`
  [79e6a3ab] + Adapt v3.5.0
  [4fba245c] + ArrayInterface v6.0.25
  [30b0a656] + ArrayInterfaceCore v0.1.29
  [015c0d05] + ArrayInterfaceOffsetArrays v0.1.7
  [b0d46f97] + ArrayInterfaceStaticArrays v0.1.5
  [dd5226c6] + ArrayInterfaceStaticArraysCore v0.1.3
  [62783981] + BitTwiddlingConvenienceFunctions v0.1.5
  [2a0fbf3d] + CPUSummary v0.2.2
  [d360d2e6] + ChainRulesCore v1.15.7
  [9e997f8a] + ChangesOfVariables v0.1.5
  [fb6a15b2] + CloseOpenIntervals v0.1.11
  [38540f10] + CommonSolve v0.2.3
  [bbf7d656] + CommonSubexpressions v0.3.0
  [34da2185] + Compat v4.6.0
  [187b0558] + ConstructionBase v1.4.1
  [adafc99b] + CpuId v0.3.1
  [9a962f9c] + DataAPI v1.14.0
  [e2d170a0] + DataValueInterfaces v1.0.0
  [163ba53b] + DiffResults v1.1.0
  [b552c78f] + DiffRules v1.12.2
  [ffbed154] + DocStringExtensions v0.9.3
  [4e289a0a] + EnumX v1.0.4
  [e2ba6199] + ExprTools v0.1.8
  [29a986be] + FastLapackInterface v1.2.8
  [1a297f60] + FillArrays v0.13.7
  [f6369f11] + ForwardDiff v0.10.34
  [069b7b12] + FunctionWrappers v1.1.3
  [77dc65aa] + FunctionWrappersWrappers v0.1.1
  [46192b85] + GPUArraysCore v0.1.3
  [3e5b6fbb] + HostCPUFeatures v0.1.14
  [615f187c] + IfElse v0.1.1
  [3587e190] + InverseFunctions v0.1.8
  [92d709cd] + IrrationalConstants v0.1.1
  [42fd0dbc] + IterativeSolvers v0.9.2
  [82899510] + IteratorInterfaceExtensions v1.0.0
  [692b3bcd] + JLLWrappers v1.4.1
  [ef3ab10e] + KLU v0.4.0
  [ba0b0d4f] + Krylov v0.9.0
  [0b1a1467] + KrylovKit v0.6.0
  [10f19ff3] + LayoutPointers v0.1.13
  [50d2b5c4] + Lazy v0.15.1
  [7ed4a6bd] + LinearSolve v1.35.0
  [2ab3a3ac] + LogExpFunctions v0.3.21
  [bdcacae8] + LoopVectorization v0.12.150
  [1914dd2f] + MacroTools v0.5.10
  [d125e4d3] + ManualMemory v0.1.8
  [77ba4419] + NaNMath v1.0.1
  [6fe1bfb0] + OffsetArrays v1.12.9
  [bac558e1] + OrderedCollections v1.4.1
  [f517fe37] + Polyester v0.7.2
  [1d0040c9] + PolyesterWeave v0.2.1
  [21216c6a] + Preferences v1.3.0
  [3cdcf5f2] + RecipesBase v1.3.3
  [731186ca] + RecursiveArrayTools v2.36.0
  [f2c3362d] + RecursiveFactorization v0.2.17
  [189a3867] + Reexport v1.2.2
  [ae029012] + Requires v1.3.0
  [7e49a35a] + RuntimeGeneratedFunctions v0.5.5
  [94e857df] + SIMDTypes v0.1.0
  [476501e8] + SLEEFPirates v0.6.38
  [0bca4576] + SciMLBase v1.82.0
  [c0aeaf25] + SciMLOperators v0.1.19
  [efcf1570] + Setfield v1.1.1
  [66db9d55] + SnoopPrecompile v1.0.3
  [e56a9233] + Sparspak v0.3.8
  [276daf66] + SpecialFunctions v2.1.7
  [aedffcd0] + Static v0.8.3
  [90137ffa] + StaticArrays v1.5.12
  [1e83bf80] + StaticArraysCore v1.4.0
  [7792a7ef] + StrideArraysCore v0.4.6
  [2efcf032] + SymbolicIndexingInterface v0.2.1
  [3783bdb8] + TableTraits v1.0.1
  [bd369af6] + Tables v1.10.0
  [8290d209] + ThreadingUtilities v0.5.1
  [d5829a12] + TriangularSolve v0.1.19
  [410a4b4d] + Tricks v0.1.6
  [3a884ed6] + UnPack v1.0.2
  [3d5dd08c] + VectorizationBase v0.21.58
  [700de1a5] + ZygoteRules v0.2.2
  [efe28fd5] + OpenSpecFun_jll v0.5.5+0
  [0dad84c5] + ArgTools v1.1.1
  [56f22d72] + Artifacts
  [2a0f44e3] + Base64
  [ade2ca70] + Dates
  [8ba89e20] + Distributed
  [f43a241f] + Downloads v1.6.0
  [7b1f6079] + FileWatching
  [9fa8497b] + Future
  [b77e0a4c] + InteractiveUtils
  [b27032c2] + LibCURL v0.6.3
  [76f85450] + LibGit2
  [8f399da3] + Libdl
  [37e2e46d] + LinearAlgebra
  [56ddb016] + Logging
  [d6f4376e] + Markdown
  [ca575930] + NetworkOptions v1.2.0
  [44cfe95a] + Pkg v1.8.0
  [de0858da] + Printf
  [3fa0cd96] + REPL
  [9a3f8284] + Random
  [ea8e919c] + SHA v0.7.0
  [9e88b42a] + Serialization
  [6462fe0b] + Sockets
  [2f01184e] + SparseArrays
  [10745b16] + Statistics
  [4607b0f0] + SuiteSparse
  [fa267f1f] + TOML v1.0.0
  [a4e569a6] + Tar v1.10.1
  [8dfed614] + Test
  [cf7118a7] + UUIDs
  [4ec0a83e] + Unicode
  [e66e0078] + CompilerSupportLibraries_jll v1.0.1+0
  [deac9b47] + LibCURL_jll v7.84.0+0
  [29816b5a] + LibSSH2_jll v1.10.2+0
  [c8ffd9c3] + MbedTLS_jll v2.28.0+0
  [14a3606d] + MozillaCACerts_jll v2022.2.1
  [4536629a] + OpenBLAS_jll v0.3.20+0
  [05823500] + OpenLibm_jll v0.8.1+0
  [bea87d4a] + SuiteSparse_jll v5.10.1+0
  [83775a58] + Zlib_jll v1.2.12+3
  [8e850b90] + libblastrampoline_jll v5.1.1+0
  [8e850ede] + nghttp2_jll v1.48.0+0
  [3f19e933] + p7zip_jll v17.4.0+0
Precompiling project...
  88 dependencies successfully precompiled in 42 seconds

(@v1.8) pkg>

```

---

<div class="post-metadata">

**Author:** ![j-fu](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/j-fu/32/11373_2.png) [@j-fu](https://discourse.julialang.org/u/j-fu)\
**Post date:** [February 6, 2023, 10:29am UTC](https://discourse.julialang.org/t/precompile-error-in-differentialequations-jl/94086/8 "2023-02-06T10:29:19Z")

</div>

Can you list what is in your global environment (with Pkg.status()? )

---

<div class="post-metadata">

**Author:** ![jredondo](https://avatars.discourse-cdn.com/v4/letter/j/ac8455/32.png) [@jredondo](https://discourse.julialang.org/u/jredondo)\
**Post date:** [February 6, 2023, 10:35am UTC](https://discourse.julialang.org/t/precompile-error-in-differentialequations-jl/94086/9 "2023-02-06T10:35:08Z")

</div>

Here’s the environment:

```julia
(@v1.8) pkg> status
Status `~/.julia/environments/v1.8/Project.toml`
  [28f2ccd6] ApproxFun v0.13.14
  [bcd4f6db] DelayDiffEq v5.40.6
  [0c46a032] DifferentialEquations v7.6.0
⌅ [5b8099bc] DomainSets v0.5.15
  [61744808] DynamicalSystems v2.3.2
  [86223c79] Graphs v1.7.4
  [23fbe1c1] Latexify v0.15.18
  [7ed4a6bd] LinearSolve v1.35.0
  [94925ecb] MethodOfLines v0.8.2
  [961ee093] ModelingToolkit v8.46.0
  [8913a72c] NonlinearSolve v1.3.0
  [1dea7af3] OrdinaryDiffEq v6.41.0
  [91a5bcdd] Plots v1.38.4
  [e56a9233] Sparspak v0.3.8
  [789caeaf] StochasticDiffEq v6.57.4
Info Packages marked with ⌅ have new versions available but compatibility constraints restrict them from upgrading. To see why use `status --outdated`

```

When I just add sparspak:

```julia
(@v1.8) pkg> add Sparspak
   Resolving package versions...
  No Changes to `~/.julia/environments/v1.8/Project.toml`
  No Changes to `~/.julia/environments/v1.8/Manifest.toml`

```

When I try to precompile, however I get the above error. Is there any package that I am missing?

---

<div class="post-metadata">

**Author:** ![j-fu](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/j-fu/32/11373_2.png) [@j-fu](https://discourse.julialang.org/u/j-fu)\
**Post date:** [February 6, 2023, 2:51pm UTC](https://discourse.julialang.org/t/precompile-error-in-differentialequations-jl/94086/10 "2023-02-06T14:51:23Z")

</div>

No I dont’t think you miss anything. Devs try to dig down…  
How did you install Julia ? What is your version of homebrew?

---

<div class="post-metadata">

**Author:** ![j-fu](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/j-fu/32/11373_2.png) [@j-fu](https://discourse.julialang.org/u/j-fu)\
**Post date:** [February 6, 2023, 3:03pm UTC](https://discourse.julialang.org/t/precompile-error-in-differentialequations-jl/94086/11 "2023-02-06T15:03:07Z")

</div>

Can you join the discussion on [Package not Precompiling · Issue #271 · SciML/LinearSolve.jl · GitHub](https://github.com/SciML/LinearSolve.jl/issues/271) ?

---

<div class="post-metadata">

**Author:** ![j-fu](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/j-fu/32/11373_2.png) [@j-fu](https://discourse.julialang.org/u/j-fu)\
**Post date:** [February 6, 2023, 6:20pm UTC](https://discourse.julialang.org/t/precompile-error-in-differentialequations-jl/94086/12 "2023-02-06T18:20:17Z")

</div>

In the moment it seems that this is a bug in the homebrew Julia build, and that the problem goes away when switching to a Julia version dowloaded from the Julia homepage.