# Issue with SciMLSensitivity and DifferentialEquations
**URL:** https://discourse.julialang.org/t/issue-with-scimlsensitivity-and-differentialequations/119796
**Category:** General Usage
**Tags:** differentialequation
**Created:** [September 24, 2024, 7:50am UTC](https://discourse.julialang.org/t/issue-with-scimlsensitivity-and-differentialequations/119796 "2024-09-24T07:50:55Z")
**Posts on this page:** 11
**Page:** 1
### Author:  [@Nick1](https://discourse.julialang.org/u/Nick1)
#### Post date: [September 24, 2024, 7:50am UTC](https://discourse.julialang.org/t/issue-with-scimlsensitivity-and-differentialequations/119796/1 "2024-09-24T07:50:55Z")
I installed the SciMLSensitivity library and it removed the BoundaryValueDiffEq, so when I am trying to load the DifferentialEquations package, I get the following error:
> ERROR: LoadError: Failed to precompile BoundaryValueDiffEq [764a87c0-6b3e-53db-9096-fe964310641d] to “C:\Users\memmo\.julia\compiled\v1.10\BoundaryValueDiffEq\jl\_7CDE.tmp”.
How can I fix it since I need the SciMLSensitivity library? Thanks!
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### Author:  [@ChrisRackauckas](https://discourse.julialang.org/u/ChrisRackauckas)
#### Post date: [September 24, 2024, 9:22am UTC](https://discourse.julialang.org/t/issue-with-scimlsensitivity-and-differentialequations/119796/2 "2024-09-24T09:22:02Z")
Are you on Julia v1.10.5? Share `]st`.
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### Author:  [@Nick1](https://discourse.julialang.org/u/Nick1)
#### Post date: [September 24, 2024, 7:06pm UTC](https://discourse.julialang.org/t/issue-with-scimlsensitivity-and-differentialequations/119796/3 "2024-09-24T19:06:52Z")
I was using Julia v10.10.4. I updated it to v1.10.5 but I still get the same error. Here is the ]st:
> [336ed68f] CSV v0.10.14
> ⌅ [479239e8] Catalyst v13.5.1
> [b0b7db55] ComponentArrays v0.15.17
> [a93c6f00] DataFrames v1.7.0
> [8bb1440f] DelimitedFiles v1.9.1
> ⌅ [459566f4] DiffEqCallbacks v2.37.0
> [1130ab10] DiffEqParamEstim v2.2.0
> ⌃ [0c46a032] DifferentialEquations v7.13.0
> [31c24e10] Distributions v0.25.111
> [f6369f11] ForwardDiff v0.10.36
> [af5da776] GlobalSensitivity v2.7.0
> [a98d9a8b] Interpolations v0.15.1
> [b6b21f68] Ipopt v1.6.6
> [033835bb] JLD2 v0.5.3
> [5ab0869b] KernelDensity v0.6.9
> [7f56f5a3] LSODA v0.7.5
> [23992714] MAT v0.10.7
> [bcdb8e00] Metaheuristics v3.3.5
> ⌅ [961ee093] ModelingToolkit v8.76.0
> [429524aa] Optim v1.9.4
> ⌅ [7f7a1694] Optimization v3.24.3
> ⌃ [3e6eede4] OptimizationBBO v0.3.0
> ⌃ [36348300] OptimizationOptimJL v0.3.2
> [bac558e1] OrderedCollections v1.6.3
> ⌃ [1dea7af3] OrdinaryDiffEq v6.80.1
> [48d54b35] PEtab v2.15.0
> [91a5bcdd] Plots v1.40.8
> [438e738f] PyCall v1.96.4
> ⌃ [1fd47b50] QuadGK v2.10.1
> [8a4e6c94] QuasiMonteCarlo v0.3.3
> [731186ca] RecursiveArrayTools v3.27.0
> ⌃ [1ed8b502] SciMLSensitivity v7.56.0
> [f3b207a7] StatsPlots v0.15.7
> ⌃ [220ca800] StructuralIdentifiability v0.5.4
> ⌃ [c3572dad] Sundials v4.24.0
> [bd369af6] Tables v1.12.0
> [fdbf4ff8] XLSX v0.10.3
> [de0858da] Printf
> [9a3f8284] Random
> [10745b16] Statistics v1.10.0
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### Author:  [@Nick1](https://discourse.julialang.org/u/Nick1)
#### Post date: [September 24, 2024, 7:36pm UTC](https://discourse.julialang.org/t/issue-with-scimlsensitivity-and-differentialequations/119796/4 "2024-09-24T19:36:57Z")
Here is also the error I get when I do `using DifferentialEquations`
> Info Given DifferentialEquations was explicitly requested, output will be shown live
> ERROR: LoadError: TypeError: in ODESolution, in AC, expected AC\<:Union{Nothing, Vector{Int64}}, got Type{Vector{Float64}} ◓ DifferentialEquations
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### Author:  [@ChrisRackauckas](https://discourse.julialang.org/u/ChrisRackauckas)
#### Post date: [September 24, 2024, 9:27pm UTC](https://discourse.julialang.org/t/issue-with-scimlsensitivity-and-differentialequations/119796/5 "2024-09-24T21:27:50Z")
Update to ModelingToolkit v9?
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### Author:  [@Nick1](https://discourse.julialang.org/u/Nick1)
#### Post date: [September 24, 2024, 11:40pm UTC](https://discourse.julialang.org/t/issue-with-scimlsensitivity-and-differentialequations/119796/6 "2024-09-24T23:40:38Z")
I might need to wait for the new version of PEtab to update ModelingToolkit. Right now, PEtab is compatible with ModelingToolkit v8.76.0.
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### Author:  [@ChrisRackauckas](https://discourse.julialang.org/u/ChrisRackauckas)
#### Post date: [September 25, 2024, 9:45am UTC](https://discourse.julialang.org/t/issue-with-scimlsensitivity-and-differentialequations/119796/7 "2024-09-25T09:45:50Z")
If you use OrdinaryDiffEq directly instead of BoundaryValueDiffEq are you fine? Something might’ve been missing a minor bump.
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### Author:  [@Nick1](https://discourse.julialang.org/u/Nick1)
#### Post date: [September 25, 2024, 5:19pm UTC](https://discourse.julialang.org/t/issue-with-scimlsensitivity-and-differentialequations/119796/8 "2024-09-25T17:19:18Z")
The OrdinaryDiffEq works fine when I load it. I am unsure why I get this issue with the BoundaryValueDiffEq and DifferentialEquations.
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### Author:  [@Nick1](https://discourse.julialang.org/u/Nick1)
#### Post date: [October 1, 2024, 10:03pm UTC](https://discourse.julialang.org/t/issue-with-scimlsensitivity-and-differentialequations/119796/9 "2024-10-01T22:03:43Z")
The problem persists. I tried to update the packages with no success. Here is the list of the outdated packages:
```julia
⌃ [764a87c0] BoundaryValueDiffEq v5.7.1 (
### Author:  [@ChrisRackauckas](https://discourse.julialang.org/u/ChrisRackauckas)
#### Post date: [October 1, 2024, 10:05pm UTC](https://discourse.julialang.org/t/issue-with-scimlsensitivity-and-differentialequations/119796/10 "2024-10-01T22:05:19Z")
I thought the PETab and ReactionNetworkImporters releases went out today which unblock? Did you do a registry up?
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### Author:  [@Nick1](https://discourse.julialang.org/u/Nick1)
#### Post date: [October 1, 2024, 10:43pm UTC](https://discourse.julialang.org/t/issue-with-scimlsensitivity-and-differentialequations/119796/11 "2024-10-01T22:43:37Z")
I had to do it by force using `]add DifferentialEquations@7.14.0`. For some reason using only `]add` did not work