# The package \*\*FowardDiff.jl\*\* could not load because it failed to initialize

**URL:** <https://discourse.julialang.org/t/the-package-fowarddiff-jl-could-not-load-because-it-failed-to-initialize/130180>\
**Category:** General Usage\
**Created:** [June 24, 2025, 7:05pm UTC](https://discourse.julialang.org/t/the-package-fowarddiff-jl-could-not-load-because-it-failed-to-initialize/130180 "2025-06-24T19:05:25Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Miguel](https://avatars.discourse-cdn.com/v4/letter/m/439d5e/32.png) [@Miguel](https://discourse.julialang.org/u/Miguel)\
**Post date:** [June 24, 2025, 7:05pm UTC](https://discourse.julialang.org/t/the-package-fowarddiff-jl-could-not-load-because-it-failed-to-initialize/130180/1 "2025-06-24T19:05:25Z")

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**The package FowardDiff.jl could not load because it failed to initialize.**

**That’s not nice! Things you could try:**

\*\*\* Restart the notebook.\*\*  
\*\*\* Try a different Julia version.\*\*  
\*\*\* Contact the developers of FowardDiff.jl about this error.\*\*

**You might find useful information in the package installation log:**

\*\*Resolving… \*\*  
**===**  
\*\*No Changes to `/tmp/jl_NSyHkG/Project.toml` \*\*  
\*\*No Changes to `/tmp/jl_NSyHkG/Manifest.toml` \*\*  
\*\*Instantiating… \*\*  
\*\*=== \*\*  
\*\*Precompiling… \*\*  
\*\*=== \*\*  
**Activating project at `/tmp/jl_NSyHkG`**

**Please could you help me?**

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**Author:** ![Benny](https://avatars.discourse-cdn.com/v4/letter/b/49beb7/32.png) [@Benny](https://discourse.julialang.org/u/Benny)\
**Post date:** [June 24, 2025, 7:17pm UTC](https://discourse.julialang.org/t/the-package-fowarddiff-jl-could-not-load-because-it-failed-to-initialize/130180/2 "2025-06-24T19:17:18Z")

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Assuming the notebook is Pluto from the message and if this is an easier issue, try `ForwardDiff` with that exact spelling instead of `FowardDiff` first.

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<div class="post-metadata">

**Author:** ![Miguel](https://avatars.discourse-cdn.com/v4/letter/m/439d5e/32.png) [@Miguel](https://discourse.julialang.org/u/Miguel)\
**Post date:** [June 24, 2025, 9:08pm UTC](https://discourse.julialang.org/t/the-package-fowarddiff-jl-could-not-load-because-it-failed-to-initialize/130180/3 "2025-06-24T21:08:35Z")

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Thanks and sorry, I read it a thousand times and did not see it. 😅

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<div class="post-metadata">

**Author:** ![Benny](https://avatars.discourse-cdn.com/v4/letter/b/49beb7/32.png) [@Benny](https://discourse.julialang.org/u/Benny)\
**Post date:** [June 24, 2025, 9:16pm UTC](https://discourse.julialang.org/t/the-package-fowarddiff-jl-could-not-load-because-it-failed-to-initialize/130180/4 "2025-06-24T21:16:50Z")

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Happens to all of us. Julia’s builtin `Pkg` does throw an error informing us that our added registries have no such name, even gives some good suggestions:

```julia
(@v1.11) pkg> add FowardDiff
    Updating registry at `C:\Users\Benny\.julia\registries\General.toml`
ERROR: The following package names could not be resolved:
 * FowardDiff (not found in project, manifest or registry)
   Suggestions: ForwardDiff ForwardDiff2 Fourdfp FiniteDiff CamiDiff ForwardDiffPullbacks PolyesterForwardDiff

```

But Pluto’s own error message obscures that and gives the other possible reasons and suggestions instead.