# Dependency not found after installing the package just fine

**URL:** <https://discourse.julialang.org/t/dependency-not-found-after-installing-the-package-just-fine/127407>\
**Category:** General Usage\
**Tags:** question\
**Created:** [March 27, 2025, 10:22am UTC](https://discourse.julialang.org/t/dependency-not-found-after-installing-the-package-just-fine/127407 "2025-03-27T10:22:37Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Tamas\_Papp](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/tamas_papp/32/25949_2.png) [@Tamas\_Papp](https://discourse.julialang.org/u/Tamas_Papp)\
**Post date:** [March 27, 2025, 10:22am UTC](https://discourse.julialang.org/t/dependency-not-found-after-installing-the-package-just-fine/127407/1 "2025-03-27T10:22:37Z")

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I don’t understand what is going on here:

```julia
   _ _ _(_)_ | Documentation: https://docs.julialang.org
  (_) | (_) (_) |
   _ _ _| |_ __ _ | Type "?" for help, "]?" for Pkg help.
  | | | | | | |/ _` | |
  | | |_| | | | (_| | | Version 1.11.4 (2025-03-10)
 _/ |\ __'_|_|_|\__'_| | Official https://julialang.org/ release
|__/ |

(@v1.11) pkg> add PkgSkeleton
   Resolving package versions...
    Updating `~/.julia/environments/v1.11/Project.toml`
  [d254efa0] + PkgSkeleton v1.3.2
    Updating `~/.julia/environments/v1.11/Manifest.toml`
  [dce04be8] + ArgCheck v2.5.0
  [d254efa0] + PkgSkeleton v1.3.2
Precompiling project...
  57 dependencies successfully precompiled in 41 seconds. 69 already precompiled.

julia> import PkgSkeleton
Precompiling PkgSkeleton...
Info Given PkgSkeleton was explicitly requested, output will be shown live
ERROR: LoadError: ArgumentError: Package ArgCheck [dce04be8-c92d-5529-be00-80e4d2c0e197] is required but does not seem to be installed:
 - Run `Pkg.instantiate()` to install all recorded dependencies.

```

Could it be some cache/precompilation corruption? What should I nuke/regenerate?

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<div class="post-metadata">

**Author:** ![kristoffer.carlsson](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/kristoffer.carlsson/32/22_2.png) [@kristoffer.carlsson](https://discourse.julialang.org/u/kristoffer.carlsson)\
**Post date:** [March 27, 2025, 12:53pm UTC](https://discourse.julialang.org/t/dependency-not-found-after-installing-the-package-just-fine/127407/2 "2025-03-27T12:53:16Z")

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You can try out [GitHub - KristofferC/PkgFsck.jl](https://github.com/KristofferC/PkgFsck.jl) or delete `.julia/packages/ArgCheck` and do an `instantiate`.

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<div class="post-metadata">

**Author:** ![Tamas\_Papp](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/tamas_papp/32/25949_2.png) [@Tamas\_Papp](https://discourse.julialang.org/u/Tamas_Papp)\
**Post date:** [March 27, 2025, 1:12pm UTC](https://discourse.julialang.org/t/dependency-not-found-after-installing-the-package-just-fine/127407/3 "2025-03-27T13:12:08Z")

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Neither helped, but deleting the v1.11 `Manifest.toml` fixed the issue. I guess it was somehow corrupted (even though I never got error messages for removing/adding packages).

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<div class="post-metadata">

**Author:** ![kristoffer.carlsson](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/kristoffer.carlsson/32/22_2.png) [@kristoffer.carlsson](https://discourse.julialang.org/u/kristoffer.carlsson)\
**Post date:** [March 27, 2025, 3:35pm UTC](https://discourse.julialang.org/t/dependency-not-found-after-installing-the-package-just-fine/127407/4 "2025-03-27T15:35:21Z")

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Would have been interesting to see what was in that manifest.

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<div class="post-metadata">

**Author:** ![Tamas\_Papp](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/tamas_papp/32/25949_2.png) [@Tamas\_Papp](https://discourse.julialang.org/u/Tamas_Papp)\
**Post date:** [March 27, 2025, 3:37pm UTC](https://discourse.julialang.org/t/dependency-not-found-after-installing-the-package-just-fine/127407/5 "2025-03-27T15:37:16Z")

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Yes, I realized after deleting it, sorry. Got a bit too trigger happy after a [3-day exercise in bisection](https://discourse.julialang.org/t/how-to-isolate-report-non-deterministic-bug/127176/).