# Questions when installing ReservoirComputing

**URL:** <https://discourse.julialang.org/t/questions-when-installing-reservoircomputing/96229>\
**Category:** General Usage\
**Created:** [March 17, 2023, 6:56am UTC](https://discourse.julialang.org/t/questions-when-installing-reservoircomputing/96229 "2023-03-17T06:56:36Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![lw\_zuo](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/lw_zuo/32/47807_2.png) [@lw\_zuo](https://discourse.julialang.org/u/lw_zuo)\
**Post date:** [March 17, 2023, 6:56am UTC](https://discourse.julialang.org/t/questions-when-installing-reservoircomputing/96229/1 "2023-03-17T06:56:36Z")

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```julia
(@v1.7) pkg> add ReservoirComputing
    Updating registry at `C:\Users\Seven\.julia\registries\General.toml`
   Resolving package versions...
  No Changes to `C:\Users\Seven\.julia\environments\v1.7\Project.toml`
  No Changes to `C:\Users\Seven\.julia\environments\v1.7\Manifest.toml`
Precompiling project...
  ? DiffEqProblemLibrary

```

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<div class="post-metadata">

**Author:** ![nilshg](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/nilshg/32/2283_2.png) [@nilshg](https://discourse.julialang.org/u/nilshg)\
**Post date:** [March 17, 2023, 7:45am UTC](https://discourse.julialang.org/t/questions-when-installing-reservoircomputing/96229/2 "2023-03-17T07:45:07Z")

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What is the question?

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<div class="post-metadata">

**Author:** ![lw\_zuo](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/lw_zuo/32/47807_2.png) [@lw\_zuo](https://discourse.julialang.org/u/lw_zuo)\
**Post date:** [March 28, 2023, 2:16am UTC](https://discourse.julialang.org/t/questions-when-installing-reservoircomputing/96229/3 "2023-03-28T02:16:38Z")

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when I wanna add this package, this problem will show up.  
Actually I have tried some method, but only reintallation works.

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**Author:** ![SteffenPL](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/steffenpl/32/206270_2.png) [@SteffenPL](https://discourse.julialang.org/u/SteffenPL)\
**Post date:** [March 28, 2023, 2:45am UTC](https://discourse.julialang.org/t/questions-when-installing-reservoircomputing/96229/4 "2023-03-28T02:45:14Z")

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It seems like the actual error message is missing? Can you maybe post which error you get. From you question, it looks like the package was already installed, that’s why it will not do anything.  
There is `update ReservoirComputing` if you want a newer version. Or you could explicit define which version you want with `add ResevoirComputing@v1.2.3`.

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<div class="post-metadata">

**Author:** ![lw\_zuo](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/lw_zuo/32/47807_2.png) [@lw\_zuo](https://discourse.julialang.org/u/lw_zuo)\
**Post date:** [March 28, 2023, 7:35am UTC](https://discourse.julialang.org/t/questions-when-installing-reservoircomputing/96229/5 "2023-03-28T07:35:00Z")

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Thanks.I have tried to remove the package and add it again, but it does not work.  
I have solved the problem.The answer is reinstall julia.