# Cant start plutus playground client in nix shell

**URL:** <https://forum.cardano.org/t/cant-start-plutus-playground-client-in-nix-shell/100354>\
**Category:** Smart Contracts\
**Tags:** plutus\
**Created:** [29 April 2022 13:53 UTC](https://forum.cardano.org/t/cant-start-plutus-playground-client-in-nix-shell/100354 "2022-04-29T13:53:38Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Diamond\_Tusks](https://sea1.discourse-cdn.com/flex023/user_avatar/forum.cardano.org/diamond_tusks/32/49045_2.png) [@Diamond\_Tusks](https://forum.cardano.org/u/Diamond_Tusks)\
**Post date:** [29 April 2022 13:53 UTC](https://forum.cardano.org/t/cant-start-plutus-playground-client-in-nix-shell/100354/1 "2022-04-29T13:53:38Z")

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I’ve been following the plutus pioneer program videos… i got stuck on video 5. I cant start the plutus playground client… Im wondering if anyone else has had these issues? The are the errors i got after entering npm start in nix shell:  
My playground client wont start, i get some errors after i run ‘npm start’ … i updated npm and same… does someone know how i can fix this? Thanks!  
npm ERR! code ELIFECYCLE  
npm ERR! errno 1  
npm ERR! plutus-playground-client@1.0.0 start: `plutus-playground-generate-purs && npm install && npm run install:spago && npm run build:webpack:dev`  
npm ERR! Exit status 1  
npm ERR!  
npm ERR! Failed at the plutus-playground-client@1.0.0 start script.  
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.  
npm WARN Local package.json exists, but node\_modules missing, did you mean to install?

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<div class="post-metadata">

**Author:** ![Diamond\_Tusks](https://sea1.discourse-cdn.com/flex023/user_avatar/forum.cardano.org/diamond_tusks/32/49045_2.png) [@Diamond\_Tusks](https://forum.cardano.org/u/Diamond_Tusks)\
**Post date:** [30 April 2022 00:56 UTC](https://forum.cardano.org/t/cant-start-plutus-playground-client-in-nix-shell/100354/2 "2022-04-30T00:56:41Z")

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so i managed to get past this bit by reinstalling npm and upgrading… but then now it coming up with this error:  
plutus-playground-server: user error (Error evaluating simulation: InterpreterError (CompilationErrors [CompilationError {filename = “\n/private/tmp/web-ghc-work-77f83c3f9e81c792/Main.hs”, row = 2, column = 1, text = [" error:"," Could not find module \8216Playground.Contract\8217"," Use -v (or `:set -v` in ghci) to see a list of the files searched for."," |",“2 | import Playground.Contract”," | ^^^^^^^^^^^^^^^^^^^^^^^^^^"]},CompilationError {filename = “/private/tmp/web-ghc-work-77f83c3f9e81c792/Main.hs”, row = 3, column = 1, text = [" error:"," Could not find module \8216Plutus.Contract\8217"," Use -v (or `:set -v` in ghci) to see a list of the files searched for."," |",“3 | import Plutus.Contract”," | ^^^^^^^^^^^^^^^^^^^^^^"]},CompilationError {filename = “/private/tmp/web-ghc-work-77f83c3f9e81c792/Main.hs”, row = 4, column = 1, text = [" error:"," Could not find module \8216PlutusTx.Prelude\8217"," Use -v (or `:set -v` in ghci) to see a list of the files searched for."," |",“4 | import PlutusTx.Prelude”," | ^^^^^^^^^^^^^^^^^^^^^^^"]}]))