# Sample app won't start (Error: ENOENT on "npm start")

**URL:** <https://devforum.zoom.us/t/sample-app-wont-start-error-enoent-on-npm-start/40783>\
**Category:** Web\
**Created:** [January 17, 2021, 8:19am UTC](https://devforum.zoom.us/t/sample-app-wont-start-error-enoent-on-npm-start/40783 "2021-01-17T08:19:50Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![hasan.md](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/hasan.md/32/19300_2.png) [@hasan.md](https://devforum.zoom.us/u/hasan.md)\
**Post date:** [January 17, 2021, 8:19am UTC](https://devforum.zoom.us/t/sample-app-wont-start-error-enoent-on-npm-start/40783/1 "2021-01-17T08:19:51Z")

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**Description**  
Hi guys,  
I downloaded the Fully customizable web .zip file and tried running the sample app from the “Sample&Libs” directory. But “npm start” shows the following error:

errorno: ENOENT  
code: ENOENT

i can’t seem to find any specific reason for the exception. Any help would be greatly appreciated.

**Error**  
events.js:287  
throw er; // Unhandled ‘error’ event  
^

Error: spawn [http://localhost:9999/index.html](http://localhost:9999/index.html) ENOENT  
at Process.ChildProcess.\_handle.onexit (internal/child\_process.js:267:19)  
at onErrorNT (internal/child\_process.js:469:16)  
at processTicksAndRejections (internal/process/task\_queues.js:84:21)  
Emitted ‘error’ event on ChildProcess instance at:  
at Process.ChildProcess.\_handle.onexit (internal/child\_process.js:273:12)  
at onErrorNT (internal/child\_process.js:469:16)  
at processTicksAndRejections (internal/process/task\_queues.js:84:21) {  
errno: ‘ENOENT’,  
code: ‘ENOENT’,  
syscall: ‘spawn [http://localhost:9999/index.html](http://localhost:9999/index.html)’,

}  
npm ERR! code ELIFECYCLE  
npm ERR! errno 1  
npm ERR! instantsdk-demo@1.0.0 start: `set NODE_ENV=development && set BABEL_ENV=development && webpack-dev-server --config webpack.config.dev.js --https false --open http://localhost:9999/index.html --watch`

**To Reproduce(If applicable)**  
Steps to reproduce the behavior:

1. Download the zoom instant web sdk .zip file
2. extract
3. Go to “Sample&Libs” directory of the extracted dir
4. Run “npm install”
5. run “npm start”  
PS: i also tried copying “@zoomus” to node\_modules directory after step 4. But the error still persists.  
i shared the screenshots of the error and my directory structure below.

Thanks and Regards,  
Md. Mehedi

**Screenshots**

 ![zoomerror1](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/3/6/36a253548a2d38274423fa399c382db2ea9a33c7.png)

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**Author:** ![blagojco](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/blagojco/32/20680_2.png) [@blagojco](https://devforum.zoom.us/u/blagojco)\
**Post date:** [January 17, 2021, 7:12pm UTC](https://devforum.zoom.us/t/sample-app-wont-start-error-enoent-on-npm-start/40783/2 "2021-01-17T19:12:32Z")

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Hi Hasan,

I had the same problem, I solved with restarting the terminal . Make sure that

1. you run npm install first
2. copy @zoomus folder to node\_modules (it must exists there)
3. run npm run start

If the problem still exists, restart the terminal and try again

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**Author:** ![aatir](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/aatir/32/20832_2.png) [@aatir](https://devforum.zoom.us/u/aatir)\
**Post date:** [January 18, 2021, 2:48pm UTC](https://devforum.zoom.us/t/sample-app-wont-start-error-enoent-on-npm-start/40783/3 "2021-01-18T14:48:00Z")

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If you working on Linux run this command rather than npm run start, it worked for me.

**sudo webpack-dev-server --config webpack.config.dev.js --watch**

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**Author:** ![tommy](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/tommy/32/72769_2.png) [@tommy](https://devforum.zoom.us/u/tommy)\
**Post date:** [January 19, 2021, 6:54pm UTC](https://devforum.zoom.us/t/sample-app-wont-start-error-enoent-on-npm-start/40783/4 "2021-01-19T18:54:17Z")

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Hey @hasan.md ,

Please let us know if you are still having issues!

Thank you for sharing possible solutions @blagojco , @aatir ! 🙂

-Tommy

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<div class="post-metadata">

**Author:** ![hasan.md](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/hasan.md/32/19300_2.png) [@hasan.md](https://devforum.zoom.us/u/hasan.md)\
**Post date:** [January 20, 2021, 12:24pm UTC](https://devforum.zoom.us/t/sample-app-wont-start-error-enoent-on-npm-start/40783/5 "2021-01-20T12:24:52Z")

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No longer having the issue. Thanks a lot for the support.  
But i am facing new issue. Can’t seem to remove a user even though i am a host.  
client.removeUser(userId) throws fps error, type “OPERATION\_TIMEOUT”.

Fully customizable sdk says host should be allowed to remove a user.  
Any help will be greatly appreciated.  
Thanks in advance,  
Md. Mehedi  
FYI: I’ll create a new topic on this issue. Feel free to share your advice there as well.

@tommy @blagojco @aatir

 ![zoomerror3](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/2/1/21bd6e964fb3c73daa1a4be3221d6743957fe815.png)

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<div class="post-metadata">

**Author:** ![tommy](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/tommy/32/72769_2.png) [@tommy](https://devforum.zoom.us/u/tommy)\
**Post date:** [January 21, 2021, 7:03pm UTC](https://devforum.zoom.us/t/sample-app-wont-start-error-enoent-on-npm-start/40783/6 "2021-01-21T19:03:29Z")

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Thanks for creating a new topic @hasan.md , we will assist you there! 🙂

-Tommy