# Error while starting sample app

**URL:** <https://devforum.zoom.us/t/error-while-starting-sample-app/19038>\
**Category:** Web\
**Created:** [May 26, 2020, 5:18am UTC](https://devforum.zoom.us/t/error-while-starting-sample-app/19038 "2020-05-26T05:18:20Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![karthik.rt](https://avatars.discourse-cdn.com/v4/letter/k/bc8723/32.png) [@karthik.rt](https://devforum.zoom.us/u/karthik.rt)\
**Post date:** [May 26, 2020, 5:18am UTC](https://devforum.zoom.us/t/error-while-starting-sample-app/19038/1 "2020-05-26T05:18:20Z")

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Hi, Im facing an issue while running the sample app,  
I cloned the app, then I ran

1. “npm install” didnt get any errors
2. I manually installed “concurrently” and “http-server” by seeing other posts
3. Got an error while again executing “npm run start”

Error

> websdk-cdn@1.7.8 start /home/shashank/Documents/karthik/zoomP/sample-app-web/CDN  
> concurrently “http-server -a 0.0.0.0 -p 9999 -c-1 -o index.html”

npm ERR! Linux 4.15.0-91-generic  
npm ERR! argv “/usr/bin/node” “/usr/bin/npm” “run” “start”  
npm ERR! node v8.10.0  
npm ERR! npm v3.5.2  
npm ERR! code ELIFECYCLE  
npm ERR! websdk-cdn@1.7.8 start: `concurrently "http-server -a 0.0.0.0 -p 9999 -c-1 -o index.html"`  
npm ERR! Exit status 1  
npm ERR!  
npm ERR! Failed at the websdk-cdn@1.7.8 start script ‘concurrently “http-server -a 0.0.0.0 -p 9999 -c-1 -o index.html”’.  
npm ERR! Make sure you have the latest version of node.js and npm installed.  
npm ERR! If you do, this is most likely a problem with the websdk-cdn package,  
npm ERR! not with npm itself.  
npm ERR! Tell the author that this fails on your system:  
npm ERR! concurrently “http-server -a 0.0.0.0 -p 9999 -c-1 -o index.html”  
npm ERR! You can get information on how to open an issue for this project with:  
npm ERR! npm bugs websdk-cdn  
npm ERR! Or if that isn’t available, you can get their info via:  
npm ERR! npm owner ls websdk-cdn  
npm ERR! There is likely additional logging output above.

npm ERR! Please include the following file with any support request:  
npm ERR! /home/shashank/Documents/karthik/zoomP/sample-app-web/CDN/npm-debug.log

Im using Ubuntu v-18.04

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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:** [May 29, 2020, 10:58pm UTC](https://devforum.zoom.us/t/error-while-starting-sample-app/19038/2 "2020-05-29T22:58:39Z")

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Hey @karthik.rt,

Can you try just running `http-server` in the terminal? Or try just opening the index.html file in your browser.

Thanks,  
Tommy

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<div class="post-metadata">

**Author:** ![DeveloperBot](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/developerbot/32/12632_2.png) [@DeveloperBot](https://devforum.zoom.us/u/DeveloperBot)\
**Post date:** [August 21, 2020, 9:38pm UTC](https://devforum.zoom.us/t/error-while-starting-sample-app/19038/3 "2020-08-21T21:38:04Z")

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