# Development Build Failed **URL:** \ **Category:** Integrations\ **Created:** [November 17, 2022, 3:30am UTC](https://community.nocodb.com/t/development-build-failed/721 "2022-11-17T03:30:31Z")\ **Posts on this page:** 18\ **Page:** 1
**Author:** ![ramnalawade1986](https://avatars.discourse-cdn.com/v4/letter/r/e79b87/32.png) [@ramnalawade1986](https://community.nocodb.com/u/ramnalawade1986)\ **Post date:** [November 17, 2022, 3:30am UTC](https://community.nocodb.com/t/development-build-failed/721/1 "2022-11-17T03:30:31Z")
Development Build Failed, with error Failed to load module script: Expected a JavaScript module script but the server responded with a MIME type of “text/html”. Strict MIME type checking is enforced for module scripts per HTML spec. ![Capture](https://canada1.discourse-cdn.com/flex011/uploads/nocodb/original/1X/3d8494f67d15b3eae30322f25ce7075f32f04f6b.jpeg) ---
**Author:** ![dstala](https://avatars.discourse-cdn.com/v4/letter/d/f04885/32.png) [@dstala](https://community.nocodb.com/u/dstala)\ **Post date:** [November 17, 2022, 4:06am UTC](https://community.nocodb.com/t/development-build-failed/721/2 "2022-11-17T04:06:21Z")
@ramnalawade1986 can you help us with more details? Nocodb, OS, Node & NPM versions? ---
**Author:** ![ramnalawade1986](https://avatars.discourse-cdn.com/v4/letter/r/e79b87/32.png) [@ramnalawade1986](https://community.nocodb.com/u/ramnalawade1986)\ **Post date:** [November 17, 2022, 4:24am UTC](https://community.nocodb.com/t/development-build-failed/721/3 "2022-11-17T04:24:39Z")
NocoDb - Latest release ([Development setup - NocoDB](https://docs.nocodb.com/engineering/development-setup/)) OS :- Ubuntu 22.04 Node :- v16.18.1 Npm :- 8.19.2 ---
**Author:** ![pranavxc](https://avatars.discourse-cdn.com/v4/letter/p/53a042/32.png) [@pranavxc](https://community.nocodb.com/u/pranavxc)\ **Post date:** [November 17, 2022, 4:55am UTC](https://community.nocodb.com/t/development-build-failed/721/4 "2022-11-17T04:55:10Z")
Can you share the steps you followed? Also ensure, required ports are available - 8080 for backend and 3000 for frontend, if you had ran the setup as is. ---
**Author:** ![ramnalawade1986](https://avatars.discourse-cdn.com/v4/letter/r/e79b87/32.png) [@ramnalawade1986](https://community.nocodb.com/u/ramnalawade1986)\ **Post date:** [November 17, 2022, 5:19am UTC](https://community.nocodb.com/t/development-build-failed/721/5 "2022-11-17T05:19:23Z")
Yes both ports are open . I followed the same step as written in article. > **[Development setup](https://docs.nocodb.com/engineering/development-setup/)** > > How to set-up your development environment ---
**Author:** ![pranavxc](https://avatars.discourse-cdn.com/v4/letter/p/53a042/32.png) [@pranavxc](https://community.nocodb.com/u/pranavxc)\ **Post date:** [November 17, 2022, 5:20am UTC](https://community.nocodb.com/t/development-build-failed/721/6 "2022-11-17T05:20:58Z")
Can you delete the following folders in `pakchages/nc-gui` and rerun the front end? - `.nuxt` - `node_modules/.vite` Although try it in the Cognito window as well. ---
**Author:** ![ramnalawade1986](https://avatars.discourse-cdn.com/v4/letter/r/e79b87/32.png) [@ramnalawade1986](https://community.nocodb.com/u/ramnalawade1986)\ **Post date:** [November 17, 2022, 5:35am UTC](https://community.nocodb.com/t/development-build-failed/721/7 "2022-11-17T05:35:16Z")
No Luck, same error in Cognito mode ---
**Author:** ![pranavxc](https://avatars.discourse-cdn.com/v4/letter/p/53a042/32.png) [@pranavxc](https://community.nocodb.com/u/pranavxc)\ **Post date:** [November 17, 2022, 5:36am UTC](https://community.nocodb.com/t/development-build-failed/721/8 "2022-11-17T05:36:50Z")
So in browser nothing is getting loaded, right? ---
**Author:** ![ramnalawade1986](https://avatars.discourse-cdn.com/v4/letter/r/e79b87/32.png) [@ramnalawade1986](https://community.nocodb.com/u/ramnalawade1986)\ **Post date:** [November 17, 2022, 5:37am UTC](https://community.nocodb.com/t/development-build-failed/721/9 "2022-11-17T05:37:34Z")
yes, same error Failed to load module script: Expected a JavaScript module script but the server responded with a MIME type of “text/html”. Strict MIME type checking is enforced for module scripts per HTML spec. ---
**Author:** ![pranavxc](https://avatars.discourse-cdn.com/v4/letter/p/53a042/32.png) [@pranavxc](https://community.nocodb.com/u/pranavxc)\ **Post date:** [November 17, 2022, 5:40am UTC](https://community.nocodb.com/t/development-build-failed/721/10 "2022-11-17T05:40:18Z")
Ok thanks for confirming, I will try to reproduce the same in my Linux machine later 👍 ---
**Author:** ![ramnalawade1986](https://avatars.discourse-cdn.com/v4/letter/r/e79b87/32.png) [@ramnalawade1986](https://community.nocodb.com/u/ramnalawade1986)\ **Post date:** [November 17, 2022, 5:40am UTC](https://community.nocodb.com/t/development-build-failed/721/11 "2022-11-17T05:40:39Z")
ok, thanks @pranavxc ---
**Author:** ![ramnalawade1986](https://avatars.discourse-cdn.com/v4/letter/r/e79b87/32.png) [@ramnalawade1986](https://community.nocodb.com/u/ramnalawade1986)\ **Post date:** [November 17, 2022, 1:54pm UTC](https://community.nocodb.com/t/development-build-failed/721/12 "2022-11-17T13:54:03Z")
any update or do we have earlier build which is working ---
**Author:** ![pranavxc](https://avatars.discourse-cdn.com/v4/letter/p/53a042/32.png) [@pranavxc](https://community.nocodb.com/u/pranavxc)\ **Post date:** [November 20, 2022, 6:20am UTC](https://community.nocodb.com/t/development-build-failed/721/13 "2022-11-20T06:20:34Z")
Sorry for the delay, I was busy with some other work. Possibly I will check it today 👍 ---
**Author:** ![ramnalawade1986](https://avatars.discourse-cdn.com/v4/letter/r/e79b87/32.png) [@ramnalawade1986](https://community.nocodb.com/u/ramnalawade1986)\ **Post date:** [November 20, 2022, 6:32am UTC](https://community.nocodb.com/t/development-build-failed/721/14 "2022-11-20T06:32:59Z")
thanks @pranavxc , we have identify the issue, it was with node version. Multiple installation of node was causing this issue. ---
**Author:** ![pranavxc](https://avatars.discourse-cdn.com/v4/letter/p/53a042/32.png) [@pranavxc](https://community.nocodb.com/u/pranavxc)\ **Post date:** [November 20, 2022, 6:36am UTC](https://community.nocodb.com/t/development-build-failed/721/15 "2022-11-20T06:36:25Z")
Glad to know it got fixed 👍 . I hope it works without any issues now. ---
**Author:** ![ramnalawade1986](https://avatars.discourse-cdn.com/v4/letter/r/e79b87/32.png) [@ramnalawade1986](https://community.nocodb.com/u/ramnalawade1986)\ **Post date:** [November 20, 2022, 6:48am UTC](https://community.nocodb.com/t/development-build-failed/721/16 "2022-11-20T06:48:35Z")
Also, error seems like NC\_BACKEND\_URL , when i set this in NC\_BACKEND\_URL=[http://api.com](http://api.com) that env.mjs error start coming, Can you let me know where i can set this url without env ---
**Author:** ![pranavxc](https://avatars.discourse-cdn.com/v4/letter/p/53a042/32.png) [@pranavxc](https://community.nocodb.com/u/pranavxc)\ **Post date:** [November 20, 2022, 7:58am UTC](https://community.nocodb.com/t/development-build-failed/721/17 "2022-11-20T07:58:11Z")
Try `NUXT_PUBLIC_NC_BACKEND_URL` ---
**Author:** ![ramnalawade1986](https://avatars.discourse-cdn.com/v4/letter/r/e79b87/32.png) [@ramnalawade1986](https://community.nocodb.com/u/ramnalawade1986)\ **Post date:** [November 20, 2022, 8:51am UTC](https://community.nocodb.com/t/development-build-failed/721/18 "2022-11-20T08:51:42Z")
yes, it works…thanks