Builder io completely unusable, cannot deploy localhost project npm run build

Technical Questions
21

That is amazing, I can now render static pages without constantly hiding /app , though modals partially work, weird if I directly upload to netlify nothing works at all, but when I use netlify cli, some function is restored. I will take a break for now and communicate tomorrow. I am happy at least some is visible now :smiley:

22

Hello, I don’t understand what happened.

I updated my site, because modals on mobile displayed incorrectly.
After modifying, I got:

C:\Users\AAA\Desktop\zgfp2>next build && next export
   ▲ Next.js 15.2.0
   - Environments: .env

   Creating an optimized production build ...
 ✓ Compiled successfully
 ✓ Linting and checking validity of types
 ✓ Collecting page data
Error occurred prerendering page "/_not-found". Read more: https://nextjs.org/docs/messages/prerender-error
TypeError: Cannot read properties of null (reading 'useContext')
    at t.useContext (C:\Users\AAA\Desktop\zgfp2\node_modules\next\dist\compiled\next-server\app-page.runtime.prod.js:124:6206)
    at R (C:\Users\AAA\Desktop\zgfp2\.next\server\chunks\891.js:5:18998)
    at nL (C:\Users\AAA\AppData\Roaming\npm\node_modules\next\dist\compiled\next-server\app-page.runtime.prod.js:76:46773)
    at nU (C:\Users\AAA\AppData\Roaming\npm\node_modules\next\dist\compiled\next-server\app-page.runtime.prod.js:76:48548)
    at nU (C:\Users\AAA\AppData\Roaming\npm\node_modules\next\dist\compiled\next-server\app-page.runtime.prod.js:76:64360)
    at nq (C:\Users\AAA\AppData\Roaming\npm\node_modules\next\dist\compiled\next-server\app-page.runtime.prod.js:76:67434)
    at nH (C:\Users\AAA\AppData\Roaming\npm\node_modules\next\dist\compiled\next-server\app-page.runtime.prod.js:76:65009)
    at nG (C:\Users\AAA\AppData\Roaming\npm\node_modules\next\dist\compiled\next-server\app-page.runtime.prod.js:76:70865)
    at nU (C:\Users\AAA\AppData\Roaming\npm\node_modules\next\dist\compiled\next-server\app-page.runtime.prod.js:76:60898)
    at nq (C:\Users\AAA\AppData\Roaming\npm\node_modules\next\dist\compiled\next-server\app-page.runtime.prod.js:76:67434)
Export encountered an error on /_not-found/page: /_not-found, exiting the build.
 ⨯ Next.js build worker exited with code: 1 and signal: null

I literally did nothing but use builder to change modal size. What’s happening?
I already cleaned the package json, modules and next folder

Screenshot 2025-03-01 205434
Screenshot 2025-03-01 205434349×407 23.8 KB

Screenshot 2025-03-01 205439
Screenshot 2025-03-01 205439344×435 33.5 KB

23

Hello @daedalus2,

Could you confirm if you are still seeing the last reported error?

24

Hello @daedalus2,

I wanted to check in to see if you’re still experiencing issues with building your app. If you are, please feel free to let us know—we’re happy to help!

Best regards,

1 Like
25

Hello Manish I get this error when doing ‘‘next build’’

26 
TypeError: Cannot read properties of null (reading 'useContext')
    at g (C:\Users\AAA\Downloads\chinese-app-template\.next\server\pages\_error.js:6:11953)
Error occurred prerendering page "/404". Read more: https://nextjs.org/docs/messages/prerender-error
TypeError: Cannot read properties of null (reading 'useContext')
    at exports.useContext (C:\Users\AAA\Downloads\chinese-app-template\node_modules\react\cjs\react.production.js:488:33)
    at g (C:\Users\AAA\Downloads\chinese-app-template\.next\server\pages\_error.js:6:11953)
    at renderWithHooks (C:\Users\AAA\AppData\Roaming\npm\node_modules\next\node_modules\react-dom\cjs\react-dom-server.edge.production.js:4189:18)
    at renderElement (C:\Users\AAA\AppData\Roaming\npm\node_modules\next\node_modules\react-dom\cjs\react-dom-server.edge.production.js:4327:14)
    at retryNode (C:\Users\AAA\AppData\Roaming\npm\node_modules\next\node_modules\react-dom\cjs\react-dom-server.edge.production.js:4871:16)
    at renderNodeDestructive (C:\Users\AAA\AppData\Roaming\npm\node_modules\next\node_modules\react-dom\cjs\react-dom-server.edge.production.js:4689:7)
    at renderNode (C:\Users\AAA\AppData\Roaming\npm\node_modules\next\node_modules\react-dom\cjs\react-dom-server.edge.production.js:5128:14)
    at renderChildrenArray (C:\Users\AAA\AppData\Roaming\npm\node_modules\next\node_modules\react-dom\cjs\react-dom-server.edge.production.js:5019:7)
    at retryNode (C:\Users\AAA\AppData\Roaming\npm\node_modules\next\node_modules\react-dom\cjs\react-dom-server.edge.production.js:4885:9)
    at renderNodeDestructive (C:\Users\AAA\AppData\Roaming\npm\node_modules\next\node_modules\react-dom\cjs\react-dom-server.edge.production.js:4689:7)
Export encountered an error on /_error: /404, exiting the build.
 ⨯ Next.js build worker exited with code: 1 and signal: null
27

Hello @daedalus2,

I couldn’t reproduce the same error on my end. Could you please update your code in a GitHub repository and share a link to a reproducible repo? This will help me investigate further.

Thank you