error TS: TypeScript errors stop the build

What this error means

The build script type-checks the code (tsc) and found errors. The bundler alone might build, but the script fails first.

Why it happens

The build script runs the TypeScript compiler before bundling. tsc found type errors, so the script exits even if the bundler could have emitted JavaScript.

The message tools print

src/pages/Index.tsx(12,7): error TS2322: Type 'string' is not assignable to type 'number'.

How to fix it

1. Fix the errors listed — each line gives the file, line and column.
2. Or paste this log into your AI builder and ask it to fix them.

Check a log that shows this

Paste the failing step into the build error explainer. It matches this message, and any others in the same log, in your browser. Nothing is uploaded.

Other Web build errors

• npm ci needs an existing package-lock.json
• npm ci: lockfile is out of sync with package.json
• npm ERESOLVE unable to resolve dependency tree
• JavaScript heap out of memory
• Rollup failed to resolve import
• Could not find the web assets directory
• Capacitor: Invalid App ID