build error

[rose belfry]

I'm trying to build my project but i get the following error:

Export encountered errors on following paths:
/_error: /404
/_error: /500

[rain magnet]

Hi @rose belfry. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave:

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It looks like you're encountering a common issue during the build process where the export encounters errors on the paths /_error: /404 and /_error: /500. This issue has been reported in several instances and can be due to various reasons. Here are some steps and considerations to help you troubleshoot and resolve this issue:

Common Causes and Solutions

1. Check for Null or Undefined Contexts:

   • One common cause is attempting to read properties of null or undefined in your components. Ensure that all contexts and hooks are properly initialized and used.
   • Example error: TypeError: Cannot read properties of null (reading 'useContext') (Source: Issue 44294 (https://github.com/vercel/next.js/issues/44294), Issue 65294 (https://github.com/vercel/next.js/issues/65294)).

2. Custom Error Pages:

   • Ensure that your custom error pages (_error.js or _error.tsx) do not use Next.js Data Fetching methods like getStaticProps or getServerSideProps, as these are not supported for error pages.
   • Reference: Next.js Custom Errors Caveats (https://nextjs.org/docs/pages/building-your-application/routing/custom-error#caveats).

3. Check Next.js Configuration:

   • Verify your next.config.js or next.config.ts for any experimental options or misconfigurations that might be causing the issue.
   • Example: An issue was reported when using experimental options in next.config.ts (Source: Issue 64866 (https://github.com/vercel/next.js/issues/64866)).

4. Version Compatibility:
   • Ensure that you are using compatible versions of next, react, and react-dom. Sometimes upgrading or downgrading to a stable version can resolve the issue.
   • Example: Users reported issues when upgrading from Next.js 13.4.19 to 14.0.1 and found that downgrading resolved the issue (Source: Issue 57277 (https://github.com/vercel/next.js/issues/57277)).

Example Troubleshooting Steps

1. Check for Null Contexts:

   // Ensure that all contexts are properly initialized
   const MyComponent = () => {
     const contextValue = useContext(MyContext);
     if (!contextValue) {
       // Handle the case where context is null or undefined
       return <div>Loading...</div>;
     }
     return <div>{contextValue.someProperty}</div>;
   };
   

2. Review Custom Error Pages:

   // _error.js
   function Error({ statusCode }) {
     return (
       <p>
         {statusCode
           ? `An error ${statusCode} occurred on server`
           : 'An error occurred on client'}
       </p>
     );
   }
   
   Error.getInitialProps = ({ res, err }) => {
     const statusCode = res ? res.statusCode : err ? err.statusCode : 404;
     return { statusCode };
   };
   
   export default Error;
   

3. Check Next.js Configuration:

   // next.config.js
   module.exports = {
     experimental: {
       // Ensure experimental options are correctly configured
     },
   };
   

If these steps do not resolve your issue, you may want to refer to the specific issues and discussions on GitHub for more detailed troubleshooting:

• Issue 44294 (https://github.com/vercel/next.js/issues/44294)
• [Issue 64866

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