App failed to publish: Build failed because of webpack errors

General
1

Please, does anyone has solution or has exoerience the reason why my app cant published. I got “Build failed because of webpack errors.” despite several efforts made to correct it

2

Hello! Oh, that’s one of the most frustrating errors to get. :sad_but_relieved_face: “Webpack errors” can feel so vague, and it’s terrible when you’re stuck and can’t publish.

The good news is that the message “Build failed because of webpack errors” is just the summary of the problem. The real, specific error is hidden in your build logs.

Webpack is the tool that bundles all your app’s code (JavaScript, CSS, etc.) into the final files. The error means it failed somewhere in that process. We just need to find the exact line.

:detective: How to Find the Real Error

The logs will tell us exactly what’s wrong (e.g., “Module not found: ‘react-toastify’”, “Syntax error in index.js”, etc.).

Here is how to find your build logs:

  1. Go to your Firebase Console (console.firebase.google.com).

  2. In the main menu, go to Build > App Hosting.

  3. You should see your App Hosting backend listed. Click on it to open its dashboard.

  4. This will show you a history of your deployments (“rollouts”). The one that failed will be at the top, marked in red.

  5. Click the three-dot menu (⋮) on that failed rollout and select “View build logs”.

:face_with_monocle: What to Look For in the Logs

Once you open the logs, scroll down. The real error message is usually near the bottom. Look for lines that start with Error: or mention a specific file or package.

The most common webpack errors are:

  • Missing Package: Module not found: Error: Can't resolve 'some-package-name'

    • Fix: You need to install the missing package. In your Studio terminal, run npm install some-package-name.

  • Syntax/Type Error: Failed to compile. followed by a TypeScript or JavaScript error in one of your files (like src/app/page.tsx).

    • Fix: You’ll need to fix that specific error in your code.

  • Configuration Error: Something is wrong in your next.config.js or other config files.

:folded_hands: How You Can Help Us Help You

Please open those build logs, find the specific error message (the Module not found or Failed to compile part), and paste that error here.

Once we see the real error, we can almost certainly get you a fix in minutes!