Hello guys how are you? Welcome back on my blog Therichpost. Today in this post I am going to share How to find problems in the angular build more easily?
Angular 19 came. If you are new then you must check below two links:
Now guys here is the complete code snippet and please follow carefully:
Finding and debugging problems in an Angular build can be challenging, but using the right tools and techniques can make it easier. Here’s a structured approach to diagnosing and fixing Angular build issues efficiently:
1. Enable Detailed Logging in the Angular CLI
Run the build with verbose logging to get more details on what’s happening:
ng build --verbose
This will give you more context about any errors or performance issues.
2. Check Console Errors and Logs
If your build fails, look at the terminal output carefully. Some common error types:
- Module not found – Missing imports or incorrect paths.
- TypeScript errors – Incompatible types or missing types.
- Webpack issues – Dependencies or loaders missing.
For runtime errors, check the browser console (F12 > Console in Chrome/Edge).
3. Inspect Dependency Issues
Sometimes dependencies cause issues. Run:
npm ls --depth=0
If you see peer dependency warnings, try:
npm dedupe
npm install
Or delete and reinstall:
rm -rf node_modules package-lock.json
npm install
4. Lint Your Code
Run:
ng lint
This will catch common errors before building.
5. Analyze Webpack Output
If your build is slow or breaking, check what Webpack is doing:
ng build --stats-json
Then analyze it with:
npx webpack-bundle-analyzer dist/stats.json
This helps find oversized dependencies and slow modules.
6. Debug TypeScript Errors
Run the build with full TypeScript debugging:
ng build --source-map=true
Then, use browser developer tools to trace issues back to your source files.
7. Check for Circular Dependencies
Circular dependencies can cause subtle issues. Check for them with:
npx madge --circular src/
If found, refactor your imports to remove them.
8. Fix Memory Issues in Large Builds
For out of memory (OOM) errors, increase Node.js memory:
node --max_old_space_size=8192 node_modules/@angular/cli/bin/ng build
9. Run in Watch Mode for Faster Debugging
Instead of rebuilding every time, use:
ng build --watch
This helps catch incremental issues quickly.
10. Clean and Reset the Build
If nothing else works, try a full reset:
rm -rf dist node_modules package-lock.json
npm cache clean --force
npm install
ng build --verbose
Bonus: Use Angular DevTools for Runtime Debugging
Install Angular DevTools from the Chrome Web Store to inspect change detection, component state, and application performance.
By following these steps, you can systematically identify and fix Angular build issues more easily. Let me know if you have a specific error message you need help with! 🚀 And Feel Free to comment below.
Ajay
Thanks