I’m having trouble with my Angular project. When I run npm start or ng serve, it takes over a minute to start up. The console shows ‘Generating browser application bundles (phase: building)…’ which is unusually slow.
My package.json includes Angular 11 and various dependencies. The angular.json file has standard configurations for building and serving the app.
I’m seeing warnings like:
node_modules\canvg\lib\index.es.js depends on '@babel/runtime-corejs3/regenerator'. CommonJS or AMD dependencies can cause optimization bailouts.
I tried following Angular’s guide on configuring CommonJS dependencies, but it didn’t help. The warnings persist.
Has anyone experienced similar issues? Any ideas on how to speed up the development server startup time? I’m not sure why it’s generating production-like bundles during development.
I’ve encountered similar slowdowns in Angular projects before. One thing that helped me was updating to the latest version of Angular and its dependencies. Angular 11 is quite old now, and newer versions have significant performance improvements.
Another thing to check is your project’s size and complexity. Large projects with many modules and components can slow down the build process. Consider lazy loading modules where possible to reduce initial load times.
As for the CommonJS warnings, they’re usually not critical for development builds. You might want to review your dependencies and see if there are newer versions that support ES modules natively.
Lastly, try running ng serve with the --prod=false flag explicitly. This ensures you’re not accidentally triggering production builds during development. If the issue persists, you might need to dive deeper into your webpack configuration to optimize the build process.
hey, had similar issues. try clearing ur node_modules folder and npm cache, then reinstall dependencies. sometimes old/conflicting packages cause slowdowns.
also, check ur tsconfig.json for strict settings that might be slowing things down. loosenin em for dev can help.
I’ve been down this road before, and it can be frustrating. One thing that made a huge difference for me was switching to a solid-state drive (SSD) if you haven’t already. The read/write speeds can dramatically cut down build times.
Another trick I found helpful was increasing the Node.js heap size. You can do this by setting the NODE_OPTIONS environment variable before running ng serve, like this:
export NODE_OPTIONS=–max_old_space_size=8192
This gives Node more memory to work with, which can speed things up, especially for larger projects.
Also, have you tried using the --aot flag with ng serve? It can sometimes lead to faster rebuilds during development. Just be aware it might increase initial build time a bit.
Lastly, double-check your tsconfig.json. Strict mode and other compiler options can impact build performance. You might want to experiment with loosening some restrictions during development if speed is a priority.