Angular + Nx: Cannot resolve module aliases like @frontend/* even with correct tsconfig.paths

I'm working in an Nx monorepo with Angular, and I have module aliases set up in tsconfig.base.json like this:

"paths": {
"@frontend/*": ["apps/frontend/src/app/*"],
"@backend/*": ["apps/backend/src/app/*"]
}


Despite this, I'm getting errors like: Cannot find module '@frontend/...' or its corresponding type declarations.

I’ve checked that:

The files do exist.

The paths in tsconfig.base.json are correct.

The imports match the alias exactly.

I'm not missing tsconfig.json references in the apps/libs.

I've restarted the IDE, cleared node_modules, and reinstalled.

How can I fix this so the imports from @frontend/* work properly?

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