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Module aliases don't work with multiple app routers

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Lonely Cat posted this in #help-forum
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Lonely CatOP
Problem: Nextjs doesnt want to let me import modules/functions from inside app router. I really hope theres a dumb fix to this im overlooking, major thanks ❤️

Error:
- ./src/app/(authentication)/auth/login/page.tsx
- Module not found: Can't resolve '@/app/(authentication)/_components/login'


src/app/(authentication)/auth/login/page.tsx:
import { LoginForm } from "@/app/(authentication)/_components/login";

const LoginPage = () => {
  return (
    <LoginForm />
  );
}

export default LoginPage;


src/app/(authentication)/_components/login.tsx:
export const LoginForm = () = > {...}


tsconfig.json:
{
  "compilerOptions": {
    "lib": ["dom", "dom.iterable", "esnext"],
    "allowJs": true,
    "skipLibCheck": true,
    "strict": true,
    "noEmit": true,
    "esModuleInterop": true,
    "module": "esnext",
    "moduleResolution": "bundler",
    "resolveJsonModule": true,
    "isolatedModules": true,
    "jsx": "preserve",
    "incremental": true,
    "plugins": [
      {
        "name": "next"
      }
    ],
    "paths": {
      "@/*": ["./src/*"]
    }
  },
  "include": ["next-env.d.ts", "next-auth.d.ts", "**/*.ts", "**/*.tsx", ".next/types/**/*.ts"],
  "exclude": ["node_modules"]
}
Answered by Lonely Cat
No worries bro, thanks for replying, but the issue was with my nextjs version. I bumped to 14.2.6 and everything worked lol.
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5 Replies

i compared my regular tsconfig.json file with yours and the one that differed is the moduleResolution (you have it set as "bundler"), whilst I have it set as "node". could you try changing that to "node" to see whether it solves the problem?
i don't have much experience about this moduleResolution field, maybe if someone could drop-in a quick explanation about it would be pretty helpful
this doc seemed to explain this quite well https://www.typescriptlang.org/docs/handbook/modules/theory.html#module-resolution
@iyxan23 huh that's odd, since the `page.tsx` file shares the same `src/app/(authentication)`, might as well use `../../components/login` in the meantime, and see if that worked
Lonely CatOP
No worries bro, thanks for replying, but the issue was with my nextjs version. I bumped to 14.2.6 and everything worked lol.
Answer