[Regression]: tsconfig.json's compilerOptions.paths no longer working in 1.47

[mrmckeb]

Version

1.47.0

Steps to reproduce

1. Add paths to tsconfig.json

   {
     "compilerOptions": {
       "paths": {
         "#/*": ["./src/*"]
       }
     }
   }
   

2. Import something using that path, i.e. #/utils/my-util.

Expected behavior

This worked as expected in 1.46.

Actual behavior

Error:

Error [ERR_MODULE_NOT_FOUND]: Cannot find package '#/utils/my-util' imported from <path>/tests/my-test.ts

Additional context

I assume this is related to the tsconfig option in 1.47, but didn't dig into the issue yet sorry.

Environment

System:
  OS: macOS 14.6.1
  CPU: (8) arm64 Apple M3
  Memory: 256.58 MB / 24.00 GB
Binaries:
  Node: 20.14.0 - ~/.local/state/fnm_multishells/35649_1725599073952/bin/node
  npm: 10.7.0 - ~/.local/state/fnm_multishells/35649_1725599073952/bin/npm
  pnpm: 9.9.0 - ~/.local/state/fnm_multishells/35649_1725599073952/bin/pnpm
IDEs:
  VSCode: 1.93.0 - /usr/local/bin/code
Languages:
  Bash: 3.2.57 - /bin/bash

[dgozman]

@mrmckeb Could you please share a full repro? We need the project structure, package.json and tsconfig.json at least to make sure we understand your setup.

[nickdbush]

It looks like importing /package/index as /package is causing the problem.

Here's a minimal reproduction: https://github.com/nickdbush/playwright-repro

[rkhomi]

Error: Cannot find package '@src/modules' imported from /qa/Playwright/src/global/home.ts
same here

{
	"compilerOptions": {
		"outDir": "./dist",
		"target": "ES2022",
		"module": "esnext",
		"moduleResolution": "node",
		"esModuleInterop": true,
		"resolveJsonModule": true,
		"noUnusedParameters": true,
		"useDefineForClassFields": false,
		"types": ["node"],
		"noEmit": true,
		"allowJs": true,
		"baseUrl": "./",
		"paths": {
			"@src/*": ["src/*"],
			"@global/*": ["src/global/*"]
		}
	},
	"include": ["./src/**/*.ts", "./*.ts"]
}

[mrmckeb]

Sorry I didn't supply a repro @dgozman - thanks @nickdbush for beating me to it!