Discussion on: TypeScript + Yarn Workspace Monorepo

[Wise Introvert]

Great article. Can you please help me with this error: Could not find a declaration file for module '@my-organisation/common'. I followed your article to the teeth but can't seem to find a solution to this issue.

[t7yang]

You can check the node_modules folder first to make sure @my-organisation/common existed. Somehow after yarn install / update some packages just "disappear". If so, you can do a yarn install --force to force yarn install again.

[Aral Roca]

In my case I checked an exist inside the node_modules, but without the dist folder.

shared package tsconfig.json:

{
  "compilerOptions": {
    "declaration": true,
    "declarationMap": true,
    "sourceMap": true,
    "composite": true,
    "outDir": "dist",
    "rootDir": "src"
  },
  "include": [
    "src"
  ]
}

and shared package.json:

{
  "name": "shared",
  "version": "1.0.0",
  "license": "MIT",
  "main": "dist/index.js",
  "types": "dist/index.d.ts",
  "files": [
    "dist"
  ],
  "devDependencies": {
    "typescript": "4.9.5"
  }
}

Do you know why this can happen? Thanks!

[Aral Roca]

@t7yang I updated your example from typescript 3.8.3 to 4.9.5 and is not working either. Do you know how to fix it for TypeScript v.4.9.5?

[t7yang]

have you run the build cmd? you need to build at least once to generate the dist folder. the final solution is run the tsc in your shared folder.

[wiseintrovert]

Thanks!