Visual Studio cannot find Typescript declaration file 'source-map'

[Edminsson]

I'm getting this error in Visual Studio 2019 :

Error TS6053 File 'path-to-my-project/node_modules/source-map/source-map' not found.
The file is in the program because: Root file specified for compilation

The cause of this error seems to be this line in package.json:
"typings": "source-map",
If i change it to
"typings": "source-map.d.ts",
then everythings works fine.

[oliverjam]

Looks like this was fixed in 2018. I had the same error; one of my dependencies depends on a much older version of source-map. It's probably fixable by using "overrides" in your package.json (as of npm version 8) to set a newer version of this library.

[jordanbtucker]

For me, this issue was occurring because @babel/generator still uses source-map@^0.5.0. They actually bumped the version two years ago, but then reverted it due to a regression (rather than fixing their codebase to work with the new version of source-map).

See: babel/babel#12025

If you run npm ls source-map you can see the tree of which packages are dependent upon it. Here's what mine looks like:

└─┬ [email protected]
  ├─┬ [email protected]
  │ └─┬ @babel/[email protected]
  │   ├─┬ @babel/[email protected]
  │   │ └── [email protected] deduped
  │   └── [email protected]
  ├─┬ [email protected]
  │ ├─┬ [email protected]
  │ │ └─┬ @babel/[email protected]
  │ │   ├─┬ @babel/[email protected]
  │ │   │ └── [email protected] deduped
  │ │   └── [email protected]
  │ └─┬ [email protected]
  │   └── [email protected]
  └─┬ [email protected]
    └── [email protected]

[jordanbtucker]

Maybe the fix can be backported into ^0.5 and ^0.6. I think this repo would need to create a branch for each of those minor versions before I could create a PR for them though.