From @OliverJAsh on September 30, 2017 16:20

I have a project with three folders, two of which are TS projects and the third of which is shared between them:

• shared
• service-worker (with tsconfig.json)
• browser (with tsconfig.json)

Both "browser" and "service-worker" depend on "shared".

However, when I open a file in "shared", I only see errors related to one of the tsconfig.jsons—usually this will be the tsconfig.json used for the file I navigated from previously.

It would be great if VSCode could aggregate all errors for the current file for all matching TS projects.

Copied from original issue: microsoft/vscode#35432