'rootDir' is expected to contain all source files.

[aj92singh]

Severity Code Description Project File Line Suppression State
Error TS6059 Build:File 'Portal/src/Portal1/node_modules/angular2-busy/index.ts' is not under 'rootDir' 'Portal/src/Portal1/app'. 'rootDir' is expected to contain all source files.

[AndreyPatseiko]

have the same problem

[kondi0]

Same here:

/node_modules/angular2-busy/index.ts' is not under 'rootDir'

[stpa81]

Did you find a solution for this problem?

[Arikael]

It is still a problem.
Maybe related to this?
microsoft/TypeScript#6964
https://github.com/ag-grid/ag-grid-angular/issues/108#issuecomment-269863800

I just manually deleted index.ts from /node_modules and everything works (described in the second link above)
The problem is that angular2-busy is published with the TypeScript files which isn't recommended even for TypeScript projects.
I assume the solution would be to not publish any .ts files.

EDIT:
Just import from angular2-busy/build and not from angular2-busy.
This fixes it.