'node_modules/angular2-signaturepad/index.ts' not found

[DavidCaneiro]

tsconfig.json
Error 'myProject/node_modules/angular2-signaturepad/index.ts' not found

There is a file with the name 'index.d.ts' in the package of angular2-signaturepad, but not a file with the name 'index.ts'
This not affect (at least for me) the project. It still working fine.
Problem terminal (in vscode) show error and make node_modules appear red color.