(tsconfig.json) including a not existing folder breaks the tsserver

[tillwolff]

intellisense, hover, etc are not working in visual studio code if a not existing folder is included by tsconfig.json

example project:
https://github.com/T-Wolff/bug-tsconfig-include-notexistingfolder

• Windows 10
• VSCode 1.7.1 | 1.8.0-insider
• Typescript 2.0.6 | 2.0.7 | 2.1.0-dev.20161107

1. start visual studio code
   
2. open Folder/Project: bug-tsconfig-include-notexistingfolder
   
3. npm install
   
4. open "./src/app.ts"
   
5. check if intellisense is working => yes it's working
   
6. close all .ts or .tsx files
   
7. open "./src/app.ts"
   
8. check if intellisense is working => nope its not
   
9. add folder "./notexistingfolder"
   
10. restart visual studio code
    
11. no problems
    

[mhegazy]

@zhengbli cna you take a look.

[Tragetaschen]

Sweet, thanks!