ng build --watch doesn't work

Bug Report or Feature Request (mark with an x)

- [x ] bug report -> please search issues before submitting
- [ ] feature request

Versions.

@angular/cli: 1.3.0-beta.0 node: 6.10.3 os: linux x64 @angular/animations: 4.2.5 @angular/common: 4.2.5 @angular/compiler: 4.2.5 @angular/core: 4.2.5 @angular/forms: 4.2.5 @angular/http: 4.2.5 @angular/platform-browser: 4.2.5 @angular/platform-browser-dynamic: 4.2.5 @angular/router: 4.2.5 @angular/cli: 1.3.0-beta.0 @angular/compiler-cli: 4.2.5 @angular/language-service: 4.2.5

Repro steps.

1. Create your project on a shared folder (guest = centos 7, host= windows 7, provider = virtualbox)
2. run: ng build --watch -> first compilation is fine
3. modify a file in the project to force recompilation -> nothing happens

The log given by the failure.

No logs, nothing happens

Desired functionality.

Should recompile

Mention any other details that might be useful.

To summarize, the --watch functionality doesn’t seem to work on shared folders, which is painfull. I confirm that it works perfectly when run on the host directly. If I remember well, I have already had this kind of problem with typescript (which also have the --watch functionality), so it’s may be the same root cause. For information, when I encountered this problem on a previous projects with typescript, I fixed it by using the gulp.watch function. So if I’m right and the problem is the same, you could maybe consider using the same mechanism than gulp to watch files modifications.

Hope you’ll find a solution.

Regards