Please provide us with the following information:
Windows 7, 8 or 10. Linux (which distribution). Mac OSX (Yosemite? El Capitan?)
Windows 7
Please run
ng --version. If there's nothing outputted, please run in a Terminal:node --versionand paste the result here:
angular-cli: 1.0.0-beta.28.3
node: 6.9.5
os: win32 x64
@angular/common: 2.4.7
@angular/compiler: 2.4.7
@angular/core: 2.4.7
@angular/forms: 2.4.7
@angular/http: 2.4.7
@angular/platform-browser: 2.4.7
@angular/platform-browser-dynamic: 2.4.7
@angular/router: 3.4.7
@angular/cli: 1.0.0-beta.30
@angular/compiler-cli: 2.4.7
Was this an app that wasn't created using the CLI? What change did you do on your code? etc.
The app was copied from here : https://github.com/angular-starter-kit/ngx-starter-kit I don't know if it was created with the CLI or not.
Normally this include a stack trace and some more information.
the initial ng serve seem to work well, but when I start to edit files I've got the following looping over and over in the CLI :

and in the chrome console :

I was using visual studio code and it seem there is/was some similar issues with it (see https://github.com/angular/angular-cli/issues/2497 ). But the problem remain even when visual studio code is closed.
I'm behind a corporate proxy and I have to use cntlm in order to have the install command to download the dependencies. Also I have to run the command line as an admin (rigth clic on cmd.ewe / run as an adminsitrator) in order to have the permission to launch the serve command.
Thanks! We'll be in touch soon.
it turn out the antivirus (mcAffe) is messing with the files ... And I can't disable it on my machine :(
A bit late, but if anyone else encounter this issue, you can try a workaroung with the --poll option (https://github.com/angular/angular-cli/wiki/serve)
ng serve --poll 1000
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Most helpful comment
A bit late, but if anyone else encounter this issue, you can try a workaroung with the
--polloption (https://github.com/angular/angular-cli/wiki/serve)