Yeoman: EACCES error running karma unit test for Angularjs

Question

I'm following the sample Yeoman workflow listed on yeoman.io:

npm install -g generator-angular generator-karma  # install generators
yo angular                     # scaffold out a AngularJS project
bower install angular-ui       # install a dependency for your project from Bower
*grunt test                     # test your app
grunt server                   # preview your app
grunt                          # build the application for deployment

Everything works great except the grunt test command:

C:\yeoman2>grunt test

(logging omitted for brevity)

Running "connect:test" (connect) task
Starting connect web server on localhost:9000.

Running "karma:unit" (karma) task
Fatal error: listen EACCES

I haven't updated my gruntfile or made any other modifications to the configs. Has anyone seen this EACCESS error before? I'm on Windows 8, with a fresh node install.

Answer 1

This was happening because the karma server was running on port 8080. I changed it (in karma.conf.js) to 9999 and all is well.