Open up WebStorm and select the configure option:
Navigate to Plugins and double click:
Navigate to the bottom of the panel and select the “Browse Repositories..” button. This spawns a new window. Double click on the Angular.js plugin:
Now, click on “Open Directory” and point to the directory with your seed project.
and selected the “Ignore VCS root errors” option, which gets rid of the pesky error alert.
And there you have it, get to work.
Here’s an excellent tutorial on how to install and configure Apache, MySql, PHP and PhpMyAdmin on OSX 10.8 (Mountain Lion)
OH JUST IN CASE:
On the Mac, you have to hold down the Function key while pressing the Delete key. Happy coding.