I'm running QUnit tests and Instambul coverage reporting via Grunt on a new machine and getting a nasty PhantomJS error. The tests have run fine in the past. QUnit works fine in the browser. I'm using grunt-qunit-istanbul to run the tests.

• Perhaps a version compatibility issue?
• Perhaps a missing dependency that I had globally install previously?

Here's the error messsage...

PhantomJS threw an error:ERROR
>> 0 [ '' ]
Warning: PhantomJS exited unexpectedly with exit code null. Use --force to continue.

This look familiar, or mean something more, to anyone?