Yo angular error?

I installed Yeoman on my Mac (OS X 10.9) and I am trying to run yo angular.

I get the following error:

path.js:384
    throw new TypeError('Arguments to path.join must be strings');
          ^
TypeError: Arguments to path.join must be strings
at exports.join (path.js:384:15)
at Generator.<anonymous> (/usr/local/lib/node_modules/generator-angular/common/index.js:26:34)
at Generator.setupEnv (/usr/local/lib/node_modules/generator-angular/common/index.js:29:3)
at /usr/local/lib/node_modules/generator-angular/node_modules/yeoman-generator/lib/base.js:387:14
at processImmediate [as _immediateCallback] (timers.js:374:17)

Software versions

• node 0.11.13
• npm 1.4.26
• yo 1.1.2
• bower 1.3.9
• grunt-cli 0.1.13

yo also says there is an update for yo (1.2.1) but it won't install with npm update -g yo

I also tried installing on another machine with the same result (following the yeoman guide http://yeoman.io/codelab/setup.html)

If anyone could help me out I would be very thankful.