TypeError: Cannot call method 'toLowerCase' of undefined

[crowne]

Hi,

I was following the instructions on README.md,
The version installed was [email protected]
after entering $slush anglify
I got the following error:

c:\Program Files\nodejs\node_modules\slush-anglify\slushfile.js:60
var username = string.toLowerCase();
^
TypeError: Cannot call method 'toLowerCase' of undefined
at formatUsername (c:\Program Files\nodejs\node_modules\slush-anglify\slushfile.js:60:25)
at c:\Program Files\nodejs\node_modules\slush-anglify\slushfile.js:38:15
at Object. (c:\Program Files\nodejs\node_modules\slush-anglify\slushfile.js:41:3)
at Module._compile (module.js:456:26)
at Object.Module._extensions..js (module.js:474:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)
at Module.require (module.js:364:17)
at require (module.js:380:17)
at Liftoff.handleArguments (c:\Program Files\nodejs\node_modules\slush\bin\slush.js:90:3)