Error: Argument is not a function, got undefined

Question

Using AngularJS with Scala Play, I\'m getting this error.

Error: Argument \'MainCtrl\' is not a function, got undefined

I\'m try

Answer 1

This seriously took me 4 HOURS (including endless searches on SO) but finally I found it: by mistake (unintentionally) I added a space somewhere.

Can you spot it?

angular.module('bwshopper.signup').controller('SignupCtrl ', SignupCtrl);

So ... 4 hours later I saw that it should be:

angular.module('bwshopper.signup').controller('SignupCtrl', SignupCtrl);

Almost impossible to see with just the naked eye.

This stresses the vital importance of revision control (git or whatever) and unit/regression testing.