Controller not a function, got undefined, while defining controllers globally

Question

I am writing a sample application using angularjs. i got an error mentioned below on chrome browser.

Error is

Error: [ng:areq] http://errors.

Answer 1

I got this problem because I had wrapped a controller-definition file in a closure:

(function() {
   ...stuff...
});

But I had forgotten to actually invoke that closure to execute that definition code and actually tell Javascript my controller existed. I.e., the above needs to be:

(function() {
   ...stuff...
})();

Note the () at the end.