1061: Call to a possibly undefined method

1

I have a test class:

package {
public class Test {
public function Test() {
}

    public function testMe():String {
        return 'Tested';
    }
}

}

Which I include thussly:

import Test;

But when I call

trace(Test.testMe());

It says:

“1061: Call to a possibly undefined method testMe through a reference with static type Class.”

It works if I do:

var asdf:Test = new Test();
trace (asdf.testMe());

I don’t understand why I have to instantiate the class for it to work? I have a tween library called TweenLite which I don’t have to instantiate to use, and as far as I can tell the class syntax is the same.

Any help would be appreciated.