Error in a indirectly imported class causes wrong error message

[ThomasBleijendaal]

If you are trying to use a class which has an error (like $blah = new ClassWithANastyError()), you'll get an error message stating "ClassWithANastyError has not been imported". This only occurs if you Library::import() a class which Library::import()s the erroneous class file. (think of an erroneous *Input.class.php which is indirectly imported via Form.class.php).
If you directly Library::import() the erroneous file, you'll get the right error message (like a PHP parse error message).