DarkSide666
commented
8 years ago 
Probably that's a bug because this add-on is rather old and most likely deprecated.
Simple advice - don't use generators, they are evil type of coding :) It's much more faster to create empty templates for new class definitions and will in some rows of code than trying to find bugs and glitches in automatically generated code.
Also here: http://stackoverflow.com/questions/18132735/atk4-schema-generator-error
And yes, that's actually issue of atk-addons and should go here: https://github.com/atk4/atk4-addons
Missing argument 1 for Page_ModelGenerator::findModels(), called in C:\projects\wamp\atk4\atk4-addons\mvc\Page\ModelGenerator.php on line 15 and defined
findModels signature is: function findModels($dir, &$models, $prefix = null);
but you call it like this: $this->findModels();