Cxx-generator "TranslationUnit' object has no attribute"

Hi
I followed the guide to generate the Test jsb at https://github.com/funkaster/cxx-generator.
But I keep getting the follwing error and can not figgure out what I did wrong?

.... Generating bindings for target spidermonkey

.... .... Processing section testandroid 


Exception ctypes.ArgumentError: "argument 1: <type 'exceptions.AttributeError'>: 'TranslationUnit' object has no attribute '_as_parameter_'" in <bound method TranslationUnit.__del__ of <clang.cindex.TranslationUnit object at 0x10638dc90>> ignored

thanks HP