Keras 2.1.x incompatibilty

[aldder]

Upgrading keras to version 2.1.x it gives this error:

Starting training
Epoch 1/3000
Exception: Error when checking target: expected rpn_out_class to have shape (None, None, None, 9) but got array with shape (1, 56, 38, 18)
Exception: Error when checking target: expected rpn_out_class to have shape (None, None, None, 9) but got array with shape (1, 50, 38, 18)
Exception: Error when checking target: expected rpn_out_class to have shape (None, None, None, 9) but got array with shape (1, 43, 38, 18)
Exception: Error when checking target: expected rpn_out_class to have shape (None, None, None, 9) but got array with shape (1, 38, 38, 18)
...

[lucasjinreal]

Hi, I am currently unable to track this project, if you find any solutions, give me a pr directly! thanks for contribute!

[gloddream]

@aldder i get the same error ;
if keras not to version 2.1.x , do it work ?

[aldder]

It's working for keras==2.0.9

[LucasVandroux]

@aldder @gloddream I was having the same problem with python 3.4.3 and keras 2.1.1 but updating to keras 2.1.2 fixed the issue. Hope this can help🙂