AttributeError: module 'keras.backend' has no attribute '_BACKEND'

[wtl2282473163]

When running kitti_evalulate.py, there is an error followed by this: if K._BACKEND == 'theano': AttributeError: module 'keras.backend' has no attribute '_BACKEND' . How can I fix this?

[craymichael]

Replace K._BACKEND with K.backend() in prednet.py and you should be good