Error when checking target: ValueError: expected regression to have shape (None, None, 4)

I’m trying to train with my own dataset in a csv but I get this: Epoch 1/20 Traceback (most recent call last):

File "examples/train_csv.py", line 117, in <module>
  keras.callbacks.ReduceLROnPlateau(monitor='loss', factor=0.1, patience=2, verbose=1, mode='auto', epsilon=0.0001, cooldown=0, min_lr=0),
File "/home/Team09/Desktop/SOEN321/lib/python3.6/site-packages/keras/legacy/interfaces.py", line 87, in wrapper
  return func(*args, **kwargs)
File "/home/Team09/Desktop/SOEN321/lib/python3.6/site-packages/keras/engine/training.py", line 2114, in fit_generator
  class_weight=class_weight)
File "/home/Team09/Desktop/SOEN321/lib/python3.6/site-packages/keras/engine/training.py", line 1826, in train_on_batch
  check_batch_axis=True)
File "/home/Team09/Desktop/SOEN321/lib/python3.6/site-packages/keras/engine/training.py", line 1411, in _standardize_user_data
  exception_prefix='target')
File "/home/Team09/Desktop/SOEN321/lib/python3.6/site-packages/keras/engine/training.py", line 153, in _standardize_input_data
  str(array.shape))
ValueError: Error when checking target: expected regression to have shape (None, None, 4) but got array with shape (32, 67995, 5)

[hgaiser]

That is a bug in the latest version of Keras. Try using Keras 2.0.9.

Side note: could you leave this issue open? There are a lot of people experiencing this problem. Will help them to find it.

[hgaiser]

This should be fixed with keras 2.1.2, closing this issue.