AttributeError: 'Conv2DLayer' object has no attribute 'flip_filters'

[ays0110]

Theano==0.8.2
Lasagne==0.2.dev1

Code:
val_prediction = lasagne.layers.get_output(network, input_var, deterministic=True)

Error:
File "../algorithms/python/env/lib/python3.6/site-packages/lasagne/layers/conv.py", line 611, in convolve filter_flip=self.flip_filters) AttributeError: 'Conv2DLayer' object has no attribute 'flip_filters'

Any insight into what I might be doing wrong, or if I'm missing something in my installation?

[f0k]

The flip_filters attribute was added on December 16, 2015 in commit 0ce713f. Any chance you're using an unpickled model from a very old Lasagne version?