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Merge pull request #26142 from danaugrs:patch2

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PiperOrigin-RevId: 237336877
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TensorFlower Gardener 2019-03-07 15:27:47 -08:00
commit 90b561ef09
1 changed files with 2 additions and 1 deletions
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tensorflow/python/keras/optimizer_v2/optimizer_v2.py
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@ -358,6 +358,7 @@ class OptimizerV2(trackable.Trackable):
ValueError: In case any gradient cannot be computed (e.g. if gradient ValueError: In case any gradient cannot be computed (e.g. if gradient
function not implemented). function not implemented).
""" """
with backend.get_graph().as_default():
grads = gradients.gradients(loss, params) grads = gradients.gradients(loss, params)
if None in grads: if None in grads:
raise ValueError("An operation has `None` for gradient. " raise ValueError("An operation has `None` for gradient. "