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NullTypeGradError: tensor.grad encountered a NaN. This variable is Null because the grad method for input 0 (Reshape{2}.0) of the UndefinedGrad op is mathematically undefined. #2

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ghost opened this issue Dec 23, 2017 · 1 comment
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NullTypeGradError: tensor.grad encountered a NaN. This variable is Null because the grad method for input 0 (Reshape{2}.0) of the UndefinedGrad op is mathematically undefined. #2

ghost opened this issue Dec 23, 2017 · 1 comment

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@ghost
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ghost commented Dec 23, 2017 •
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@ghost ghost changed the title local variable 'cost_ent' in file run.py might be referenced before assignment NullTypeGradError: tensor.grad encountered a NaN. This variable is Null because the grad method for input 0 (Reshape{2}.0) of the UndefinedGrad op is mathematically undefined. Dec 24, 2017
@czhang99
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Same problem. Fixed after I downgrade Theano from 1.0 to 0.9.0

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@czhang99