run error

[lijain]

InvalidArgumentError (see above for traceback): Cannot assign a device for operation 'dicriminator_train/discriminator/discriminator_unit/dense_layer_2/dense/bias/Adam_1': Operation was explicitly assigned to /device:GPU:0 but available devices are [ /job:localhost/replica:0/task:0/cpu:0 ]. Make sure the device specification refers to a valid device.
[[Node: dicriminator_train/discriminator/discriminator_unit/dense_layer_2/dense/bias/Adam_1 = VariableV2_class=["loc:@discriminator/discriminator_unit/dense_layer_2/dense/bias"], container="", dtype=DT_FLOAT, shape=[1], shared_name="", _device="/device:GPU:0"]]

[pipichensir]

I have the same error