我在跑PaddleHub 文本分类教程时，执行cls_task.finetune_and_eval()报错

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Error Message Summary:
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InvalidArgumentError: The Tensor in the increment Op's Input Variable X(@LR_DECAY_COUNTER@) is not initialized.
[Hint: Expected t->IsInitialized() == true, but received t->IsInitialized():0 != true:1.] at (/paddle/paddle/fluid/framework/operator.cc:1289)
[operator < increment > error]

我该怎么办？