Tensorflow遇到的问题_onmessage error occurred during error handling, gi

import tensorflow as tf时出错

错误原因：

ImportError: DLL load failed: 找不到指定的模块。
ImportError: numpy.core.multiarray failed to import

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<frozen importlib._bootstrap>", line 967, in _find_and_load
SystemError: PyEval_EvalFrameEx returned a result with an error set
ImportError: numpy.core._multiarray_umath failed to import
ImportError: numpy.core.umath failed to import
2019-10-17 15:42:18.350842: F tensorflow/python/lib/core/bfloat16.cc:675] Check failed: PyBfloat16_Type.tp_base != nullptr
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出错原因：
numpy版本需要更新

pip install numpy --upgrade
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但是，显示如下，已是最新版本

Requirement already up-to-date: numpy in d:\anaconda\envs\tensorflow\lib\site-packages (1.17.2)
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解决方法：先卸掉已有的numpy再更新，问题解决！

pip uninstall numpy
python -m pip install --upgrade numpy
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