ModuleNotFoundError：没有名为“numpy.core._multiarray_umath”的模块（安装 TensorFlow 时）

Question

I am following this tutorial to install TensorFlow( https://www.tensorflow.org/install/pip ), but in the last command:

python -c "import tensorflow as tf; tf.enable_eager_execution(); print(tf.reduce_sum(tf.random_normal([1000, 1000])))"

I get this result:

ModuleNotFoundError: No module named 'numpy.core._multiarray_umath'
ImportError: numpy.core.multiarray failed to import

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "<frozen importlib._bootstrap>", line 980, in _find_and_load
SystemError: <class '_frozen_importlib._ModuleLockManager'> returned a result with an error set
ImportError: numpy.core._multiarray_umath failed to import
ImportError: numpy.core.umath failed to import
2019-02-16 12:56:50.178364: F tensorflow/python/lib/core/bfloat16.cc:675] Check failed: PyBfloat16_Type.tp_base != nullptr

I have already installed numpy as you can see:

pip3 install numpy
Requirement already satisfied: numpy in c:\programdata\anaconda3\lib\site-packages (1.15.4)

So why do I get this error message and how can I fix it on Windows 10?

Answer 1

I upgraded numpy to 1.16.1 version and tried again the above command:

python -c "import tensorflow as tf; tf.enable_eager_execution(); print(tf.reduce_sum(tf.random_normal([1000, 1000])))"

and got this new result:

2019-02-16 13:12:40.611105: I tensorflow/core/platform/cpu_feature_guard.cc:141] Your CPU supports instructions that this TensorFlow binary was not compiled to use: AVX2
tf.Tensor(-1714.2305, shape=(), dtype=float32)

Answer 2

升级numpy解决报错

pip install numpy --upgrade

Answer 3

我有 numpy 1.16.2版本但它给出了同样的错误然后我尝试安装1.16.1并且它对我1.16.1 。

Answer 4

You need to force the upgrade numpy to the latest version.

pip install 'numpy==1.16' --force-reinstall

Hope this helps.

Answer 5

通过运行它来确保您使用的是 python 3.x

python3 -c "import tensorflow as tf; tf.enable_eager_execution(); print(tf.reduce_sum(tf.random_normal([1000, 1000])))"

Answer 6

I just upgraded my numpy from 1.14.0 to 1.17.0 by the following command on Ubuntu 18.10.

sudo python3.5 -m pip install numpy --upgrade

No import error then.

Answer 7

试试这个： pip install --upgrade --force-reinstall numpy