title: Error while import tensorflow
body: <p>I was working with tensorflow and keras for a while, and I was using tensorflow==1.4.1 version with CUDA toolkit 8.0 and cudnn 5.1 and it was working perfectly fine. But recently I wanted to install tensorforce, which requires me to install tensorflow 1.5 +
  So I decided to install lates tensorflow-gpu==1.8.0 as well as CUDA toolkit 9.0 and 7.0.5 cudnn from nvidia's website. And as always I followed steps in official tensorflow documentation for installing tensorflow on windows. But I ended up getting this error when trying to import tensorflow. I have seen similar quetions, suggesting to install MS Visual Studio 2015, but it didn't work for me
  I tried uninstalling and installing again a couple of times. But unsuccefully.</p>
  
  <p>Here is my set up:<br>
  Windows 10<br>
  tensorflow-gpu == 1.8.0
  CUDA toolkit 9.0<br>
  CUDNN 7.0.5 (also tried using Cudnn 7.1)<br>
  virtual conda env with python 3.6.3<br>
  installed by: pip install --ignore-installed --upgrade tensorflow-gpu</p>
  
  <p>And I found a similar question which also hasn't been answered:
  <a href="https://stackoverflow.com/questions/50259280/error-while-importing-tensorflow-1-8#new-answer">Error while importing TensorFlow 1.8</a></p>
  
  <pre><code>Traceback (most recent call last):
    File "C:\Users\User\Anaconda3\envs\tensorflow\lib\site-packages\tensorflow\python\pywrap_tensorflow_internal.py", line 18, in swig_import_helper
      return importlib.import_module(mname)
    File "C:\Users\User\Anaconda3\envs\tensorflow\lib\importlib\__init__.py", line 126, in import_module
      return _bootstrap._gcd_import(name[level:], package, level)
    File "&lt;frozen importlib._bootstrap&gt;", line 994, in _gcd_import
    File "&lt;frozen importlib._bootstrap&gt;", line 971, in _find_and_load
    File "&lt;frozen importlib._bootstrap&gt;", line 955, in _find_and_load_unlocked
    File "&lt;frozen importlib._bootstrap&gt;", line 658, in _load_unlocked
    File "&lt;frozen importlib._bootstrap&gt;", line 571, in module_from_spec
    File "&lt;frozen importlib._bootstrap_external&gt;", line 922, in create_module
    File "&lt;frozen importlib._bootstrap&gt;", line 219, in _call_with_frames_removed
  ImportError: DLL load failed: Не найден указанный модуль.
  
  During handling of the above exception, another exception occurred:
  
  Traceback (most recent call last):
    File "C:\Users\User\Anaconda3\envs\tensorflow\lib\site-packages\tensorflow\python\pywrap_tensorflow.py", line 41, in &lt;module&gt;
      from tensorflow.python.pywrap_tensorflow_internal import *
    File "C:\Users\User\Anaconda3\envs\tensorflow\lib\site-packages\tensorflow\python\pywrap_tensorflow_internal.py", line 21, in &lt;module&gt;
      _pywrap_tensorflow_internal = swig_import_helper()
    File "C:\Users\User\Anaconda3\envs\tensorflow\lib\site-packages\tensorflow\python\pywrap_tensorflow_internal.py", line 20, in swig_import_helper
      return importlib.import_module('_pywrap_tensorflow_internal')
    File "C:\Users\User\Anaconda3\envs\tensorflow\lib\importlib\__init__.py", line 126, in import_module
      return _bootstrap._gcd_import(name[level:], package, level)
  ModuleNotFoundError: No module named '_pywrap_tensorflow_internal'
  
  During handling of the above exception, another exception occurred:
  
  Traceback (most recent call last):
    File "&lt;stdin&gt;", line 1, in &lt;module&gt;
    File "C:\Users\User\Anaconda3\envs\tensorflow\lib\site-packages\tensorflow\__init__.py", line 24, in &lt;module&gt;
      from tensorflow.python import *
    File "C:\Users\User\Anaconda3\envs\tensorflow\lib\site-packages\tensorflow\python\__init__.py", line 51, in &lt;module&gt;
      from tensorflow.python import pywrap_tensorflow
    File "C:\Users\User\Anaconda3\envs\tensorflow\lib\site-packages\tensorflow\python\pywrap_tensorflow.py", line 52, in &lt;module&gt;
      raise ImportError(msg)
  ImportError: Traceback (most recent call last):
    File "C:\Users\User\Anaconda3\envs\tensorflow\lib\site-packages\tensorflow\python\pywrap_tensorflow_internal.py", line 18, in swig_import_helper
      return importlib.import_module(mname)
    File "C:\Users\User\Anaconda3\envs\tensorflow\lib\importlib\__init__.py", line 126, in import_module
      return _bootstrap._gcd_import(name[level:], package, level)
    File "&lt;frozen importlib._bootstrap&gt;", line 994, in _gcd_import
    File "&lt;frozen importlib._bootstrap&gt;", line 971, in _find_and_load
    File "&lt;frozen importlib._bootstrap&gt;", line 955, in _find_and_load_unlocked
    File "&lt;frozen importlib._bootstrap&gt;", line 658, in _load_unlocked
    File "&lt;frozen importlib._bootstrap&gt;", line 571, in module_from_spec
    File "&lt;frozen importlib._bootstrap_external&gt;", line 922, in create_module
    File "&lt;frozen importlib._bootstrap&gt;", line 219, in _call_with_frames_removed
  ImportError: DLL load failed: Не найден указанный модуль.
  
  During handling of the above exception, another exception occurred:
  
  Traceback (most recent call last):
    File "C:\Users\User\Anaconda3\envs\tensorflow\lib\site-packages\tensorflow\python\pywrap_tensorflow.py", line 41, in &lt;module&gt;
      from tensorflow.python.pywrap_tensorflow_internal import *
    File "C:\Users\User\Anaconda3\envs\tensorflow\lib\site-packages\tensorflow\python\pywrap_tensorflow_internal.py", line 21, in &lt;module&gt;
      _pywrap_tensorflow_internal = swig_import_helper()
    File "C:\Users\User\Anaconda3\envs\tensorflow\lib\site-packages\tensorflow\python\pywrap_tensorflow_internal.py", line 20, in swig_import_helper
      return importlib.import_module('_pywrap_tensorflow_internal')
    File "C:\Users\User\Anaconda3\envs\tensorflow\lib\importlib\__init__.py", line 126, in import_module
      return _bootstrap._gcd_import(name[level:], package, level)
  ModuleNotFoundError: No module named '_pywrap_tensorflow_internal'
  </code></pre>