我安装了Tensorflow gpu版本以及CUDA 9.1和python 3.6.5。 但是，在导入tensorflow-gpu之后，出现以下错误：

Question

追溯（最近一次通话）：

  File "C:\Users\ranji\AppData\Local\Programs\Python\Python36\lib\site-packages\tensorflow\python\platform\self_check.py", line 75, in preload_check
    ctypes.WinDLL(build_info.cudart_dll_name)
  File "C:\Users\ranji\AppData\Local\Programs\Python\Python36\lib\ctypes\__init__.py", line 348, in __init__
    self._handle = _dlopen(self._name, mode)
OSError: [WinError 126] The specified module could not be found

在处理上述异常期间，发生了另一个异常：

Traceback (most recent call last):
  File "C:/Users/ranji/AppData/Local/Programs/Python/Python36/ts1.py", line 1, in <module>
    import tensorflow as tf
  File "C:\Users\ranji\AppData\Local\Programs\Python\Python36\lib\site-packages\tensorflow\__init__.py", line 24, in <module>
    from tensorflow.python import pywrap_tensorflow  # pylint: disable=unused-import
  File "C:\Users\ranji\AppData\Local\Programs\Python\Python36\lib\site-packages\tensorflow\python\__init__.py", line 49, in <module>
    from tensorflow.python import pywrap_tensorflow
  File "C:\Users\ranji\AppData\Local\Programs\Python\Python36\lib\site-packages\tensorflow\python\pywrap_tensorflow.py", line 30, in <module>
    self_check.preload_check()
  File "C:\Users\ranji\AppData\Local\Programs\Python\Python36\lib\site-packages\tensorflow\python\platform\self_check.py", line 82, in preload_check
    % (build_info.cudart_dll_name, build_info.cuda_version_number))
ImportError: Could not find 'cudart64_90.dll'. TensorFlow requires that this DLL be installed in a directory that is named in your %PATH% environment variable. Download and install CUDA 9.0 from this URL: https://developer.nvidia.com/cuda-toolkit

Answer 1

目前Tensorflow仅支持CUDA 9.0

但是，您已经安装了CUDA 9.1。 您现在有两个选择：

• 选项1：您从源代码编译Tensorflow，然后启用对CUDA版本9.1的支持

• 选项2：您安装CUDA 9.0，然后等待直到Tensorflow支持CUDA 9.1

我经历了同样的痛苦，并决定安装CUDA 9.0。 这可能不太麻烦。

另请参阅GitHub上的此问题，以了解Tensorflow对CUDA 9.1的当前支持状态以及如何从源代码编译Tensorflow。