安装Tensorflow-GPU时出错

Question

我正在尝试按照以下说明安装tensorflow和tensorflow-gpu：

https://www.tensorflow.org/install/install_windows#CommonInstallationProblems

我想我是正确地理解了它们，但是我似乎不能让它工作。如果我以Admin身份从CMD提示符运行它，两者似乎都安装成功。如果我只安装了tensorflow就停止了，它就能工作。但是一旦我也安装了tensorflow-gpu (尽管它似乎安装成功了)，当我尝试使用tensorflow时，我就会得到一个错误。

下面是我得到的错误：

Traceback (most recent call last):
  File "D:\Anaconda3\envs\Keras\lib\site-packages\tensorflow\python\pywrap_tensorflow_internal.py", line 18, in swig_import_helper
    return importlib.import_module(mname)
  File "D:\Anaconda3\envs\Keras\lib\importlib\__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 986, in _gcd_import
  File "<frozen importlib._bootstrap>", line 969, in _find_and_load
  File "<frozen importlib._bootstrap>", line 958, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 666, in _load_unlocked
  File "<frozen importlib._bootstrap>", line 577, in module_from_spec
  File "<frozen importlib._bootstrap_external>", line 919, in create_module
  File "<frozen importlib._bootstrap>", line 222, in _call_with_frames_removed
ImportError: DLL load failed: The specified module could not be found.
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
  File "D:\Anaconda3\envs\Keras\lib\site-packages\tensorflow\python\pywrap_tensorflow.py", line 41, in <module>
    from tensorflow.python.pywrap_tensorflow_internal import *
  File "C:\Program Files\JetBrains\PyCharm Community Edition 2017.1.4\helpers\pydev\_pydev_bundle\pydev_import_hook.py", line 21, in do_import
    module = self._system_import(name, *args, **kwargs)
  File "D:\Anaconda3\envs\Keras\lib\site-packages\tensorflow\python\pywrap_tensorflow_internal.py", line 21, in <module>
    _pywrap_tensorflow_internal = swig_import_helper()
  File "D:\Anaconda3\envs\Keras\lib\site-packages\tensorflow\python\pywrap_tensorflow_internal.py", line 20, in swig_import_helper
    return importlib.import_module('_pywrap_tensorflow_internal')
  File "D:\Anaconda3\envs\Keras\lib\importlib\__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
ImportError: No module named '_pywrap_tensorflow_internal'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
  File "<input>", line 1, in <module>
  File "C:\Program Files\JetBrains\PyCharm Community Edition 2017.1.4\helpers\pydev\_pydev_bundle\pydev_import_hook.py", line 21, in do_import
    module = self._system_import(name, *args, **kwargs)
  File "D:\Anaconda3\envs\Keras\lib\site-packages\tensorflow\__init__.py", line 24, in <module>
    from tensorflow.python import *
  File "C:\Program Files\JetBrains\PyCharm Community Edition 2017.1.4\helpers\pydev\_pydev_bundle\pydev_import_hook.py", line 21, in do_import
    module = self._system_import(name, *args, **kwargs)
  File "D:\Anaconda3\envs\Keras\lib\site-packages\tensorflow\python\__init__.py", line 49, in <module>
    from tensorflow.python import pywrap_tensorflow
  File "C:\Program Files\JetBrains\PyCharm Community Edition 2017.1.4\helpers\pydev\_pydev_bundle\pydev_import_hook.py", line 21, in do_import
    module = self._system_import(name, *args, **kwargs)
  File "D:\Anaconda3\envs\Keras\lib\site-packages\tensorflow\python\pywrap_tensorflow.py", line 52, in <module>
    raise ImportError(msg)
ImportError: Traceback (most recent call last):
  File "D:\Anaconda3\envs\Keras\lib\site-packages\tensorflow\python\pywrap_tensorflow_internal.py", line 18, in swig_import_helper
    return importlib.import_module(mname)
  File "D:\Anaconda3\envs\Keras\lib\importlib\__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 986, in _gcd_import
  File "<frozen importlib._bootstrap>", line 969, in _find_and_load
  File "<frozen importlib._bootstrap>", line 958, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 666, in _load_unlocked
  File "<frozen importlib._bootstrap>", line 577, in module_from_spec
  File "<frozen importlib._bootstrap_external>", line 919, in create_module
  File "<frozen importlib._bootstrap>", line 222, in _call_with_frames_removed
ImportError: DLL load failed: The specified module could not be found.
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
  File "D:\Anaconda3\envs\Keras\lib\site-packages\tensorflow\python\pywrap_tensorflow.py", line 41, in <module>
    from tensorflow.python.pywrap_tensorflow_internal import *
  File "C:\Program Files\JetBrains\PyCharm Community Edition 2017.1.4\helpers\pydev\_pydev_bundle\pydev_import_hook.py", line 21, in do_import
    module = self._system_import(name, *args, **kwargs)
  File "D:\Anaconda3\envs\Keras\lib\site-packages\tensorflow\python\pywrap_tensorflow_internal.py", line 21, in <module>
    _pywrap_tensorflow_internal = swig_import_helper()
  File "D:\Anaconda3\envs\Keras\lib\site-packages\tensorflow\python\pywrap_tensorflow_internal.py", line 20, in swig_import_helper
    return importlib.import_module('_pywrap_tensorflow_internal')
  File "D:\Anaconda3\envs\Keras\lib\importlib\__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
ImportError: No module named '_pywrap_tensorflow_internal'
Failed to load the native TensorFlow runtime.
See https://www.tensorflow.org/install/install_sources#common_installation_problems
for some common reasons and solutions.  Include the entire stack trace
above this error message when asking for help.

我通过CMD提示符执行此安装，并以管理员身份运行activate。我也在PyCharm中尝试过类似的结果。

说明说，即使我计划使用tensorflow-gpu，我也应该安装常规的tensorflow。

然而，我只是尝试安装tensorflow-gpu，虽然安装程序说它成功了，但在运行"import tensorflow as tf“时，我仍然收到上述错误。

因此，我似乎唯一能让它工作的方法就是不安装tensorflow-gpu。然而，我这样做的全部原因是为了能够利用我的NVIDIA GPU和Keras/Tensorflow。

注意:我确实安装了CUDA Toolkit8.0和cuDNN v5.1，尽管这个过程很混乱，所以我可能做错了什么。我看不到简单的方法来验证它。

首先，我尝试先安装tensorflow-gpu，然后在仅安装tensorflow时得到以下错误--尽管是管理员身份，但仍是权限错误：

Exception:
Traceback (most recent call last):
  File "D:\Anaconda3\envs\Keras\lib\site-packages\pip\basecommand.py", line 215, in main
    status = self.run(options, args)
  File "D:\Anaconda3\envs\Keras\lib\site-packages\pip\commands\install.py", line 342, in run
    prefix=options.prefix_path,
  File "D:\Anaconda3\envs\Keras\lib\site-packages\pip\req\req_set.py", line 784, in install
    **kwargs
  File "D:\Anaconda3\envs\Keras\lib\site-packages\pip\req\req_install.py", line 851, in install
    self.move_wheel_files(self.source_dir, root=root, prefix=prefix)
  File "D:\Anaconda3\envs\Keras\lib\site-packages\pip\req\req_install.py", line 1064, in move_wheel_files
    isolated=self.isolated,
  File "D:\Anaconda3\envs\Keras\lib\site-packages\pip\wheel.py", line 345, in move_wheel_files
    clobber(source, lib_dir, True)
  File "D:\Anaconda3\envs\Keras\lib\site-packages\pip\wheel.py", line 323, in clobber
    shutil.copyfile(srcfile, destfile)
  File "D:\Anaconda3\envs\Keras\lib\shutil.py", line 121, in copyfile
    with open(dst, 'wb') as fdst:
PermissionError: [Errno 13] Permission denied: 'D:\\Anaconda3\\envs\\Keras\\Lib\\site-packages\\numpy\\core\\multiarray.cp35-win_amd64.pyd'

这是一个类似的问题：Tensorflow GPU installation Error Windows 10 Anaconda

然而，我确实确保我的路径指向了正确的地方。

Answer 1

嗯，我修复了它，尽管老实说，我不太确定我尝试的哪些东西是有效的。

我又仔细地看了一遍这些步骤。这仍然不起作用，尽管它可能已经修复了一些前兆问题。然后，我进入Path环境变量并开始添加新路径，以便Tensorflow可以更容易地在我的Conda环境中为Keras/Tensorflow找到内容。特别是，我查找了文件"pywrap_tensorflow“(它找不到的文件)，找到了它并添加了一个特定的路径。我不知道这是否有必要。但最终，它成功了，我现在可以运行tensorflow gpu了。