TensorFlow2.1.0安装错误解决办法-wrapt错误和dll加载错误

我在安装TensorFlow2.1.0时，遇到了以下错误。自己百度了很多方法，但是都比较零散，于是我把自己的经历总结成这篇教程分享给大家，希望能够有所帮助。

1. wrapt安装错误

Building wheel for wrapt (setup.py) ... Error
  ERROR: Command errored out with exit status 1:
   command: 'C:\Users\57371\.conda\envs\TensorFlow2.0\python.exe' -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\57371\\AppData\\Local\\Temp\\pip-install-8sudd7fm\\wrapt\\setup.py'"'"'; __file__='"'"'C:\\Users\\57371\\AppData\\Local\\Temp\\pip-install-8sudd7fm\\wrapt\\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' bdist_wheel -d 'C:\Users\57371\AppData\Local\Temp\pip-wheel-cesdoy36' --python-tag cp37
       cwd: C:\Users\57371\AppData\Local\Temp\pip-install-8sudd7fm\wrapt\
  Complete output (59 lines):
  running bdist_wheel
  running build
  running build_py
  creating build
  creating build\lib.win-amd64-3.7
  creating build\lib.win-amd64-3.7\wrapt
  copying src\wrapt\decorators.py -> build\lib.win-amd64-3.7\wrapt
  copying src\wrapt\importer.py -> build\lib.win-amd64-3.7\wrapt
  copying src\wrapt\wrappers.py -> build\lib.win-amd64-3.7\wrapt
  copying src\wrapt\__init__.py -> build\lib.win-amd64-3.7\wrapt
  running build_ext
  building 'wrapt._wrappers' extension
  Traceback (most recent call last):
    File "<string>", line 1, in <module>
    File "C:\Users\57371\AppData\Local\Temp\pip-install-8sudd7fm\wrapt\setup.py", line 101, in <module>
      run_setup(with_extensions=True)
    File "C:\Users\57371\AppData\Local\Temp\pip-install-8sudd7fm\wrapt\setup.py", line 71, in run_setup
      setup(**setup_kwargs_tmp)
    File "C:\Users\57371\.conda\envs\TensorFlow2.0\lib\distutils\core.py", line 148, in setup
      dist.run_commands()
    File "C:\Users\57371\.conda\envs\TensorFlow2.0\lib\distutils\dist.py", line 966, in run_commands
      self.run_command(cmd)
    File "C:\Users\57371\.conda\envs\TensorFlow2.0\lib\distutils\dist.py", line 985, in run_command
      cmd_obj.run()
    File "C:\Users\57371\.conda\envs\TensorFlow2.0\lib\site-packages\wheel\bdist_wheel.py", line 192, in run
      self.run_command('build')
    File "C:\Users\57371\.conda\envs\TensorFlow2.0\lib\distutils\cmd.py", line 313, in run_command
      self.distribution.run_command(command)
    File "C:\Users\57371\.conda\envs\TensorFlow2.0\lib\distutils\dist.py", line 985, in run_command
      cmd_obj.run()
    File "C:\Users\57371\.conda\envs\TensorFlow2.0\lib\distutils\command\build.py", line 135, in run
      self.run_command(cmd_name)
    File "C:\Users\57371\.conda\envs\TensorFlow2.0\lib\distutils\cmd.py", line 313, in run_command
      self.distribution.run_command(command)
    File "C:\Users\57371\.conda\envs\TensorFlow2.0\lib\distutils\dist.py", line 985, in run_command
      cmd_obj.run()
    File "C:\Users\57371\AppData\Local\Temp\pip-install-8sudd7fm\wrapt\setup.py", line 25, in run
      build_ext.run(self)
    File "C:\Users\57371\.conda\envs\TensorFlow2.0\lib\distutils\command\build_ext.py", line 340, in run
      self.build_extensions()
    File "C:\Users\57371\.conda\envs\TensorFlow2.0\lib\distutils\command\build_ext.py", line 449, in build_extensions
      self._build_extensions_serial()
    File "C:\Users\57371\.conda\envs\TensorFlow2.0\lib\distutils\command\build_ext.py", line 474, in _build_extensions_serial
      self.build_extension(ext)
    File "C:\Users\57371\AppData\Local\Temp\pip-install-8sudd7fm\wrapt\setup.py", line 31, in build_extension
      build_ext.build_extension(self, ext)
    File "C:\Users\57371\.conda\envs\TensorFlow2.0\lib\distutils\command\build_ext.py", line 534, in build_extension
      depends=ext.depends)
    File "C:\Users\57371\.conda\envs\TensorFlow2.0\lib\distutils\_msvccompiler.py", line 346, in compile
      self.initialize()
    File "C:\Users\57371\.conda\envs\TensorFlow2.0\lib\distutils\_msvccompiler.py", line 239, in initialize
      vc_env = _get_vc_env(plat_spec)
    File "C:\Users\57371\.conda\envs\TensorFlow2.0\lib\site-packages\setuptools\msvc.py", line 171, in msvc14_get_vc_env
      return EnvironmentInfo(plat_spec, vc_min_ver=14.0).return_env()
    File "C:\Users\57371\.conda\envs\TensorFlow2.0\lib\site-packages\setuptools\msvc.py", line 1620, in return_env
      if self.vs_ver >= 14 and isfile(self.VCRuntimeRedist):
    File "C:\Users\57371\.conda\envs\TensorFlow2.0\lib\genericpath.py", line 30, in isfile
      st = os.stat(path)
  TypeError: stat: path should be string, bytes, os.PathLike or integer, not NoneType
  ----------------------------------------
  ERROR: Failed building wheel for wrapt
  Running setup.py clean for wrapt
Failed to build wrapt
Installing collected packages: wrapt
    Running setup.py install for wrapt ... error
    ERROR: Command errored out with exit status 1:
     command: 'C:\Users\57371\.conda\envs\TensorFlow2.0\python.exe' -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\57371\\AppData\\Local\\Temp\\pip-install-8sudd7fm\\wrapt\\setup.py'"'"'; __file__='"'"'C:\\Users\\57371\\AppData\\Local\\Temp\\pip-install-8sudd7fm\\wrapt\\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record 'C:\Users\57371\AppData\Local\Temp\pip-record-_mrif7cq\install-record.txt' --single-version-externally-managed --compile
         cwd: C:\Users\57371\AppData\Local\Temp\pip-install-8sudd7fm\wrapt\
    Complete output (61 lines):
    running install
    running build
    running build_py
    creating build
    creating build\lib.win-amd64-3.7
    creating build\lib.win-amd64-3.7\wrapt
    copying src\wrapt\decorators.py -> build\lib.win-amd64-3.7\wrapt
    copying src\wrapt\importer.py -> build\lib.win-amd64-3.7\wrapt
    copying src\wrapt\wrappers.py -> build\lib.win-amd64-3.7\wrapt
    copying src\wrapt\__init__.py -> build\lib.win-amd64-3.7\wrapt
    running build_ext
    building 'wrapt._wrappers' extension
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "C:\Users\57371\AppData\Local\Temp\pip-install-8sudd7fm\wrapt\setup.py", line 101, in <module>
        run_setup(with_extensions=True)
      File "C:\Users\57371\AppData\Local\Temp\pip-install-8sudd7fm\wrapt\setup.py", line 71, in run_setup
        setup(**setup_kwargs_tmp)
      File "C:\Users\57371\.conda\envs\TensorFlow2.0\lib\distutils\core.py", line 148, in setup
        dist.run_commands()
      File "C:\Users\57371\.conda\envs\TensorFlow2.0\lib\distutils\dist.py", line 966, in run_commands
        self.run_command(cmd)
      File "C:\Users\57371\.conda\envs\TensorFlow2.0\lib\distutils\dist.py", line 985, in run_command
        cmd_obj.run()
      File "C:\Users\57371\.conda\envs\TensorFlow2.0\lib\site-packages\setuptools\command\install.py", line 61, in run
        return orig.install.run(self)
      File "C:\Users\57371\.conda\envs\TensorFlow2.0\lib\distutils\command\install.py", line 545, in run
        self.run_command('build')
      File "C:\Users\57371\.conda\envs\TensorFlow2.0\lib\distutils\cmd.py", line 313, in run_command
        self.distribution.run_command(command)
      File "C:\Users\57371\.conda\envs\TensorFlow2.0\lib\distutils\dist.py", line 985, in run_command
        cmd_obj.run()
      File "C:\Users\57371\.conda\envs\TensorFlow2.0\lib\distutils\command\build.py", line 135, in run
        self.run_command(cmd_name)
      File "C:\Users\57371\.conda\envs\TensorFlow2.0\lib\distutils\cmd.py", line 313, in run_command
        self.distribution.run_command(command)
      File "C:\Users\57371\.conda\envs\TensorFlow2.0\lib\distutils\dist.py", line 985, in run_command
        cmd_obj.run()
      File "C:\Users\57371\AppData\Local\Temp\pip-install-8sudd7fm\wrapt\setup.py", line 25, in run
        build_ext.run(self)
      File "C:\Users\57371\.conda\envs\TensorFlow2.0\lib\distutils\command\build_ext.py", line 340, in run
        self.build_extensions()
      File "C:\Users\57371\.conda\envs\TensorFlow2.0\lib\distutils\command\build_ext.py", line 449, in build_extensions
        self._build_extensions_serial()
      File "C:\Users\57371\.conda\envs\TensorFlow2.0\lib\distutils\command\build_ext.py", line 474, in _build_extensions_serial
        self.build_extension(ext)
      File "C:\Users\57371\AppData\Local\Temp\pip-install-8sudd7fm\wrapt\setup.py", line 31, in build_extension
        build_ext.build_extension(self, ext)
      File "C:\Users\57371\.conda\envs\TensorFlow2.0\lib\distutils\command\build_ext.py", line 534, in build_extension
        depends=ext.depends)
      File "C:\Users\57371\.conda\envs\TensorFlow2.0\lib\distutils\_msvccompiler.py", line 346, in compile
        self.initialize()
      File "C:\Users\57371\.conda\envs\TensorFlow2.0\lib\distutils\_msvccompiler.py", line 239, in initialize
        vc_env = _get_vc_env(plat_spec)
      File "C:\Users\57371\.conda\envs\TensorFlow2.0\lib\site-packages\setuptools\msvc.py", line 171, in msvc14_get_vc_env
        return EnvironmentInfo(plat_spec, vc_min_ver=14.0).return_env()
      File "C:\Users\57371\.conda\envs\TensorFlow2.0\lib\site-packages\setuptools\msvc.py", line 1620, in return_env
        if self.vs_ver >= 14 and isfile(self.VCRuntimeRedist):
      File "C:\Users\57371\.conda\envs\TensorFlow2.0\lib\genericpath.py", line 30, in isfile
        st = os.stat(path)
    TypeError: stat: path should be string, bytes, os.PathLike or integer, not NoneType
    ----------------------------------------
ERROR: Command errored out with exit status 1: 'C:\Users\57371\.conda\envs\TensorFlow2.0\python.exe' -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\57371\\AppData\\Local\\Temp\\pip-install-8sudd7fm\\wrapt\\setup.py'"'"'; __file__='"'"'C:\\Users\\57371\\AppData\\Local\\Temp\\pip-install-8sudd7fm\\wrapt\\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record 'C:\Users\57371\AppData\Local\Temp\pip-record-_mrif7cq\install-record.txt' --single-version-externally-managed --compile Check the logs for full command output.

经过检查发现，是wrapt模块不对，于是上了https://www.lfd.uci.edu/~gohlke/pythonlibs/#wrapt网站上一看，发现最新的wrapt是基于python3.8版本的，而我的python只是3.7，所以出错了。于是手动下载3.7版本的wrapt进行安装，然后 pip install “whl文件下载路径+whl文件名”，例如：
pip install "E:\wrapt-1.10.11-cp37-cp37m-win_amd64.whl"

显示安装成功，在执行TensorFlow的安装命令，没有报错，一次性安装成功。

2. dll加载错误

运行代码测试，发现还有问题。
这是因为缺失了相应的运行库，https://aka.ms/vs/16/release/vc_redist.x64.exe在这里下载所有的2015-2019的运行库进行安装，然后再次import，还是有警告，但是仔细看第二句，如果你安装不是GPU版本，则可以忽略上述警告。

至此，TensorFlow2.1.0安装成功。输入pip list，可以看到已经有TensorFlow在里面了。