我尝试了所有方法，但最终找到了解决方法.

I tried everything, but finally i found the solution.

您只需将 pip 的版本从 19 降级为 18.1 :

You just have to downgrade your pip from version 19 to 18.1 :

pip install pip==18.1

然后安装PyInstaller:

Then install PyInstaller :

pip install pyinstaller

.

如您所见，我设法安装了它:

As you see i managed to install it :

之后，您可以再次升级您的点数:

After that you can upgrade again your pip :

python -m pip install --upgrade pip