安装anaconda之后无法打开页面

尝试网上《全网最详细的Windows里Anaconda-Navigator启动后闪退的解决方案（图文详解）》之后仍未解决。在cmd中输入Anaconda-Navigator发现报错
为

qtpy.PythonQtError: No Qt bindings could be found

随后寻找到如下安装方案：
1.保证你电脑上有原装的python，就是从官网下的那个原版python
Run “pip install pyqt5-tools” from cmd.
2.在命令行窗口（cmd）输入pip install pyqt5-tools
You should have a message on screen post-installation - “Successfully installed click-7.0 pyqt5-5.13.0 pyqt5-tools-5.13.0.1.5 python-dotenv-0.10.3” 3.如果安装成功，会提示"Successfully installed click-7.0 pyqt5-5.13.0 pyqt5-tools-5.13.0.1.5 python-dotenv-0.10.3"的字样，反正只要没报错就行。