[我找到了答案]
我无法从Anaconda启动应用程序。我只能使用以下命令行启动Anaconda Navigator：
anaconda-navigator
（有效）。我无法从桌面上的快捷方式启动Anaconda Navigator。
然后，当我在Anaconda Navigator中并尝试启动应用程序时，出现错误消息。
例如，当启动Spyder时：
Traceback (most recent call last):
File "C:\Users\ASUS\Anaconda3\Scripts\spyder-script.py", line 10, in
sys.exit(main())
File "C:\Users\ASUS\Anaconda3\lib\site-packages\spyder\app\start.py", line 186, in main
from spyder.app import mainwindow
File "C:\Users\ASUS\Anaconda3\lib\site-packages\spyder\app\mainwindow.py", line 90, in
from qtpy import QtWebEngineWidgets # analysis:ignore
File "C:\Users\ASUS\Anaconda3\lib\site-packages\qtpy\QtWebEngineWidgets.py", line 22, in
from PyQt5.QtWebEngineWidgets import QWebEnginePage
ValueError: PyCapsule_GetPointer called with incorrect name
启动Jupyter Notebook时：
Traceback (most recent call last):
File "C:\Users\ASUS\Anaconda3\Scripts\jupyter-notebook-script.py", line 6, in
from notebook.notebookapp import main
File "C:\Users\ASUS\AppData\Roaming\Python\Python37\site-packages\notebook\notebookapp.py", line 47, in
from zmq.eventloop import ioloop
File "C:\Users\ASUS\AppData\Roaming\Python\Python37\site-packages\zmq\__init__.py", line 47, in
from zmq import backend
File "C:\Users\ASUS\AppData\Roaming\Python\Python37\site-packages\zmq\backend\__init__.py", line 40, in
reraise(*exc_info)
File "C:\Users\ASUS\AppData\Roaming\Python\Python37\site-packages\zmq\utils\sixcerpt.py", line 34, in reraise
raise value
File "C:\Users\ASUS\AppData\Roaming\Python\Python37\site-packages\zmq\backend\__init__.py", line 27, in
_ns = select_backend(first)
File "C:\Users\ASUS\AppData\Roaming\Python\Python37\site-packages\zmq\backend\select.py", line 28, in select_backend
mod = __import__(name, fromlist=public_api)
File "C:\Users\ASUS\AppData\Roaming\Python\Python37\site-packages\zmq\backend\cython\__init__.py", line 6, in
from . import (constants, error, message, context,
ImportError: cannot import name 'constants' from 'zmq.backend.cython' (C:\Users\ASUS\AppData\Roaming\Python\Python37\site-packages\zmq\backend\cython\__init__.py)
我已经重新安装了两次Anaconda。我尝试了许多命令行来更新Anaconda的软件包。示例：
activate root
conda update -n root conda
conda update --all
我真的不知道该怎么办，我看着StackOverflow看看是否可以找到答案，但是我什么都没找到。
谢谢。