Cannot open anaconda suddenly

Question

Today I found I cannot open anaconda navigator, which operated just fine before. At the same time, spyder could not be open either, but jupyter notebook and

Answer 1

The real fix that worked for me was to install the module that was causing the error, that is the PySide module. Do not install PySide (pip install PySide) unless you are using Python 3.4 or less. If you are running Python 3.4 and up (up to 3.7), you need to install PySide2 (pip install PySide2).

None of the other answers worked for me at all because the error was the same all over again.