MATLAB warning: name does not exist or is not a directory

Environment:
Windows 10
MATLAB2016a
Problem:
When opening matlab, it prompts "Warning: The name does not exist or is not a directory: (path)"
as shown in the figure below:

Solution:
1. Enter >>edit pathdef.m in the command line window and press Enter.
2. Find the directory where the warning appears in the pathdef.m file, select it, and delete it.
3.ctrl+s to save the pathdef.m file.
4. Restart matlab.