MATLAB: Can’t run matlab; ‘restoredefaultpath’ not working

MATLABmatlab r2016b studentrestoredefaultpath

Hi,
Everything worked fine before I created my first script and stored it in another folder and tried to run it. Then I could not run anything. The system is Win 8.1 64bit. I re-installed, nothing changed. Here's the message:
Warning: MATLAB did not appear to successfully set the search path. To recover
for this session of MATLAB, type "restoredefaultpath;matlabrc". To find out how
to avoid this warning the next time you start MATLAB, type "docsearch problem
path" after recovering for this session. 
Warning: Initializing Java preferences failed in matlabrc.
This indicates a potentially serious problem in your MATLAB setup, which should
be resolved as soon as possible.  Error detected was:
MATLAB:UndefinedFunction
Undefined function 'usejava' for input arguments of type 'char'. 
> In matlabrc (line 121) 
Warning: Initializing MATLAB Graphics failed.
This indicates a potentially serious problem in your MATLAB setup, which should
be resolved as soon as possible.  Error detected was:
MATLAB:UndefinedFunction
Undefined function or variable 'ismac'. 
> In hgrc (line 163)
  In matlabrc (line 127) 
Warning: Failed to add default profiler filters. 
> In matlabrc (line 136) 
Warning: Initializing preferences failed in matlabrc.
This indicates a potentially serious problem in your MATLAB setup, which should
be resolved as soon as possible.    Error detected was:
MATLAB:scriptNotAFunction
Attempt to execute SCRIPT feature as a function:
C:\Users\****\Documents\MATLAB\feature.m 
> In matlabrc (line 165) 
Undefined function or variable 'setInitialWorkingFolder'.
Error in matlabrc (line 197)
setInitialWorkingFolder();

Best Answer

You need to rename
C:\Users\Zhengye Bian\Documents\MATLAB\feature.m
to not be named 'feature.m', or move it out of your MATLAB path.
You might also need to remove your preferences directory; https://www.mathworks.com/help/matlab/ref/prefdir.html or your startup.m
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