Unable to open any kind of file in Matlab 2014b due to path error.

Hello,

Whenever I open Matlab script, it shows error;

Warning: Name is nonexistent or not a directory: C:\Program Files\MATLAB\R2014b\toolbox\matlab\system\editor
Warning: Name is nonexistent or not a directory: C:\Program Files\MATLAB\R2014b\toolbox\target\codertarget\matlabcoder
Warning: Name is nonexistent or not a directory: C:\Program Files\MATLAB\R2014b\toolbox\target\extensions\processor\ARM\tfl
Warning: Name is nonexistent or not a directory: C:\Program Files\MATLAB\R2014b\toolbox\matlab\toolboxmanagement\matlab_api
Warning: Name is nonexistent or not a directory: C:\Program Files\MATLAB\R2014b\toolbox\vision\visiondata
An unknown error occurred in FULLFILE while constructing the file specification.
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: Duplicate directory name: C:\Program Files\MATLAB\R2014b\toolbox\local
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:unassignedOutputs
Output argument "output_args" (and maybe others) not assigned during call to "D:\Z other works\final code for ankit\length.m>length".

I tried many answer like answer1 answer2 but when I run restoredefaultpath;matlabrc it shows error

An unknown error occurred in FULLFILE while constructing the file specification.
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. 
> In matlabrc at 68 
Warning: Duplicate directory name: C:\Users\Naseeb\Documents\MATLAB 
> In matlabrc at 75 
Warning: Duplicate directory name: C:\Program Files\MATLAB\R2014b\toolbox\matlab\apps 
> In matlabrc at 75 
Warning: Duplicate directory name: C:\Program Files\MATLAB\R2014b\toolbox\matlab\audiovideo

I tried this answer also but no help.

I installed Matlab 2016 few days back while I already have Matlab 2014b. Is this create some problem? How to solve this ?

Thanks.

Answer 1

[Naseeb Gill]

Okey,

I found out the error. Actually what I did was. I made a function file named length which is also a keyword for Matlab. When I tried to open this function file Matlab shows error. To avoid error (to open this function file), I navigated to the C:\Program Files\MATLAB\R2014b\toolbox\local folder and typed "savepath pathdef.m". Due to this, path changes and Matlab was unable to open script, class or function files. Then, I realized my mistake and rename the length to length_rr and write

restoredefaultpath;matlabrc

in the command window.

After this, I performed the same step i.e. I navigated to the C:\Program Files\MATLAB\R2014b\toolbox\local folder and typed "savepath pathdef.m".

This solved my problem.

Thanks.