EEGLAB installation error- Not able to set path

To install EEGLAB toolbox, I tried to "set path" and then add the EEGLAB directory. But every time I select the folder, I get an error message saying, "MATLAB cannot save changes to the path The path file, pathdef.m, might be read only or might be in a folder for which you do not have write access. You can save pathdef.m to a different location. For MATLAB to use it in the future sessions, save it in your MATLAB startup folder".

EEGLAB was working properly when I installed EEGLAB13_4_4b first in MATLAB 2014a. After that I installed MATLAB 2013 without uninstalling MATLAB 2014. Problem started coming when I removed the EEGLAB 13_4_4b and tried adding EEGLAb 13_1_1b. Now when ever I try using "set path" for any version of EGGLAB, this error message pops up.

Is there any fix for this problem ?

Answer 1

[Jan]

Did you read the error message?

 You can save pathdef.m to a different location. For MATLAB to use it in the future sessions, save it in your MATLAB startup folder.

Did you try this?

Matlab's original pathdef.m is found in matlabroot\toolbox\local\ . So if you do not have write permissions to this folder, an individual pathdef.m file must be stored in a folder, which is preferred to Matlab's initial list of folder in the path. The startup folder is a fine location to achieve this.

[Akhi]

My start up folder is Windows>system 32. I found the original pathdef.m file. What exactly do I have to with that ? Because when i try to save it in the start up folder, it is giving me the same error again.

[Jan]

Did you take a look into the docs already? See http://www.mathworks.com/help/matlab/matlab_env/matlab-startup-folder.html Use the userpath to store your personal pathdef.m file in.