Script works on one computer, but not another

My supervisor wrote a script that runs perfectly on her computer, but when she sent me the script (we also tried copy and pasting) it comes up with an error on mine. We have the exact same versions of Matlab and OSX and all the same toolboxes.

Does anyone know what else could cause this problem?

Thank you.

[Walter Roberson]

A copy of the error would help. It would also help to know if you are using different license types, such as if you are using a Student license and your supervisor is using an Education license.

[Maria Y]

Thanks for your reply. We are under the same license.

The error coming up says "Unable to perform assignment because the size of the left side is 795-by-1 and the size of the right side is 128-by-795." in the line of code

ertf_trial(:,e)=abs(segment); %for each trial, takes out ampltitude 

and in this line

[ertf_mean(:,:,condition),...   %generated a variable zertf (frequencies, time, conditons)

I'm new to Matlab so let me know if you need more info. Not sure if this can be answered without looking at the whole code.

[Walter Roberson]

Compare which .m files are in your current directory and compare whether your path() are the same . You might accidentally have a custom version of a .m file that you did not realise was being called.