Matlab .pref file error (R2007b)

Question

susan 2012-10-19

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https://ww2.mathworks.cn/matlabcentral/answers/51312-matlab-pref-file-error-r2007b

评论： LIU XUAN 2016-5-13

Hello,

This was working fine last night. Did'nt do anything different but now when I try to open up a gui I get this error..

Unable to read MAT-file /.../.matlab/R2007b/matlabprefs.mat: not a binary MAT-file. Try LOAD -ASCII to read as text.

I looked at the file - it is empty. I deleted it and restarted but nothing..I found this advice for Windows (<http://www.gomatlab.de/email-mit-gmx-senden-t13872.html>) but I have a Mac..

Thanks, S

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Trudy 2013-7-9

编辑：Trudy 2013-7-9

Did you find a solution for this problem? I'm running into the same thing.

Thanks, Trudy

Update: After renaming the file matlab will create a new matlabprefs.mat file that does work.

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Answer 1

oeldad 2015-6-25

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https://ww2.mathworks.cn/matlabcentral/answers/51312-matlab-pref-file-error-r2007b#answer_184064

For the sake of somebody else searching for this topic. I just had a similar problem out of nowhere.

I went into the directory, the file existed, but it was there without the proper extension. I added the *.mat extension to it and that fixed the problem for me. If the file is missing completely maybe you need to find a copy to put in that directory.