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Sascha
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I suddenly cannot save m-files anymore. What can I do about that?

Asked by Sascha
on 10 Oct 2012
Latest activity Answered by Bao Le
on 5 Dec 2019 at 0:46
When I create a new m-file and want to "save it as..." it does not change its name from "untitled" in the Editor and the little star telling i is unsaved does not disapear. Then again when I open and change an existing m-file I can save it as usual. I am using version 8.0.0.783 (R2012b).
Tanks for your help!!!

  3 Comments

I have exactely the same problem after upgrading from Matlab 2008b to 2012b (actually I uninstalled the first and installed the second from scratch) on Windows 7. Anybody found a solution yet?
I have the exact same problem here. I'm using windows 8. Is the still no solution??
edit: I just restarted my pc like the support suggested and it actually worked :)
Please run PSR.exe (Start>Search Programs and Files->psr, or whatever the equivalent way to find programs in in Windows 8) and record your session and upload to your favorite file sharing web site. Then tell us where you uploaded it. http://www.mathworks.com/matlabcentral/answers/7924-where-can-i-upload-images-and-files-for-use-on-matlab-answers That way we'll see exactly what you see in a series of screenshots.

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6 Answers

Answer by Azzi Abdelmalek
on 10 Oct 2012

copy your file content to text file(notepad for example), restart matlab, and save your file

  3 Comments

All you need to do is to create a new folder and save the new file into that folder because there is a limit to the number of files that a folder can contain. I tried it and it worked for me!
NTFS permits 2^31-1 files per subdirectory. If you are exceeding that, you should be reorganizing.
FAT32 permits 65534 files per subdirectory. That might apply for something like a USB stick.
I'm saving the files on my laptop computer and I don't even have that many files in the folder, less than 20 files. 10 images and 5 code snippets max.

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Answer by Image Analyst
on 10 Oct 2012

What operating system are you using and where are you trying to save it? Windows 7 does not let you save in certain folders even though the save file dialog will let you browse there.
Does the dialog box just exit as if everything went perfectly normally, or does it give you any kind of error message? If there is no error message, it should have worked and changed the title bar name in the editor. If it doesn't behave that way, I'd call the Mathworks.

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That's now how I read it. I read that with an existing file that he saved before he could still save it: " I open and change an existing m-file I can save it as usual."
While for a brand new file, never before saved: " I create a new m-file and want to "save it as..." it does not change its name from "untitled" in the Editor and the little star telling i is unsaved does not disapear"
@Azzi: After dozens of years of experiences with computer users, I've learned that "suddenly" means: directly after a modification I do not tell here, because I either do not assume that it is important or I'm even not aware of it.

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Answer by Sascha
on 11 Oct 2012

Hello and thanks for your answers so far. Image Analyst got it right. I am using Windows 7 Starter (on a netbook). There is no error dialogue, everything seems fine except the point, taht the m-file is not saved in the end.

  1 Comment

Got the problem description right, but still no solution. It seems totally bizarre and unexplainable so you need to call tech support.

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Answer by Sean de Wolski
on 26 Feb 2013
Edited by Sean de Wolski
on 26 Feb 2013

We have a few reports of this happening (including from me!) so please contact us so we can learn more about it.
One user resolved it by reintalling Windows.

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Answer by Elisa
on 4 Dec 2013

I have the same problem.
I believe that the problem has been in the updating of jdk from 1.6 to 1.7 and the declaration of the environment variable MATLAB_JAVA...
check it anyway...

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Answer by Bao Le
on 5 Dec 2019 at 0:46

first check your code are there any variables that are same with the function of matlab, if not copy it to a new file and save it

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