Error with tempname and tempdir
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Recently I noticed that tempname and tempdir are not working anymore on my computer. Any ideas about why I get the following error messages? I checked and I have the ...Local\Temp folder where it is supposed to be...
>> tmp_nam = tempname
Error using cd
Cannot CD to C:\Users\Razvan\AppData\Local\Temp (Name is nonexistent or not a directory).
Error in tempdir (line 31)
curr_dir = cd(tmp_dir);
Error in tempname (line 18)
dirname = tempdir;
>> tmp_folder = tempdir
Error using cd
Cannot CD to C:\Users\Razvan\AppData\Local\Temp (Name is nonexistent or not a directory).
Error in tempdir (line 31)
curr_dir = cd(tmp_dir);
If I run Matlab "as Administrator" then the 2 commands work...
Thanks, Razvan
2 个评论
Image Analyst
2013-1-19
Those commands work fine for me and I'm not running as administrator.
swati khan
2016-10-18
Right_Click_Matlab_Shortcut < Properties < Shortcut < Advanced < Select Run as Administrator < OK < OK
回答（4 个）
Walter Roberson
2013-1-17
1 个投票
Possibly one of the directories along the way does not allow you read permission (or, if it was Unix, execute permission would be needed.) Use Windows Explorer to check the Security Settings on the path; also verify that the directory is owned by you.
2 个评论
Image Analyst
2013-1-19
Those commands work fine for me and I'm not running as administrator.
>> tmp_nam = tempname
tmp_nam =
C:\Users\Razvan\AppData\Local\Temp\tpdcd91567_4e74_43ae_aaf4_64dec3b0aa6d
>> tmp_folder = tempdir
tmp_folder =
C:\Users\Razvan\AppData\Local\Temp\
Both the file and folder you're allowed to write to even if you don't have admin authority. What I don't understand is why it's trying to cd to the folder. The help says "tmp_folder = tempdir returns the name of the system's temporary folder, if one exists. This function does not create a new folder. " so it's not supposed to create it or change to it. Are you sure you didn't redefine them? What does "which -all tempdir" say?
8 个评论
Razvan
2013-1-20
Image Analyst
2013-1-20
Try this exactly as below, and copy and paste results back here:
echo on
try
tempdir
catch ME
errorMessage = sprintf('Error calling tempdir.\n\nError Message:\n%s', ME.message);
fprintf(1,'%s\n', errorMessage);
uiwait(warndlg(errorMessage));
end
try
tempname
catch ME
errorMessage = sprintf('Error calling tempname.\n\nError Message:\n%s', ME.message);
fprintf(1,'%s\n', errorMessage);
uiwait(warndlg(errorMessage));
end
try
cd C:\Users\Razvan\AppData\Local\Temp
catch ME
errorMessage = sprintf('Error calling cd.\n\nError Message:\n%s', ME.message);
fprintf(1,'%s\n', errorMessage);
uiwait(warndlg(errorMessage));
end
Razvan
2013-1-20
Image Analyst
2013-1-20
You said that you have this folder: "C:\Users\Razvan\AppData\Local\Temp" but it's telling you that you don't. Are you 100% sure that you have that folder? Browse to it with Windows Explorer.
Razvan
2013-1-20
Image Analyst
2013-1-20
If you say cmd, what directory does it put you at when it opens the console window?
Razvan
2013-1-20
Image Analyst
2013-5-7
You do not have permission to write to that folder, I don't think. It has to be in the Documents subfolder of that.
Razvan
2013-1-20
0 个投票
1 个评论
Daniel Pereira
2013-5-7
Thank you very much, I had the same problem and could not even run simulink, unless I run Matlab as administrator (which was a problem as files I opened from windows explorer were opening on a new instance of matlab).
Thanks everyone who helped us!
Sebastian Pakula
2020-7-27
0 个投票
I had a similar problem, but the problem was Dropbox folder which prevent getting access to it. The solution is to stop synchronizing Dropbox during the running program.
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2020-7-27
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