"Error using feof" at exit

I am running 2016a, but I had a similar problem with 2014a also. When I try to close MATLAB, I get the following errors:

*******************************************

Error using feof
Invalid file identifier. Use fopen to generate a valid file
identifier.

Error in preserve_history (line 12)
while ~feof(fid)

Error in finish (line 3)
preserve_history;

*******************************************

I did a quick google search, but did not find anything related. The only way I've been able to close the program is to force-quit through the task manager.

Any insight would be greatly appreciated.

Answer 1

[Walter Roberson]

Use

which finish

to find the finish.m that is being executed. It is probably calling upon preserve_history from http://www.mathworks.com/matlabcentral/fileexchange/9291-save-entire-command-history . That code is using fopen() to open a file and is not checking to see if the open worked.

The code directly from the File Exchange uses

[fid, err] = fopen('c:\documents and settings\snelljo\application data\mathworks\matlab\r14sp3\history_saved.m', 'r');

but chances are you do not happen to have exactly that directory.

[Marie]

Hmm. That is interesting.

Not only do I not have the directory it is looking for, but any of the files (e.g., history_saved.m) either. Perhaps it would be best to just delete the folder and see what happens (I have a back up).

...

Deleting the history folder fixed the problem. Hopefully, I didn't create a new one by doing that, but I don't actually recall why I wanted that function. Thanks!