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Why do I see a red indication in the M-Lint message bar in my MATLAB file in MATLAB 7.6 (R2008a) although the code executes without any errors?

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In one of the lines in my MATLAB file, I have an "end" statement. When I open this file in the MATLAB Editor, M-lint shows a red indicator right next to this line. When I hover over the indicator, I see the following message
M-lint caused your previous MATLAB session to terminate unexpectedly. Please send this message and file name
to MathWorks. See "About M-lint and Unexpected MATLAB Termination" in the MATLAB documentation for details.
Additionally, when I run the M-lint checker, I see additional messages in the report that were not shown by M-lint in the file itself.
The MATLAB file executes just fine.

Accepted Answer

MathWorks Support Team
MathWorks Support Team on 12 Oct 2010
Whenever MATLAB crashes unexpectedly due to M-lint, it adds the name of the MATLAB file that caused the crash to a file known as "MLintFailureFiles". This causes the red indicator to appear in the respective MATLAB file when it is opened subsequently.
To work around this issue, perform the following steps:
1. Navigate to the preferences directory. (This is the directory that MATLAB returns when you execute "prefdir" in the MATLAB command window)
2. Open the file called "MLintFailureFiles", and remove the name of the file that the red indicator is showing up in.
3. Save "MLintFailureFiles", and close it. The red indicator should no longer appear.

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