Matlab not stopping on some breakpoints

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Ray Harris
Ray Harris 2020-7-1
评论： Keenjhar 2024-1-3
Matlab suddenly (this afternoon) stopped honoring some, but not all, of my breakpoints on a file I have been working on since this morning.
I tried reloading Matlab, but problem persisted.
I tried removing my only "clear" statement (I have no "clear all" statements) and it had no effect.
Matlab is useless fo rme until this gets fixed!!!!!
  2 个评论
Adam Danz
Adam Danz 2020-7-1
Have you tried removing all break points, saving the file, closing the file, reopening the file, and setting new break points?
This has never happened to me and I use debug mode with break points on a nearly daily basis for years.

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回答（2 个）

Image Analyst
Image Analyst 2020-7-1
Yes, it can happen and I see it fairly often. It's usually when I do something like set breakpoints and run then stop at a breakpoint. Then change a variable name or edit the code somehow and set new breakpoint. Then it sometimes won't stop at the new breakpoints, I think because the file needs to be saved again. If I just exit and restart, then it will see the new breakpoints and stop at them.
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Bogdan -Ervin
Bogdan -Ervin 2023-10-10
编辑：Bogdan -Ervin 2023-10-10
In my case, even though the breakpoint is valid (it has the red color and the line doesn't have any error), the code will not stop at breakpoint. This happens in Matlab R2020a.

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Gurpreet Singh
Gurpreet Singh 2020-7-1
Hi Ray,
Please refer to the following Doc in MATLAB Command Window:
>>web(fullfile(docroot, 'matlab/debugging-code.html'))
You can also try to use the following command at the beginning of script:
>>dbstop if caught error
MATLAB will go to debug mode at the erroneous line, though this will probably stop more than the user wants.
You can also execute only selected code by keyboard shortcut F9.

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