Cannot add breakpoints in 2022b when path includes accented characters

Since I updated to 2022b today (from 2021b), I cannot use breakpoints in some scripts anymore.

It seems that the problem is related to accented characters in the file path.

As soon as I try to put a breakpoint in a script, it is not added, and I get a pop-up with the following error message:

###

MATLAB Editor

Cannot enable breakpoints because of syntax error.

Cannot find function "D:\...\main.m"

###

In the file path, the letter "à" occurs (it is a shared folder and renaming it is not an option).

Potentially relevant fact: in the pop-up, the "à" is replaced by a "Ã" (e.g, the pop-up tells Cannot find function "D:\aÃa\main.m" instead of the right path Cannot find function "D:\aàa\main.m").

Additional hints:

- the main.m script runs smoothly, only the breakpoints are bugged

- if I move the main.m file to another folder without accents, breakpoints work fine; any folder with "à" does not work

- if I try to put breakpoints in any other .m file in the same folder, I get the error as well

- everything works smoothly in 2021b, including breakpoints

Thank you!

[Rik]

Are you sure it isn't à followed by a (non-breaking) space?

unicode2native('à','UTF-8')

ans = 1×2

195 160

char(ans)

ans = 'à'

At any rate, this is a bug and should be reported as such.

[Riccardo Felicetti]

@Rik : you are right. I tried with a new folder, and in the pop-up message there is an à followed by some kind of space.

I couldn't figure it out before, because "à" was followed by a regular space.

Should I report the bug from Matlab software -> Resources -> Request support ?

Thank you for your prompt response!

[Rik]

I don't believe I have submitted a bug before (I might have), so your skills of looking around on the website will be as good as mine.

The reason for this behaviour is the failure to decode rich text encoded with UTF-8. I don't know what internally has caused this, but it is a bug and should be fixed.

[Bala Tripura Bodapati]

Hi Riccardo

I am not able to reproduce the issue at my end. On creating a demo script in the path 'C:Desktop/aàa/main.m' and adding breakpoints to the script, there is no error encounterd at my end in MATLAB R2022b.

Could you share the following information which helps me reproduce and debug the issue at my end:

1. The Platform and Operating System used
2. A demo folder and script which has caused this issue.

[Riccardo Felicetti]

Hello Bala,

sorry for the late reply: I figured out that the problem is actually related to the operating system, as you pointed out.

Everything runs smoothly in Windows 11, while the issue occurred in a older PC with a previous Windows version (that does not officially satisfy Matlab's system requirements, although it practically used to be fine for 2021b).

I am fully convinced the solution in this case is moving to Windows 10 or 11, according to the requirements.

Hope it helps, thank you everybody for the support!

[Resul AZIZI]

Hello

I am using windows 10 enterprise and I have the same problem.

I think windows 10 is not a solution too.

[Walter Roberson]

You could potentially have problems on NTFS disks that had 8.3 compatibility disabled.