STM32CubeIDE 2.0 detached STM32CubeMX problem

[JensH]

Hello,

I tested the new STM32CubeIDE 2.0 today and was initially confused that CubeMX opened when I double-clicked on the *.ioc file. However, this is listed as a new feature in the release notes.

Unfortunately, this feature completely destroys my projects.
When the code is generated, these settings in the CubeIDE project change:
- Targeted Language changes from C++ to C
- Linked folders are deleted
- Configurations: DEBUG, SYSTEM added
- Linker file settings from own configurations deleted

Did I make a mistake in the settings? Why is the project changed so much?

Best regards,
Jens

[Mahmoud Ben Romdhane]

Hello @JensH ,

 

First let me thank you for posting.

For more investigation, I suggest that you provide the initial STM32CubeIDE Project created with 1.19.0.

 

Thanks.

Mahmoud

 

[JensH]

Hi Mahmoud,

I added the two projects.

One is generated with 1.19 and the other one is regenereated with 2.0.

 

Best regards

Jens

[__Mohamed__Ayman__Dev]

You didn’t make a mistake — this is actually a regression in STM32CubeIDE 2.0.
The new feature where double-clicking the .ioc file opens CubeMX inside the IDE is causing CubeMX to overwrite several project settings during code generation.

Until ST releases a fix, the recommended workarounds are:

1. Regenerate code manually
   Using Project → Generate Code instead of opening the .ioc file.

2. Avoid editing the .ioc in IDE 2.0
   Or open the .ioc with external CubeMX (standalone).

3. Back up the .project and .cproject files
   So they can be restored after regeneration.

Hopefully ST will address this in the next update.

And try to use any Version Control in the future for easy back up.

Best regards.

[JensH]

Hi Mohamed,

During development, I constantly change the *.ioc file.
I adjust peripheral frequencies or change GPIO configurations, for example.
Before using this workaround, I prefer to stay on version 1.19 and wait for the bug fix.

Best regards

Jens

[jd5]

This is a big deal! 

I don't understand how something like this can happen?
Doesn't anyone test what happens to old projects?

[MGogr.1]

Thanks @JensH  for telling us about this feature. I was going to update my Cube IDE, but now I won't update until they fix this bug.

[Mahmoud Ben Romdhane]

Hello @JensH @MGogr.1 @jd5 ,

 

I am currently investigation this issue and I will get back to you as soon as possible.

 

Thanks.

Mahmoud

[Mahmoud Ben Romdhane]

Hello @JensH @MGogr.1 @jd5 ,

 

Let me thank you for bringing the issue to our attention.

An internal ticket was submitted to the dedicated team (Internal Ticket Number: Ticket 222143 ).

I will let you know when the issue is fixed.

As workaround, you can point manually to the desired linker file:

and convert the code to C++

 

Thanks.

Mahmoud

 

[Theodore-henry6]

Hello Jens,

This isn’t a mistake on your side. In STM32CubeIDE 2.0, opening the *.ioc file automatically with CubeMX can overwrite project settings—switching C++ to C, deleting linked folders, adding new configurations, and removing custom linker files.

For now, the safest approach is either to avoid regenerating code from the .ioc file or use the standalone CubeMX. Many users have reported the same issue, so it seems to be a change in 2.0 rather than a misconfiguration.

[Mahmoud Ben Romdhane]

Hello @JensH @Theodore-henry6 @jd5 @MGogr.1 

 

The issue is confirmed: [Linked Folders are deleted] and reported to the dedicated to the Dedicated Team.

I will let you know when the issue is fixed.

 

Thanks.

Mahmoud

[JensH]

Hallo @Mahmoud Ben Romdhane ,

so am I right that everything I reported is confirmed and reported?

1. Targeted language changes from C++ to C
2. Linker file settings from own configurations deleted (because of switching from C++ to C)
3. Configurations: DEBUG, SYSTEM added
4. Variable linked folders are deleted

Best regards,

Jens

[Robmar]

another STM MCU FU!  This is not a fix. Don't they test even the basic functions before releasing updated FGS!

[Teun888]

There should really be an update in every type of documentation for this. I was just following the tutorial and the video from 5 years ago showed features I couldn't find. Including this rabbit hole I dove in to when I couldn't create a project with the graphical user interface in the IDE. Only to read the release notes for 2.0 afterward. Very frustrating!

[Andrew Neil]

While I agree it's bad that the documentation is out-of-date - especially with such a significant change - I don't think you can really complain about a 5 year old video not reflecting the latest version!

That's even older than v1.07.0 !

See this post for an up-to-date tutorial.

 

[Teun888]

And I will totally agree with that. But then why do they have links to 5 year old videos in their documentation?
I'm not sure how I got to the video this afternoon but I think it was through the videos for tutorials directly in CubeIDE.