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BMB
Associate II
September 11, 2026
Solved

CubeMX generates virtual folders with spaces in names

  • September 11, 2026
  • 6 replies
  • 96 views

I am really trying to report a problem/bug but I could not find straghtforward way to do it on the STM site. So here it goes:

STM32CubexMx for certain object (like USBX) creates virtual folders with spaces in name. These cannot be resolved correctly by STM32CubeIDE (Eclipse) when they are reference links. Project Explore shows folders but with no files and they are not build.

For example:

UX Device CoreStack

UX Device Classes

UX Host Stack

 

The system the tool run under is Windows 11.

Best answer by Mahmoud Ben Romdhane

Hello ​@BMB 

I recommend that you try to delete the cache folders under this path: C:\Users\_

 

I will be waiting for your feedback.

Thanks.

Mahmoud 

6 replies

Mahmoud Ben Romdhane
ST Technical Moderator
September 14, 2026

Hello ​@BMB 

Let me thank you for posting.

For more investigation, I recommend that you provide your Ioc.File.

Thanks.

Mahmoud

To give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.
    BMBAuthor
    Associate II
    September 14, 2026

    The key is to include USBX stack.  STM32CubeMX v6.18.1 (the animation in About is silly, drop it). SDK is STM32Cube_FW_N6_V1.4.1. Part is STM32N657x0Hx, the board is STM32N657-DK. Generating for STM32CubeIDE (Advanced), FSBL only.

      Mahmoud Ben Romdhane
      ST Technical Moderator
      September 15, 2026

      Hello ​@BMB 

      Further to your comment, the behavior described was not reproduced by my side.

      Thanks.

      Mahmoud

      To give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.
      BMBAuthor
      Associate II
      September 15, 2026

      My IDE does not list any files for folders with spaces. (STM32CubeIDE 2.2.0).

      Mahmoud Ben RomdhaneBest answer
      ST Technical Moderator
      September 16, 2026

      Hello ​@BMB 

      I recommend that you try to delete the cache folders under this path: C:\Users\_

       

      I will be waiting for your feedback.

      Thanks.

      Mahmoud 

      To give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.
        BMBAuthor
        Associate II
        September 17, 2026

        This indeed seems to help with the IDE properly finding the referenced files, Thank You!

         

        I also noticed in C:\USers\%USERNAME% file .stm32cubeup

        Is this also a cache file? 

        Is it also under consideration for the problem?

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