After STM32CubeMX generated the code, the file I created earlier disappeared

[sky_lin]

Hello，
         After I use STM32CUBEIDE's built-in STM32CUBEMX to generate code, the source files and header files under the folder I created myself disappeared, how can this be solved?

        Before I use STM32CUBEIDE's built-in STM32CUBEMX to generate code：

      After I use STM32CUBEIDE's built-in STM32CUBEMX to generate code,all the files I created disappeared.

     The compilation path of the file I created has already been saved, and I also checked the keep user code when re-generating option

[Souhaib MAZHOUD]

Hello @sky_lin 

Could you attach your project to investigate the issue?

KR,

Souhaib

[sky_lin]

Yeah , I have uploaded my project.

[Bob S]

Also see this (in the "too late to help this time but will help NEXT time): https://community.st.com/t5/stm32cubeide-mcus/my-usb-cdc-if-file-was-deleted-by-code-automatically-without/m-p/814264#M36899

Even the best written tools can fall prey to OS/hardware issues beyond their control and corrupt your data.

[Souhaib MAZHOUD]

Hello @sky_lin 

Could you please check the copy only the necessary files, this is will keep your custom files.

KR,

Souhaib

[sky_lin]

I checked this option and changed it to the next option, but the problem persists

[Souhaib MAZHOUD]

Hello @sky_lin 

Thank you for your detailed explanation.

The dedicated team are already aware of this issue (Internal Ticket number 196837), and fix will be implemented soon. In meantime, I recommend not placing your folder inside any CubeMX-generated directories (Drivers, Core, Middleware). Instead, please place it directly under the project root.

BR,

Souhaib