STM32 Cube Programmer Custom Loader Not Found causing error

[J.Christ]

We have a custom loader from one of our boards.  It is working in STM32 Cube MX Prog V2.16 but when I launch V2.19 and try to connect to a unrelated boards I get this error:

The error is understandable because the path to the loaders is incorrect.  The issue is I never told V2.19 to use this external loader and it doesn't even show up in the list of available loaders.  It some how figured out that I have used this loader in the past (but it didn't quite figure out the correct location of the loader) and for some reason it is trying to access it.  I mess with loaders so infrequently I have no idea how to fix this issue.

The custom loader does show up in V2.16 and doesn't produce this error:

Suggestions?

Jacob

[Imen.D]

Hello @J.Christ ,

What is your hardware board ? Is it a Nucleo or custom board? 

Does have any protections enabled? If yes, try disable the read protection.

Maybe you have the same issue as this thread: Solved: STM32CubeProgrammer cannot connect to MCU

[MRech.1]

There is a similar thread on https://community.st.com/t5/stm32cubeprogrammer-mcus/unable-to-flash-with-stm32cubeprogrammer/td-p/702988

[Aziz BRIGUI]

Hello,

That's because the loader value is cached (For all versions). To workaround this:

1- Close CubeProgrammer

2- Go to "C:\Users\[YOUR_USER_NAME]\STMicroelectronics\STM32CubeProgrammer" and delete "config.properties" file

3- Reopen STM32CubeProgrammer.

PS: If you're on Linux, the path is "/home/[YOUR_USER_NAME]/.STM32CubeProgrammer"

You should no longer have the pop-up.

Hope this helps,

Aziz

[MRech.1]

Thanks Aziz. Unfortunately deleting this file does not help (on Linux it is located at /home/[user]/.STM32CubeProgrammer/config.properties)