STMCubeMX 5.4.0 Problem to Generate Code for MDK-ARM V5.27 after updating from 5.3.0

[GS1]

I have a recently started new project (STM32F446RETx), which was generated without problems 3 days ago using 5.3.0 and Keil 5.27.0.

Now I thought it would be a good idea to proceed with this project on the latest release of CubeMS V. 5.4.0. Now I can not generate code for the Keil compiler any more :pouting_face:

"The Code is sussessfully generated under ...

but MDK-ARM V5.27project generation have a problem."

I updated Keil to 5.28.0. Same issue.

The path has no special characters. So this won't be the reason.

I tried to generate a plain new project with the same processor, activate 2 pins as output. Same problem.

When trying to open this new project file in Keil, the compiler complains:

Device not found "??device??"

Vendor STMicroelectronics.

I checked the with the Pack Installer :STM32F446RETx was installed and "Up to date".

Conclusion:

The various experiences updating Cube releases are a desaster! I am really scared to update Cube to a new release! I always hope that the new release would fix previous problems and issues, but with every update I encounter new problems!

If I would send these kinds of updates to my customers I would be out of business since long!

[GS1]

I tried to go back to Version 5.3.0 and then that one did not work any longer either.

After Installation of Cube V. 5.4.0 I had to update to Java 64 Bit version (was requested by Cube), which I installed.

Uninstalling this Java update cured the problem and 5.3.0. is working again now.

May be this information helps to find the solution for the problem.

[LMart.1696]

thanks @GS@S​ !! It worked for me.

I spend 2 weeks trying everything and thanks to you it work !!

[SAlek.3]

Today I noticed this problem too (СubeMX version 6.0.0). I was sure that the problem was in Java and was not mistaken. I reinstalled Java several times using the installer downloaded from the Java.com website but did not help. Then I downloaded the full installation (offline version), reinstalled it and the problem was solved.

[IMAAO.1]

I have the same problem wih CubeMX 6.0, Could you please explain me more how did you resolve the prolem?

[PKulk.2]

I was facing the same issue for many days & I also tried to switch from versions of STMCubeMx & diferent IDEs.

But it is very silly issue & solution to it also very easy.

You just have to install the Java Run Time Environment (JRE) 8 or below JRE 10 & boom!!! it will work properly with any IDE.

Uninstall the JRE latest versions if you have any(e.g. JRE 14 or JRE 15) & keep only one JRE10 or below v10.

I'm using JRE8. STMCubeMx doesn't support JRE above 10.

You don't have to change anything else. (Project directory, names etc)

[JPhil.2]

Thanks a lot . For absolute newbies like me this advice was truly helpful.

[NKrau.1]

Hello, I'm having the same problem described above. I've tried uninstalling and reinstalling Java multiple times and I'm not having any luck. I'm running Cube v6.4 and Keil v5.36. Currently I have the JRE 8 installed on my computer downloaded from Oracle. I chose the Windows x86 installation. I'm trying to generate code for an STM32L053C8T Any help would be much appreciated!

[MKell.6]

@NKrau.1​i have download all the necessary file for your MCU, and generated a code with stmcube 6.4v i build the project and it had no errors, i dont own an stm32l0 devices, maybe there is something else not good configured