WARNING: tool esp32ulp-elf version 2.38_20240113 is installed, but has reported version unknown (IDFGH-13738)

[mjdswan]

Answers checklist.

• I have read the documentation ESP-IDF Programming Guide and the issue is not addressed there.
• I have updated my IDF branch (master or release) to the latest version and checked that the issue is present there.
• I have searched the issue tracker for a similar issue and not found a similar issue.

IDF version.

ESP-IDF v5.3.1

Operating System used.

Windows

How did you build your project?

Command line with idf.py

If you are using Windows, please specify command line type.

CMD

What is the expected behavior?

Successfully run the build script.

What is the actual behavior?

I have a problem where esp32ulp-elf always reports version unknown. This began happening on ESP-IDF v5.2.2, but I could usually recover it by running install.bat. It started to become a more persistent problem so I updated to ESP-IDF v5.3.1, however it is still happening. The log below is only the relevant part of the install script run, it completes but then if I run export.bat, it reports the version unknown for esp32ulp-elf and prompts to run install.bat again.

C:\Users\mswan\.espressif\Espressif\frameworks\esp-idf-v5.3.1>install
Installing ESP-IDF tools
Selected targets are: esp32c2, esp32, esp32s3, esp32c6, esp32c5, esp32c61, esp32p4, esp32h2, esp32c3, esp32s2
Current system platform: win64
Installing tools: xtensa-esp-elf-gdb, riscv32-esp-elf-gdb, xtensa-esp-elf, riscv32-esp-elf, esp32ulp-elf, cmake, openocd-esp32, ninja, idf-exe, ccache, dfu-util, esp-rom-elfs
Skipping [email protected]_20240403 (already installed)
Skipping [email protected]_20240403 (already installed)
Skipping [email protected]_20240530 (already installed)
Skipping [email protected]_20240530 (already installed)
WARNING: tool esp32ulp-elf version 2.38_20240113 is installed, but has reported version unknown
Installing [email protected]_20240113
file esp32ulp-elf-2.38_20240113-win64.zip is already downloaded
WARNING: destination path already exists, removing
Extracting C:\Users\mswan\.espressif\Espressif\dist\esp32ulp-elf-2.38_20240113-win64.zip to C:\Users\mswan\.espressif\Espressif\tools\esp32ulp-elf\2.38_20240113
WARNING: tool esp32ulp-elf version 2.38_20240113 is installed, but reporting version unknown
Skipping [email protected] (already installed)
Skipping [email protected] (already installed)
Skipping [email protected] (already installed)
Skipping [email protected] (already installed)
Skipping [email protected] (already installed)
Skipping [email protected] (already installed)
Skipping esp-rom-elfs@20240305 (already installed)
Setting up Python environment
Python 3.11.2

Steps to reproduce.

1. Install ESP-IDF v5.3.1 using offline installer esp-idf-tools-setup-offline-5.3.1.exe
2. Open ESP-IDF CMD prompt.
3. Run idf.py set-target esp32c6 (for example)

Build or installation Logs.

No response

More Information.

No response

[jakub-kocka]

Hello @mjdswan,
We are sorry for the inconvenience.
Unfortunately, I have not been able to reproduce your issue on the clean Windows installation with just ESP-IDF installed. So it will probably be an issue with your environment.

The installation was probably not fully correct. Can you try to reinstall the ESP-IDF? (https://dl.espressif.com/dl/esp-idf/)

And can you choose another destination for the installation, because the PATH part with the tools .espressif\Espressif\ doesn't look correct, maybe this might be the issue.

Also please check the User Environmental Variables in the IDF_TOOLS_PATH - it should be the PATH to the directory where the tools directory is located (the same as you chose during the installation process)

And if it is possible you can try the PowerShell terminal as well - if the behavior will be the same.

[dobairoland]

WARNING: tool esp32ulp-elf version 2.38_20240113 is installed, but has reported version unknown

The issue seems to be restricted to the ULP tool only. I could help to go to a clean terminal Window and running the tool manually with only --version argument. This usually prints some clue (e.g. missing DLL) which might help to solve the issue.

[dobairoland]

I'm closing this for inactivity. Please let us know if this is still a valid issue and we'll reopen.