ESP32 Forum

I can't find any resource on path length limits for cmake with esp-idf and VSCode.

I should be able to use long paths with cmake on windows by setting registry key HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\FileSystem LongPathsEnabled to 1, which I have and rebooted my machine.

However when I build I still get an error with explanation "The maximum full path to an object file is 250
characters (see CMAKE_OBJECT_PATH_MAX)."

I can find no CMAKE_OBJECT_PATH_MAX setting, if I add it to my CMakeLists.txt and set it to say 260 it is ignored and the same error persists.

How can ESP-IDF be made to work with long file paths on Windows?
Thanks
Adam

unfortunately the same problem, no solution .

I hope this bumps this issue and someone can give us some insight.

Which IDF version and which CMake version are you folks using?

IIRC this was solved in CMake 3.23 and later by https://gitlab.kitware.com/cmake/cmake/ ... e4007c477a.

In November I was a brand new install, the most up-to-date versions of everything were downloaded and used.

skanky wrote: ↑

Tue Jul 11, 2023 9:42 am

In November I was a brand new install, the most up-to-date versions of everything were downloaded and used.

Any solution you were able to find?

No, had nothing back from Espressif here so had to work around it and have done ever since

Any Update Regarding the issue. I am also facing the same thing.