Garfield++ error

[xuzh]

I am getting the following error reported when installing Garfield++:

For this I reinstalled ROOT again and specifically added -DCMAKE_CXX_STANDARD=17 to the cmake command line. my version of ROOT is 6.30.4. I use the command “root-config --cflags”, and it shows:“-pthread -std=c++17 -m64 -I/home/xuzh/software/root/root_install/include”.
Does this mean my ROOT installation is fine?And what is the problem?

[Danilo]

Hi,

Adding @hschindl in the loop.

Best,
D

[hschindl]

Hi,
did you build ROOT yourself or are you using a precompiled binary distribution?
Which platform and compiler are you using?

[xuzh]

Hello. I installed ROOT by source code. My system is Ubuntu22.04 and my compiler is GCC 11.4.0.

[hschindl]

Hm, strange. I don’t have access to a Ubuntu machine, but the Gitlab pipeline based on the “root:6.30.04-ubuntu22.04” Docker image seems to build fine. Normally you shouldn’t need to specify the C++ standard explicitly…
@Danilo any idea what could be wrong?

[xuzh]

For this reason I also reinstalled geant4 again, still specifying the C++ standard as 17. Despite the reinstallation of both geant4 and root, the reported error persists. I’m not too well versed in this as I’m new to it as well.

[hschindl]

Can you try with a precompiled binary distribution of ROOT?

Releases

[xuzh]

OK, I will try a precompiled version.

[xuzh]

I used a precompiled binary distribution of ROOT(version 6.30.4), it still reported the same errors.

[xuzh]

I’ve solved the problem. The solution was to add ‘set(CMAKE_CXX_STANDARD 17)’ to the first line of Garfield++'s CMakeList.txt file, which looks like it needs to force the C++ standard to be specified, rather than having it auto-detect the ROOT’s C++ standard.
Thanks again for your advice and help!