ue5devStable0.1 does not build

[NeoGruber]

CARLA version: ue5devStable0.1 (0.10.0 ?)
Platform/OS: Ubuntu 22.04
Problem you have experienced: project does not build
What you expected to happen: hey, :) I faced the issue that the ue5devStable0.1 branch is not building anymore due to the following reason...
Steps to reproduce:

• pulling the branch
• executing the Setup.sh script

I do get the following build error:

CMake Error at CMakeLists.txt:34 (project):
  The CMAKE_C_COMPILER:

    /home/ngruber/Documents/carla/UnrealEngine5_carla/Engine/Extras/ThirdPartyNotUE/SDKs/HostLinux/Linux_x64/v22_clang-16.0.6-centos7/x86_64-unknown-linux-gnu/bin/clang

  is not a full path to an existing compiler tool.

  Tell CMake where to find the compiler by setting either the environment
  variable "CC" or the CMake cache entry CMAKE_C_COMPILER to the full path to
  the compiler, or to the compiler name if it is in the PATH.


CMake Error at CMakeLists.txt:34 (project):
  The CMAKE_CXX_COMPILER:

    /home/ngruber/Documents/carla/UnrealEngine5_carla/Engine/Extras/ThirdPartyNotUE/SDKs/HostLinux/Linux_x64/v22_clang-16.0.6-centos7/x86_64-unknown-linux-gnu/bin/clang++

  is not a full path to an existing compiler tool.

  Tell CMake where to find the compiler by setting either the environment
  variable "CXX" or the CMake cache entry CMAKE_CXX_COMPILER to the full path
  to the compiler, or to the compiler name if it is in the PATH.


CMake Error at CMakeLists.txt:34 (project):
  The CMAKE_ASM_COMPILER:

    /home/ngruber/Documents/carla/UnrealEngine5_carla/Engine/Extras/ThirdPartyNotUE/SDKs/HostLinux/Linux_x64/v22_clang-16.0.6-centos7/x86_64-unknown-linux-gnu/bin/clang

  is not a full path to an existing compiler tool.

  Tell CMake where to find the compiler by setting either the environment
  variable "ASM" or the CMake cache entry CMAKE_ASM_COMPILER to the full path
  to the compiler, or to the compiler name if it is in the PATH.

The reason for that is, that the newest Unreal Engine fork is pulled inside the build script:

# part of the Setup.sh script
else
    echo "Found UnrealEngine5 $CARLA_UNREAL_ENGINE_PATH - FAIL"
    echo "Cloning CARLA UnrealEngine5..."
    pushd ..
    git clone -b ue5-dev-carla https://github.com/CarlaUnreal/UnrealEngine.git UnrealEngine5_carla
    pushd UnrealEngine5_carla
    echo -e '\n#CARLA UnrealEngine5\nexport CARLA_UNREAL_ENGINE_PATH='$PWD >> ~/.bashrc
    export CARLA_UNREAL_ENGINE_PATH=$PWD
    popd
    popd
    echo "CARLA UnrealEngine5 Installed..."

ls ../UnrealEngine5_carla/Engine/Extras/ThirdPartyNotUE/SDKs/HostLinux/Linux_x64/
v23_clang-18.1.0-rockylinux8

this version uses the v23_clang-18.1.0-rockylinux8 compiler instead of the v22_clang-16.0.6-centos7 that is required by the build scripts. I wanted to change that, but unfortunately I was not able to make it work. I hope you can fix that, thank you very much!

Greetings, Neo.

[Blyron]

Hello! The stable version tag was for a project. We are going to delete it. For now, I suggest you to use ue5-dev branch. The 0.1 hasn't any vehicles available. Only sensors

[NeoGruber]

Alright, thank you! Unfortunately, switching the branch and executing the Script again, I still get the same build issue. Maybe Unreal Engine did something there?

[Blyron]

make sure to run git clean -fdx in both repos, add the UE5 path variable to the enviorment
CARLA_UNREAL_ENGINE_PATH=/home/cvc-246/UnrealEngine5_carla

and then run the CarlaSetup script