CMake Error at CMake/LinuxToolchain.cmake:53 (message): Could not find Unreal Engine clang sysroot.

[XLR8-VISION]

Hello everyone,

when running this command: sudo -E env GIT_LOCAL_CREDENTIALS=github_username@github_token ./CarlaSetup.sh

I get following error message:

Inside the CarlaSetup.sh the line 113 says:

So whe I run the command of line 113 I get following error:

Does anyone know how to solve this?

---

CARLA version: 0.10.0 + UE 5.5
Platform/OS: Ubuntu 22.04
Problem you have experienced: Could not find Unreal Engine clang sysroot.
What you expected to happen: The setup should finish without errors
Steps to reproduce:
cd CarlaUE5
sudo -E env GIT_LOCAL_CREDENTIALS=github_username@github_token ./CarlaSetup.sh

[MarcelPiNacy-CVC]

Can you verify if UE5 is properly built? Try running ./Setup.sh && ./GenerateProjectFiles.sh && make in the unreal engine folder (it seems to be /home/ubuntu/CarlaUE5). Maybe a previous setup failed and left UE5 in a partially built state. I will add an argument to CarlaSetup to handle this case later.

[XLR8-VISION]

The Setup.sh and the GenerateProjectFile.sh do not exist (yet?).

[MarcelPiNacy-CVC]

You don't have the correct path in CARLA_UNREAL_ENGINE_PATH. Update the variable to point to where you UE5 resides. It might be in ../UnrealEngine5_carla relative to CARLA's directory. If this path doesn't exist, delete the environment variable from ~/.bashrc and rerun setup.

[XLR8-VISION]

Hi @MarcelPiNacy-CVC

It is pretty confusing, because the wrong folder is named CarlaUE5 and the correct folder is named UnrealEngine.

We can close this issue now as solved. Thank you for your quick support!