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Published 20 hours ago • verified publisher icon carla-simulator

Not being able to build & launch the editor on Ubuntu 24.04

Open CarlaEnjoyer opened this issue 7 months ago • 3 comments

Setup Describe the setup you are using to run CARLA along with its version:

  • CARLA version: 0.10.0
  • Platform: Ubuntu 24.04
  • Python version: 3.12.9
  • GPU: RTX 3090
  • GPU Drivers: 570.86.15

Describe the bug When trying to build and launch the editor with the cmake --build Build --target launch command it throws an error when trying to Link (lld) CarlaUnreal (UBA disabled) Steps to reproduce

  • Build UE5 via the extended instructions from the documentation.
  • Set the env variable and then build carla ny following the normal setup instead of the extended instructions since there is no cmake for a linux release
  • configure and build carla and the python api
  • try to build and launch the editor

Expected behavior The Carla editor Builds and launches.

Logs Log started at 04/24/2025 14:53:38 (2025-04-24T12:53:38Z) No config file at /home/user/repos/unreal_engine_carla_0.10.0/UnrealEngine/Engine/Restricted/NotForLicensees/Programs/UnrealBuildTool/BuildConfiguration.xml No config file at /usr/share/Unreal Engine/UnrealBuildTool/BuildConfiguration.xml No config file at /home/user/snap/code/190/.local/share/Unreal Engine/UnrealBuildTool/BuildConfiguration.xml No config file at /home/user/Documents/Unreal Engine/UnrealBuildTool/BuildConfiguration.xml Configuration will be read from: /home/user/repos/unreal_engine_carla_0.10.0/UnrealEngine/Engine/Saved/UnrealBuildTool/BuildConfiguration.xml /home/user/.config/Unreal Engine/UnrealBuildTool/BuildConfiguration.xml Setting temp directory to '/tmp/UnrealBuildTool/d8b99b33' Registering build platform: UnrealBuildTool.AndroidPlatformFactory Unable to find valid SDK(s) for Android: Found Sdk Version, MinRequired=r25b, MaxRequired=r27. Found AutoSdk Version, Required=r25b. Registering build platform: Android - buildable: False Registering build platform: UnrealBuildTool.IOSPlatformFactory Registering build platform: IOS - buildable: False Registering build platform: UnrealBuildTool.LinuxPlatformFactory Linux Installed SDK(s): Version_Sdk=v23_clang-18.1.0-rockylinux8, CurrentVersion_Sdk=v23_clang-18.1.0-rockylinux8, Version_AutoSdk=v23_clang-18.1.0-rockylinux8, CurrentVersion_AutoSdk= Registering build platform: Linux - buildable: True LinuxArm64 Installed SDK(s): Version_Sdk=v23_clang-18.1.0-rockylinux8, CurrentVersion_Sdk=v23_clang-18.1.0-rockylinux8, Version_AutoSdk=v23_clang-18.1.0-rockylinux8, CurrentVersion_AutoSdk= Registering build platform: LinuxArm64 - buildable: True Registering build platform: UnrealBuildTool.MacPlatformFactory Registering build platform: Mac - buildable: False Registering build platform: UnrealBuildTool.TVOSPlatformFactory Registering build platform: TVOS - buildable: False Registering build platform: UnrealBuildTool.WindowsPlatformFactory Registering build platform: Win64 - buildable: False Registering build platform: UnrealBuildTool.VisionOSPlatformFactory Registering build platform: VisionOS - buildable: False Command line: /home/user/repos/unreal_engine_carla_0.10.0/UnrealEngine/Engine/Binaries/DotNET/UnrealBuildTool/UnrealBuildTool.dll CarlaUnreal Linux Development -project=/home/user/repos/unreal_engine_carla_0.10.0/CarlaUE5/Unreal/CarlaUnreal/CarlaUnreal.uproject -game -buildscw Log file: /home/user/repos/unreal_engine_carla_0.10.0/UnrealEngine/Engine/Programs/UnrealBuildTool/Log.txt Deleting old log file: /home/user/repos/unreal_engine_carla_0.10.0/UnrealEngine/Engine/Programs/UnrealBuildTool/Log-backup-2025.04.24-11.31.43.txt

Using 'git status' to determine working set for adaptive non-unity build (/home/user/repos/unreal_engine_carla_0.10.0/UnrealEngine). Waiting for 'git status' command to complete Generated code is up to date. CarlaUnreal: Produced item "/home/user/repos/unreal_engine_carla_0.10.0/CarlaUE5/Unreal/CarlaUnreal/Binaries/Linux/CarlaUnreal" doesn't exist. Module.Carla.3.cpp: Dependency /home/user/repos/unreal_engine_carla_0.10.0/CarlaUE5/LibCarla/source/util/ue-header-guard-begin.h is newer than the last execution of the action: 04/24/2025 14:48:29 vs 04/24/2025 14:05:04 Module.Carla.4.cpp: Dependency /home/user/repos/unreal_engine_carla_0.10.0/CarlaUE5/LibCarla/source/util/ue-header-guard-begin.h is newer than the last execution of the action: 04/24/2025 14:48:29 vs 04/24/2025 14:05:05 Module.Carla.5.cpp: Dependency /home/user/repos/unreal_engine_carla_0.10.0/CarlaUE5/LibCarla/source/util/ue-header-guard-begin.h is newer than the last execution of the action: 04/24/2025 14:48:29 vs 04/24/2025 14:05:05 Module.Carla.6.cpp: Dependency /home/user/repos/unreal_engine_carla_0.10.0/CarlaUE5/LibCarla/source/util/ue-header-guard-begin.h is newer than the last execution of the action: 04/24/2025 14:48:29 vs 04/24/2025 14:05:04 Module.Carla.7.cpp: Dependency /home/user/repos/unreal_engine_carla_0.10.0/CarlaUE5/LibCarla/source/util/ue-header-guard-begin.h is newer than the last execution of the action: 04/24/2025 14:48:29 vs 04/24/2025 14:05:03 Module.Carla.8.cpp: Dependency /home/user/repos/unreal_engine_carla_0.10.0/CarlaUE5/LibCarla/source/util/ue-header-guard-begin.h is newer than the last execution of the action: 04/24/2025 14:48:29 vs 04/24/2025 14:05:11 Module.Carla.9.cpp: Dependency /home/user/repos/unreal_engine_carla_0.10.0/CarlaUE5/LibCarla/source/util/ue-header-guard-begin.h is newer than the last execution of the action: 04/24/2025 14:48:29 vs 04/24/2025 14:05:19 CarlaUnreal.cpp: Dependency /home/user/repos/unreal_engine_carla_0.10.0/CarlaUE5/LibCarla/source/util/ue-header-guard-begin.h is newer than the last execution of the action: 04/24/2025 14:48:29 vs 04/24/2025 14:05:05 PCH.CarlaUnreal.h: Dependency /home/user/repos/unreal_engine_carla_0.10.0/CarlaUE5/LibCarla/source/util/ue-header-guard-begin.h is newer than the last execution of the action: 04/24/2025 14:48:29 vs 04/24/2025 14:04:58 CarlaUnreal.target: Produced item "/home/user/repos/unreal_engine_carla_0.10.0/CarlaUE5/Unreal/CarlaUnreal/Binaries/Linux/CarlaUnreal.target" doesn't exist. Module.Carla.1.cpp: Dependency /home/user/repos/unreal_engine_carla_0.10.0/CarlaUE5/LibCarla/source/util/ue-header-guard-begin.h is newer than the last execution of the action: 04/24/2025 14:48:29 vs 04/24/2025 14:04:59 PCH.Carla.h: Dependency /home/user/repos/unreal_engine_carla_0.10.0/CarlaUE5/LibCarla/source/util/ue-header-guard-begin.h is newer than the last execution of the action: 04/24/2025 14:48:29 vs 04/24/2025 14:04:51 Module.Carla.10.cpp: Dependency /home/user/repos/unreal_engine_carla_0.10.0/CarlaUE5/LibCarla/source/util/ue-header-guard-begin.h is newer than the last execution of the action: 04/24/2025 14:48:29 vs 04/24/2025 14:05:24 Module.Carla.11.cpp: Dependency /home/user/repos/unreal_engine_carla_0.10.0/CarlaUE5/LibCarla/source/util/ue-header-guard-begin.h is newer than the last execution of the action: 04/24/2025 14:48:29 vs 04/24/2025 14:06:48 Module.Carla.12.cpp: Dependency /home/user/repos/unreal_engine_carla_0.10.0/CarlaUE5/LibCarla/source/util/ue-header-guard-begin.h is newer than the last execution of the action: 04/24/2025 14:48:29 vs 04/24/2025 14:05:34 Module.Carla.13.cpp: Dependency /home/user/repos/unreal_engine_carla_0.10.0/CarlaUE5/LibCarla/source/util/ue-header-guard-begin.h is newer than the last execution of the action: 04/24/2025 14:48:29 vs 04/24/2025 14:05:05 Module.Carla.2.cpp: Dependency /home/user/repos/unreal_engine_carla_0.10.0/CarlaUE5/LibCarla/source/util/ue-header-guard-begin.h is newer than the last execution of the action: 04/24/2025 14:48:29 vs 04/24/2025 14:05:05 Checking for live coding mutex: Global\LiveCoding_+home+user+repos+unreal_engine_carla_0.10.0+CarlaUE5+Unreal+CarlaUnreal+Binaries+Linux+CarlaUnreal Building CarlaUnreal... Determining max actions to execute in parallel (12 physical cores, 24 logical cores) Executing up to 12 processes, one per physical core Using Unreal Build Accelerator local executor to run 18 action(s) Storage capacity 40Gb Deleting old log file: /home/user/repos/unreal_engine_carla_0.10.0/UnrealEngine/Engine/Programs/UnrealBuildTool/Log-backup-2025.04.21-10.10.17.uba ---- Starting trace ---- UbaSessionServer - Disable remote execution (remote sessions will finish current processes) ------ Building 18 action(s) started ------ [1/18] Compile PCH.Carla.h [2/18] Compile PCH.CarlaUnreal.h [3/18] Compile Module.Carla.1.cpp [4/18] Compile Module.Carla.7.cpp [5/18] Compile Module.Carla.6.cpp [6/18] Compile Module.Carla.3.cpp [7/18] Compile CarlaUnreal.cpp [8/18] Compile Module.Carla.13.cpp [9/18] Compile Module.Carla.4.cpp [10/18] Compile Module.Carla.5.cpp [11/18] Compile Module.Carla.2.cpp [12/18] Compile Module.Carla.8.cpp [13/18] Compile Module.Carla.9.cpp [14/18] Compile Module.Carla.10.cpp [15/18] Compile Module.Carla.12.cpp [16/18] Compile Module.Carla.11.cpp In file included from /home/user/repos/unreal_engine_carla_0.10.0/CarlaUE5/Unreal/CarlaUnreal/Intermediate/Build/Linux/x64/CarlaUnreal/Development/Carla/Module.Carla.11.cpp:48: /home/user/repos/unreal_engine_carla_0.10.0/CarlaUE5/Unreal/CarlaUnreal/Plugins/Carla/Source/Carla/Server/CarlaServer.cpp:495:46: warning: 'GetNamesOfAllActors' is deprecated: This command no longer makes sense since the apply_textures API relies on IDs. [-Wdeprecated-declarations] 495 | error: undefined symbol: __isoc23_strtol

referenced by pugixml.cpp pugixml.cpp.o:(pugi::impl::(anonymous namespace)::convert_number_to_string(double, pugi::impl::(anonymous namespace)::xpath_allocator*)) in archive /home/user/repos/unreal_engine_carla_0.10.0/CarlaUE5/Build/LibCarla/libcarla-server.a referenced by server.cc server.cc.o:(clmdep_asio::detail::socket_ops::inet_pton(int, char const*, void*, unsigned long*, std::__1::error_code&)) in archive /home/user/repos/unreal_engine_carla_0.10.0/CarlaUE5/Build/_deps/rpclib-build/librpc.a referenced by router.cpp router.cpp.o:(boost::asio::detail::socket_ops::inet_pton(int, char const*, void*, unsigned long*, boost::system::error_code&)) in archive /home/user/repos/unreal_engine_carla_0.10.0/CarlaUE5/Build/LibCarla/libcarla-server.a clang++: error: linker command failed with exit code 1 (use -v to see invocation) Trace file written to /home/user/repos/unreal_engine_carla_0.10.0/UnrealEngine/Engine/Programs/UnrealBuildTool/Log.uba with size 12.4kb Total time in Unreal Build Accelerator local executor: 137.44 seconds Total execution time: 145.24 seconds CompilationResultException: OtherCompilationError at UnrealBuildTool.ActionGraph.ExecuteActionsAsync(BuildConfiguration BuildConfiguration, List1 ActionsToExecute, List1 TargetDescriptors, ILogger Logger, IActionArtifactCache actionArtifactCache) in /home/user/repos/unreal_engine_carla_0.10.0/UnrealEngine/Engine/Source/Programs/UnrealBuildTool/System/ActionGraph.cs:line 471 at UnrealBuildTool.BuildMode.BuildAsync(TargetMakefile[] Makefiles, List1 TargetDescriptors, BuildConfiguration BuildConfiguration, BuildOptions Options, FileReference WriteOutdatedActionsFile, ILogger Logger, String ActionTypeFilter) in /home/user/repos/unreal_engine_carla_0.10.0/UnrealEngine/Engine/Source/Programs/UnrealBuildTool/Modes/BuildMode.cs:line 823 at UnrealBuildTool.BuildMode.BuildAsync(List1 TargetDescriptors, BuildConfiguration BuildConfiguration, ISourceFileWorkingSet WorkingSet, BuildOptions Options, FileReference WriteOutdatedActionsFile, ILogger Logger, Boolean bSkipPreBuildTargets, String ActionTypeFilter) in /home/user/repos/unreal_engine_carla_0.10.0/UnrealEngine/Engine/Source/Programs/UnrealBuildTool/Modes/BuildMode.cs:line 415 at UnrealBuildTool.BuildMode.ExecuteAsync(CommandLineArguments Arguments, ILogger Logger) in /home/user/repos/unreal_engine_carla_0.10.0/UnrealEngine/Engine/Source/Programs/UnrealBuildTool/Modes/BuildMode.cs:line 255 at UnrealBuildTool.UnrealBuildTool.Main(String[] ArgumentsArray) in /home/user/repos/unreal_engine_carla_0.10.0/UnrealEngine/Engine/Source/Programs/UnrealBuildTool/UnrealBuildTool.cs:line 687 WriteFileIfChanged() wrote 0 changed files of 0 requested writes. Timeline:

[ 0.000] 0.000 [145.248] TArray<FString> NamesFString = GameMode->GetNamesOfAllActors(); | ^ /home/user/repos/unreal_engine_carla_0.10.0/CarlaUE5/Unreal/CarlaUnreal/Plugins/Carla/Source/Carla/Game/CarlaGameModeBase.h:118:5: note: 'GetNamesOfAllActors' has been explicitly marked deprecated here 118 | [[deprecated("This command no longer makes sense since the apply_textures API relies on IDs.")]] | ^ 1 warning generated. [17/18] Link (lld) CarlaUnreal (UBA disabled) Link (lld) CarlaUnreal (UBA disabled): Exited with error code 1 . The build will fail. Link (lld) CarlaUnreal (UBA disabled): WorkingDirectory /home/user/repos/unreal_engine_carla_0.10.0/UnrealEngine/Engine/Source Link (lld) CarlaUnreal (UBA disabled): /bin/sh "/home/user/repos/unreal_engine_carla_0.10.0/CarlaUE5/Unreal/CarlaUnreal/Intermediate/Build/Linux/x64/CarlaUnreal/Development/Link-CarlaUnreal.link.sh" ld.lld:

Additional context I had to install UE5 by using the extended instructions and then proceed with the normal setup but I reference the UE5 with my env variable. Also using a custom python environment.

CarlaEnjoyer avatar Apr 24 '25 13:04 CarlaEnjoyer

I face the same problem

XinHu98 avatar May 03 '25 17:05 XinHu98

Problem still exists on Ubuntu 24.04, carla unreal engine fork commit eea6a8e677e3509a3e56122d69e3d380bb624bbf and carla commit 83a7d44d4693bbfc2509186e1867214b64b14c12 Error:

[1/2] Link (lld) CarlaUnreal (UBA disabled)
ld.lld: error: undefined symbol: __isoc23_strtol
>>> referenced by server.cc
>>>               server.cc.o:(clmdep_asio::detail::socket_ops::inet_pton(int, char const*, void*, unsigned long*, std::__1::error_code&)) in archive /mnt/carla-src/Build/_deps/rpclib-build/librpc.a
>>> referenced by pugixml.cpp
>>>               pugixml.cpp.o:(pugi::impl::(anonymous namespace)::convert_number_to_string(double, pugi::impl::(anonymous namespace)::xpath_allocator*)) in archive /mnt/carla-src/Build/LibCarla/libcarla-server.a
>>> referenced by router.cpp
>>>               router.cpp.o:(boost::asio::detail::socket_ops::inet_pton(int, char const*, void*, unsigned long*, boost::system::error_code&)) in archive /mnt/carla-src/Build/LibCarla/libcarla-server.a
clang++: error: linker command failed with exit code 1 (use -v to see invocation)

Dockerfile:

FROM Ubuntu:24.04

# use UTC as default timezone
ENV TZ=Etc/UTC
# debian-like images default to ascii
ENV LANG=C.UTF-8

# carla build apt deps
# from https://github.com/carla-simulator/carla/blob/ue5-dev/Util/SetupUtils/InstallPrerequisites.sh
ARG APT_PACKAGES="\
    build-essential \
    make \
    ninja-build \
    libvulkan1 \
    libpng-dev \
    libtiff5-dev \
    libjpeg-dev \
    tzdata \
    sed \
    curl \
    libtool \
    rsync \
    libxml2-dev \
    git \
    git-lfs \
    python3 \
    python3-dev \
    python3-pip \
    python3-build \
    python3-venv \
    cmake \
"
ARG DEBIAN_FRONTEND=noninteractive
RUN apt-get update && apt-get install -y $APT_PACKAGES && apt-get clean

Commands (assuming UE5 is built and located at CARLA_UNREAL_ENGINE_PATH):

$ cmake -G Ninja -S . -B Build \
            --toolchain=$PWD/CMake/Toolchain.cmake \
            -DCMAKE_BUILD_TYPE=Release \
            -DENABLE_ROS2=ON \
            -DBUILD_CARLA_UNREAL=ON \
            -DCARLA_UNREAL_ENGINE_PATH=$CARLA_UNREAL_ENGINE_PATH \
            -DCARLA_UNREAL_BUILD_TYPE=Shipping
...
$ cmake --build Build
$ cmake --build Build --target package

Thoughts: Error __isoc23_strtol indicates a C++23 variant of a function call? If so, not sure if clang 18.1 supports the necessary c++23 functionality and I thought CARLA was set to use C++20 via cmake settings.

qhaas avatar May 03 '25 20:05 qhaas 

> /CarlaSetup.sh -i -p

I tried adding the following code to an arbitrary .cpp file in LibCarla as a temporary workaround, e.g., LibCarla/source/carla/StringUtil.cpp

extern "C" long __isoc23_strtol(const char* nptr, char** endptr, int base) {
    return strtol(nptr, endptr, base);
}

I successfully built carl, but I think should be removed once upstream support is added. Maybe it has better solutions.

yss-al avatar Jun 09 '25 16:06 yss-al

@yss-al is there anything else you did other than adding these 3 lines of code? Do they have to be at a specific location?

Im facing the same issue on Ubuntu 24.04 and can't seem to find a workaround...

Shieldine avatar Jul 07 '25 13:07 Shieldine

Nevermind. What did it for me was not putting this code into StringUtil.cpp, but rather following the trace to: LibCarla/source/carla/streaming/detail/tcp/Server.cpp

and adding:

#include <cstdlib>

extern "C" long __isoc23_strtol(const char* nptr, char** endptr, int base) {
    return strtol(nptr, endptr, base);
}

below #include <memory> (not sure if the include order matters). Let's hope we'll see a better fix soon

Shieldine avatar Jul 07 '25 14:07 Shieldine

Nevermind. What did it for me was not putting this code into StringUtil.cpp, but rather following the trace to: LibCarla/source/carla/streaming/detail/tcp/Server.cpp

and adding:

#include <cstdlib>

extern "C" long __isoc23_strtol(const char* nptr, char** endptr, int base) {
    return strtol(nptr, endptr, base);
}

below #include <memory> (not sure if the include order matters). Let's hope we'll see a better fix soon

This works for me, thank you!

Hope Carla developers will fix this in sooner version.

Maplefsnow avatar Nov 12 '25 16:11 Maplefsnow