Building Carla on Mac OSX

[ajax98]

Online I see that there only exist manual for installing and building Carla on Linux. Is it possible for installing and running it on Mac?

[nsubiron]

Hi @ajax98,

Yes, it is possible. However we don't have an automated build system for MacOS, so it would require some effort to make it work.

Please have a look at the progress at #103. Also it might be helpful to check out the documentation for How to build on Linux and the discussion for building on Windows at #21 as the process is basically the same.

Please share your progress here if you find any difficulties. It can be very helpful for other people trying to build on Mac, and eventually we might be able to make an automated system as for Linux.

---

There is a compilation error that is going to appear, you need to replace the block at "Source/Carla/SceneCaptureCamera.cpp" Line 27 by

static constexpr auto DEPTH_MAT_PATH =
#if PLATFORM_LINUX
    TEXT("Material'/Carla/PostProcessingMaterials/DepthEffectMaterial_GLSL.DepthEffectMaterial_GLSL'");
#else
    TEXT("Material'/Carla/PostProcessingMaterials/DepthEffectMaterial.DepthEffectMaterial'");
#endif

This is something we have to fix, but we'll have to test if the default depth material is working well on Mac. Help on this would be appreciated as we don't have here Mac machines to test it.

[nsubiron]

Check out #176 (comment)

[thegleb]

I skimmed the couple threads I've seen here about running Carla on a Mac and I have modified all the files as mentioned, but I keep running into the same issue. The .ueproject seems to get generated but I'm missing a couple of .dylibs, e.g. UE4Editor-Carla.dylib and a second one. Any advice?

Output from xcode when trying to build the CarlaUE4 project:

Undefined symbols for architecture x86_64:
  "FRHICommandListBase::WaitForRHIThreadTasks()", referenced from:
      ASceneCaptureCamera::WritePixelsNonBlocking(float, FRHICommandListImmediate&) const in Module.Carla.cpp.o
  "_GRHICommandList", referenced from:
      ASceneCaptureCamera::WritePixelsNonBlocking(float, FRHICommandListImmediate&) const in Module.Carla.cpp.o
      ASceneCaptureCamera::WritePixels(float) const in Module.Carla.cpp.o
  "FRHICommandListBase::WaitForDispatch()", referenced from:
      ASceneCaptureCamera::WritePixelsNonBlocking(float, FRHICommandListImmediate&) const in Module.Carla.cpp.o
  "FRHICommandListExecutor::ExecuteList(FRHICommandListImmediate&)", referenced from:
      ASceneCaptureCamera::WritePixelsNonBlocking(float, FRHICommandListImmediate&) const in Module.Carla.cpp.o
  "FlushRenderingCommands()", referenced from:
      FServerGameController::Tick(float) in Module.Carla.cpp.o
  "_GIsRunningRHIInSeparateThread_InternalUseOnly", referenced from:
      ASceneCaptureCamera::WritePixelsNonBlocking(float, FRHICommandListImmediate&) const in Module.Carla.cpp.o
  "_GMainThreadBlockedOnRenderThread", referenced from:
      ASceneCaptureCamera::Tick(float) in Module.Carla.cpp.o
  "_GIsThreadedRendering", referenced from:
      ASceneCaptureCamera::Tick(float) in Module.Carla.cpp.o
      FRenderCommand::GetDesiredThread() in Module.Carla.cpp.o
  "_GMaxRHIShaderPlatform", referenced from:
      ASceneCaptureCamera::Tick(float) in Module.Carla.cpp.o
  "FRHICommandListBase::WaitForTasks(bool)", referenced from:
      ASceneCaptureCamera::WritePixelsNonBlocking(float, FRHICommandListImmediate&) const in Module.Carla.cpp.o
  "_GDynamicRHI", referenced from:
      ASceneCaptureCamera::WritePixelsNonBlocking(float, FRHICommandListImmediate&) const in Module.Carla.cpp.o
      ASceneCaptureCamera::WritePixels(float) const in Module.Carla.cpp.o
  "GetImmediateCommandList_ForRenderCommand()", referenced from:
      ASceneCaptureCamera::Tick(float) in Module.Carla.cpp.o
      TGraphTask<ASceneCaptureCamera::Tick(float)::EURCMacro_FWritePixelsNonBlocking>::ExecuteTask(TArray<FBaseGraphTask*, FDefaultAllocator>&, ENamedThreads::Type) in Module.Carla.cpp.o
      TGraphTask<ASceneCaptureCamera::Tick(float)::EURCMacro_FWritePixels>::ExecuteTask(TArray<FBaseGraphTask*, FDefaultAllocator>&, ENamedThreads::Type) in Module.Carla.cpp.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
ERROR: UBT ERROR: Failed to produce item: /Users/gleb/dev/deep-learning-learning/carla/Unreal/CarlaUE4 4.18/Plugins/Carla/Binaries/Mac/UE4Editor-Carla.dylib
Total build time: 26.00 seconds (Local executor: 0.00 seconds)
Command /Users/gleb/UnrealEngine_4.18/Engine/Build/BatchFiles/Mac/Build.sh failed with exit code 5

When I open the project through UE4Editor, it complains about the lack of the dylibs and tries to build them, but fails every time as well.

[thegleb]

Update: got it to complete the build by modifying the Carla.build.cs further:

    PublicDependencyModuleNames.AddRange(
      new string[]
      {
        "Core",
        // ... add other public dependencies that you statically link with here ...
        "RHI", // added this
        "RenderCore" // and this
      }
      );

[analog-cbarber]

I got this working using Xcode 8.2.1, which is based on clang 3.9. I had to modify the scripts to use clang/ clang++ without the version suffix. I did run into one problem that I do not understand:
the Makefile generated by the GenerateProjectFiles script is targeted at Linux instead of Mac :

BUILD = bash "$(UNREALROOTPATH)/Engine/Build/BatchFiles/Linux/Build.sh"
PROJECTBUILD = mono "$(UNREALROOTPATH)/Engine/Binaries/DotNET/UnrealBuildTool.exe"
...
UE4Editor:
         $(BUILD) UE4Editor Linux Development  $(ARGS)

When I manually changed Linux to Mac and add mono to my PATH, I was able to complete the
build. I cannot figure out how to fix the Makefile generation. Invoking the GenerateProjectFiles.sh
script with -Platforms=Mac doesn't do any good. Not sure what I did wrong.

In any case, if I modify the generated Makefile by replacing all instances of Linux with Mac
and replacing modifying the PROJECTBUILD definition to be the following, then the build works:

MONO = "$(UNREALROOTPATH)/Engine/Binaries/ThirdParty/Mono/Mac/bin/mono"
PROJECTBUILD = $(MONO) "$(UNREALROOTPATH)/Engine/Binaries/DotNET/UnrealBuildTool.exe"

[analog-cbarber]

It appears that the -makefiles flag to the UnrealBuildTool does not properly support Mac targets. The -cmakefiles appears to do the right thing, but I have not actually tried doing a build yet. Since it is not clear what version of llvm/clang is used by later releases of Xcode, and the 0.9 release of CARLA is using clang 5.0, I suspect that using cmake will be preferable to Xcode.

[nsubiron]

@analog-cbarber Thanks for the report!

In Linux we use a very specific version of the compiler because we need to link against libc++ (instead of the usual libstdc++ for Linux). In Mac, I imagine we can go with the default compiler installed like we do on Windows.

And for the sh scripts, they have been written for Linux and only tested on Linux, we may need to adapt them.

[analog-cbarber]

That's good, so the Xcode build approach may still be ok? So the main risk would be if CARLA started to depend on C++ features in clang 5.0 that are not yet supported in the Xcode variant?

[nsubiron]

That's likely to happen, in the latest changes in networking code we use C++17 features, most of them already available in previous versions of clang with -std=c++1z but some may not.

[analog-cbarber]

OK. So either I need to figure out how to build properly using actual llvm/clang 5.0 or hope that Xcode supports the required features. It seems that Xcode 10 may be based on 5.0 (see Joky's comment on this thread: https://news.ycombinator.com/item?id=16545037)

[analog-cbarber]

According to https://clang.llvm.org/cxx_status.html, it appears that clang 4.0 should support most of the C++17 features. The only ones I see that are missing are constexpr lambda expressions (P0170R1)
and template argument deduction for class templates (P0091R3 and P0512R0). If you aren't using either of those features, then I would expect clang++ 4.0 and Xcode 9.2 to work. That would be nice if true, since the official 4.19 release appears to be built with Xcode 9.2.

[nsubiron]

I don't think we use any of those features, up until recently all our code base was compiling with clang-3.9 and -std=c++14, it's going to be starting at CARLA 0.9.0 that we move to clang-5.0 and C++17. The C++17 standard has some nice features that may help performance, and hopefully soon will be fully supported by most compilers.

So for now shouldn't be any problems compiling. However, we won't be maintaining compatibility as we simply don't have enough people to maintain it.

[nsubiron]

Hey @analog-cbarber, so after your comments I've been digging in the UE4 toolchains, and they seem to be forcing C++14 in all platforms (as for UE4.19). I think it would be wise for us to restrict our libraries to C++14 too since some of the code may need to compile inside UE4 environment too. So I'm going to keep CARLA 0.9.0 with C++14 standard (still clang-5.0 by default as it's the recommended for UE4.19 in Linux).

I'm a bit sad about it cause I wanted to start using C++17 😄 but at least it's good to keep compatibility since at this point almost every compiler supports C++14.

[analog-cbarber]

You could still probably get away with using C++17 features that are compatible with whatever runtime UE 4.19 is using. I am not sure which ones that would be...

FWIW, the changes I made to get the Mac build to work using Xcode 8.2.1 are here:

https://github.com/analog-garage/carla/commits/mac-build

I won't issue a pull request, because this is hackier than I would like and will require significant reworking for the 0.9 release in any case.

[edufford]

@analog-cbarber, I was able to get Mac command line setup/builds working using homebrew-installed llvm/clang 3.9 with some modifications to the Carla scripts and cmake setup file instead of installing another version of Xcode.

I think the main trick was to prevent the libc++ library conflict with Apple's built-in version by using the -nostdinc++ flag for using an alternate installation of libc++ based on the libcxx docs at:
https://libcxx.llvm.org/docs/UsingLibcxx.html#getting-started

Getting all the directory changes correct for the Unreal Engine command line project build and launch was also a little tricky, but seems to work. My Unreal Engine is installed from the Epic Games Launcher instead of from source.

You can check out my modifications for this from the current Carla master at:
edufford@78e9e19

My environment (for reference):

• macOS High Sierra 10.13.5
• Xcode 9.4.1
• Clang 3.9.1 (installed by homebrew llvm-3.9)
• UE Editor 4.18.3 (installed from Mac Epic Games Launcher)

[edufford]

Also, for installing the Mac build dependencies, I used:

• LLVM/Clang 3.9
  brew tap llvm-hs/homebrew-llvm
brew install llvm-3.9

• tac command by symbolic link
  brew install coreutils
ln -s /usr/local/bin/gtac /usr/local/bin/tac

• Others
  brew install cmake autoconf automake ninja libtool wget

• Python 3.6 (installed by Conda) Requests package
  pip install requests

When building the plugins in Unreal Engine, I also had to downgrade errors for unused lambda capture following https://answers.unrealengine.com/questions/779733/xcode-build-errors-lambda-capturenot-used.html:

1. Modify Engine/Source/Programs/UnrealBuildTool/Platform/MacToolChain.cs to add:

   Result += " -Wno-unused-lambda-capture";
   

   after the existing line:

   Result += " -Wno-unused-value";
   

2. Run xbuild UnrealBuildTool.csproj (deprecated) or msbuild UnrealBuildTool.csproj from the Engine/Source/Programs/UnrealBuildTool/ directory

[raskolnikov-reborn]

I get the "UE4Editor-Carla.dylib missing" along with one more. Rebuilding fails and it says try from source manually. Any help with this?

[edufford]

The missing dylib messages is normal, just needs the UE rebuild to work. Are you using the latest Carla 0.9.0? It was updated for Unreal Engine 4.19 instead of 4.18 so there may be new UE rebuild issues. I haven’t had a chance to try it with UE 4.19 yet.

[analog-cbarber]

I got a Mac build working based on the current master branch (i.e. 0.9.0) using
Xcode 9.2 and the standard UE 4.19 download, so there is no need to build libc++
or the Unreal Engine.

Some changes were required.

I have pushed what I have so far on the mac-build-0.9 branch of our fork.

See https://github.com/analog-garage/carla/blob/mac-build-0.9/Docs/how_to_build_on_mac.md

[edufford]

@analog-cbarber Nice work!

I was able to use your fork's mac-build-0.9 branch to build Carla 0.9 with Xcode 9.4.1 as well, after modifying the Xcode version check in the Util/BuildTools/Setup.command file.

Copying the GenerateProjectFiles.sh to the UE root folder didn't work for me though, so instead I was able to modify the Util/BuildTools/BuildCarlaUE4.command file to call the built in Mac GenerateProjectFiles.sh that comes with the UE engine install package in place:

Util/BuildTools/BuildCarlaUE4.command

log "Generate Unreal project files."

#if [[ ! -f ${UE4_ROOT}/GenerateProjectFiles.sh ]]; then
#  fatal_error "No GenerateProjectFiles.sh in ${UE4_ROOT}. You can copy this from UnrealEngine source tree."
#fi

#${UE4_ROOT}/GenerateProjectFiles.sh -project="${PWD}/CarlaUE4.uproject" -game -engine -makefiles

# HACK! This generates wrong targets on the Mac! Just replace Linux with Mac everywhere:
#sed -i .original -e "s/Linux/Mac/g" Makefile

# GenerateProjectFiles.sh requires to change directory to location of UE engine Mac batch files
pushd "${UE4_ROOT}/Engine/Build/BatchFiles/Mac/" >/dev/null
./GenerateProjectFiles.sh -project="${CARLAUE4_ROOT_FOLDER}/CarlaUE4.uproject" -game -engine -makefiles
popd >/dev/null

The Xcode project workspace Unreal/CarlaUE4/CarlaUE4.xcworkspace that this generates worked fine to Build & Run the project and launch the UE Editor. It would be great if your how_to_build_on_mac.md doc also included some info about using this file to build/run the project too.

For the command line UE project build though, instead of using make with the Linux->Mac swapped UE Makefile, I had to modify the Util/BuildTools/BuildCarlaUE4.command file to use UE's Mac Build.sh script directly and add -NoUBTMakefiles to prevent an error about invalid makefile contents from the UE Build Tool:

Util/BuildTools/BuildCarlaUE4.command

log "Build CarlaUE4 project."
#make CarlaUE4Editor

# Build.sh requires to change directory to location of UE engine root
pushd "${UE4_ROOT}" >/dev/null
./Engine/Build/BatchFiles/Mac/Build.sh UE4Editor Mac Development -NoUBTMakefiles
popd >/dev/null

For Mac, Xcode is probably the way to go anyways as long as the AppleClang version is still compatible. Thanks again for posting your work!

[analog-cbarber]

Did you copy GenerateProjectFiles.sh from the root of the Unreal Engine source tree? I think that should work. I would have checked in a copy of the file I used if not for the conflicting copyright. On Aug 20, 2018 3:29 PM, Effendi Dufford <notifications@github.com> wrote: @analog-cbarber<https://github.com/analog-cbarber> Nice work! I was able to use your fork's mac-build-0.9 branch to build Carla 0.9 with Xcode 9.4.1 as well, after modifying the Xcode version check in the Util/BuildTools/Setup.command file. Copying the GenerateProjectFiles.sh to the UE root folder didn't work for me though, so instead I was able to modify the Util/BuildTools/BuildCarlaUE4.command file to call the built in Mac GenerateProjectFiles.sh that comes with the UE engine install package in place: Util/BuildTools/BuildCarlaUE4.command log "Generate Unreal project files." #if [[ ! -f ${UE4_ROOT}/GenerateProjectFiles.sh ]]; then # fatal_error "No GenerateProjectFiles.sh in ${UE4_ROOT}. You can copy this from UnrealEngine source tree." #fi #${UE4_ROOT}/GenerateProjectFiles.sh -project="${PWD}/CarlaUE4.uproject" -game -engine -makefiles # HACK! This generates wrong targets on the Mac! Just replace Linux with Mac everywhere: #sed -i .original -e "s/Linux/Mac/g" Makefile # GenerateProjectFiles.sh requires to change directory to location of UE engine Mac batch files pushd "${UE4_ROOT}/Engine/Build/BatchFiles/Mac/" >/dev/null ./GenerateProjectFiles.sh -project="${CARLAUE4_ROOT_FOLDER}/CarlaUE4.uproject" -game -engine -makefiles popd >/dev/null The Xcode project workspace Unreal/CarlaUE4/CarlaUE4.xcworkspace that this generates worked fine to Build & Run the project and launch the UE Editor. It would be great if your how_to_build_on_mac.md doc also included some info about using this file to build/run the project too. For the command line UE project build though, instead of using make with the Linux->Mac swapped UE Makefile, I had to modify the Util/BuildTools/BuildCarlaUE4.command file to use UE's Mac Build.sh script directly and add -NoUBTMakefiles to prevent an error about invalid makefile contents from the UE Build Tool: Util/BuildTools/BuildCarlaUE4.command log "Build CarlaUE4 project." #make CarlaUE4Editor # Build.sh requires to change directory to location of UE engine root pushd "${UE4_ROOT}" >/dev/null ./Engine/Build/BatchFiles/Mac/Build.sh UE4Editor Mac Development -NoUBTMakefiles popd >/dev/null For Mac, Xcode is probably the way to go anyways as long as the AppleClang version is still compatible. Thanks again for posting your work! — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub<#150 (comment)>, or mute the thread<https://github.com/notifications/unsubscribe-auth/AHEKc4MWwqyif8QWydT_yWu4eM4nD6cjks5uSw3-gaJpZM4Rj_40>.

[analog-cbarber]

Yes, it should be possible to build everything using Xcode and plan to add am option for that if not make it the default on the Mac. On Aug 20, 2018 3:29 PM, Effendi Dufford <notifications@github.com> wrote: @analog-cbarber<https://github.com/analog-cbarber> Nice work! I was able to use your fork's mac-build-0.9 branch to build Carla 0.9 with Xcode 9.4.1 as well, after modifying the Xcode version check in the Util/BuildTools/Setup.command file. Copying the GenerateProjectFiles.sh to the UE root folder didn't work for me though, so instead I was able to modify the Util/BuildTools/BuildCarlaUE4.command file to call the built in Mac GenerateProjectFiles.sh that comes with the UE engine install package in place: Util/BuildTools/BuildCarlaUE4.command log "Generate Unreal project files." #if [[ ! -f ${UE4_ROOT}/GenerateProjectFiles.sh ]]; then # fatal_error "No GenerateProjectFiles.sh in ${UE4_ROOT}. You can copy this from UnrealEngine source tree." #fi #${UE4_ROOT}/GenerateProjectFiles.sh -project="${PWD}/CarlaUE4.uproject" -game -engine -makefiles # HACK! This generates wrong targets on the Mac! Just replace Linux with Mac everywhere: #sed -i .original -e "s/Linux/Mac/g" Makefile # GenerateProjectFiles.sh requires to change directory to location of UE engine Mac batch files pushd "${UE4_ROOT}/Engine/Build/BatchFiles/Mac/" >/dev/null ./GenerateProjectFiles.sh -project="${CARLAUE4_ROOT_FOLDER}/CarlaUE4.uproject" -game -engine -makefiles popd >/dev/null The Xcode project workspace Unreal/CarlaUE4/CarlaUE4.xcworkspace that this generates worked fine to Build & Run the project and launch the UE Editor. It would be great if your how_to_build_on_mac.md doc also included some info about using this file to build/run the project too. For the command line UE project build though, instead of using make with the Linux->Mac swapped UE Makefile, I had to modify the Util/BuildTools/BuildCarlaUE4.command file to use UE's Mac Build.sh script directly and add -NoUBTMakefiles to prevent an error about invalid makefile contents from the UE Build Tool: Util/BuildTools/BuildCarlaUE4.command log "Build CarlaUE4 project." #make CarlaUE4Editor # Build.sh requires to change directory to location of UE engine root pushd "${UE4_ROOT}" >/dev/null ./Engine/Build/BatchFiles/Mac/Build.sh UE4Editor Mac Development -NoUBTMakefiles popd >/dev/null For Mac, Xcode is probably the way to go anyways as long as the AppleClang version is still compatible. Thanks again for posting your work! — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub<#150 (comment)>, or mute the thread<https://github.com/notifications/unsubscribe-auth/AHEKc4MWwqyif8QWydT_yWu4eM4nD6cjks5uSw3-gaJpZM4Rj_40>.

[edufford]

Ah, I was looking for the GenerateProjectFiles.sh file in the /UE_4.19/Engine/Source/ folder since I installed it from the Epic Games Launcher instead of from the full source package, so I could only find the file in the /UE_4.19/Engine/Build/BatchFiles/Mac/ folder and copying that one over didn't work.

It did work when I downloaded the GenerateProjectFiles.sh file from Epic's source repo as you linked, but it looks like this script is basically just running:

cd Engine/Build/BatchFiles/Mac
sh ./GenerateLLDBInit.sh
sh ./GenerateProjectFiles.sh $@

So it seems that if the BuildCarlaUE4.command file just manually ran these scripts directly, similar to my modification, then there would be no need for copying this file over from the main engine source.

[WolfgangFahl]

make package fails with:

bash: /Users/Shared/EpicGames/UE_4.21/Engine/Build/BatchFiles/Linux/RunMono.sh: No such file or directory

while there is RunMono.sh is in Mac directory. Why is this not selected?

[analog-cbarber]

You shouldn't even bother with make package until you can launch the game in the editor and run it in standalone mode.

Since I was unable to do that (because my Mac froze), I probably never tried 'make package' and would not have noticed if it was not correct.

[rsatyan]

Having an issue building PythonAPI.3 - Have followed the instructions in how to build for mac.

In file included from /Users/savatara/Downloads/carla-mac-build-0.9/LibCarla/source/carla/client/detail/Episode.cpp:7:
In file included from /Users/savatara/Downloads/carla-mac-build-0.9/LibCarla/cmake/../source/carla/client/detail/Episode.h:9:
In file included from /Users/savatara/Downloads/carla-mac-build-0.9/LibCarla/cmake/../source/carla/AtomicSharedPtr.h:9:
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/memory:4448:28: error:
cannot cast 'element_type' (aka 'carla::client::detail::EpisodeState') to its private base class 'const
enable_shared_from_thiscarla::client::detail::EpisodeState'
__r.__enable_weak_this(__r._ptr, __r._ptr);
^
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/memory:4810:29: note: in
instantiation of function template specialization
'std::__1::shared_ptrcarla::client::detail::EpisodeState::make_shared<const unsigned long long &>' requested here
return shared_ptr<_Tp>::make_shared(_VSTD::forward<_Args>(__args)...);
^
/Users/savatara/Downloads/carla-mac-build-0.9/LibCarla/source/carla/client/detail/Episode.cpp:29:19: note: in instantiation of
function template specialization 'std::__1::make_shared<carla::client::detail::EpisodeState, const unsigned long long &>'
requested here
_state(std::make_shared(info.id)),
^
In file included from /Users/savatara/Downloads/carla-mac-build-0.9/LibCarla/source/carla/client/detail/Episode.cpp:7:
In file included from /Users/savatara/Downloads/carla-mac-build-0.9/LibCarla/cmake/../source/carla/client/detail/Episode.h:15:
/Users/savatara/Downloads/carla-mac-build-0.9/LibCarla/cmake/../source/carla/client/detail/EpisodeState.h:25:7: note:
implicitly declared private here
: std::enable_shared_from_this,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /Users/savatara/Downloads/carla-mac-build-0.9/LibCarla/source/carla/client/detail/Episode.cpp:7:
In file included from /Users/savatara/Downloads/carla-mac-build-0.9/LibCarla/cmake/../source/carla/client/detail/Episode.h:9:
In file included from /Users/savatara/Downloads/carla-mac-build-0.9/LibCarla/cmake/../source/carla/AtomicSharedPtr.h:9:
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/memory:4448:28: error:
cannot cast 'element_type' (aka 'const carla::client::detail::EpisodeState') to its private base class 'const
enable_shared_from_thiscarla::client::detail::EpisodeState'
__r.__enable_weak_this(__r._ptr, __r._ptr);
^
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/memory:4810:29: note: in
instantiation of function template specialization 'std::__1::shared_ptr::make_shared<const carla::sensor::data::RawEpisodeState &>' requested here
return shared_ptr<_Tp>::make_shared(_VSTD::forward<_Args>(__args)...);
^
/Users/savatara/Downloads/carla-mac-build-0.9/LibCarla/source/carla/client/detail/Episode.cpp:47:26: note: in instantiation of
function template specialization 'std::__1::make_shared<const carla::client::detail::EpisodeState, const
carla::sensor::data::RawEpisodeState &>' requested here
auto next = std::make_shared(CastData(*data));
^
In file included from /Users/savatara/Downloads/carla-mac-build-0.9/LibCarla/source/carla/client/detail/Episode.cpp:7:
In file included from /Users/savatara/Downloads/carla-mac-build-0.9/LibCarla/cmake/../source/carla/client/detail/Episode.h:15:
/Users/savatara/Downloads/carla-mac-build-0.9/LibCarla/cmake/../source/carla/client/detail/EpisodeState.h:25:7: note:
implicitly declared private here
: std::enable_shared_from_this,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
2 errors generated.

[markcoletti]

Also, for installing the Mac build dependencies, I used:
[...]

• tac command by symbolic link
  brew install coreutils
ln -s /usr/local/bin/gtac /usr/local/bin/tac
  [...]

As a small aside, tac came over naturally when I did brew install coreutils, so I didn't need to do the symlink. Thank you for the helpful info, though!

[raeed17]

If someone got CARLA to work on Mac using Xcode could they maybe put in on GitHub for people to use? I feel like it would help a lot of people! Unless this is already available somewhere?

[germanros1987]

We could use some help with this...

[mainakchain]

Why am I getting this error when I run ./CarlaUE4.sh in terminal. I have a Mac system.

readlink: illegal option -- f usage: readlink [-n] [file ...] ./CarlaUE4.sh: line 5: ./CarlaUE4/Binaries/Linux/CarlaUE4: cannot execute binary file

[Hither1]

Hi all,

I'm wondering is it possible to play the CARLA .log file on a Macbook Pro without GPU? Thanks!

[DrickCode]

Hi analog-cbarber,

First, thanks for your work.
Now I'm trying to build on x86 Big Sur(11.4)
But there are map error in run time
All setup libraries are built in 11.4, but when link to UE4Editor-Carla.dylib.
It shows

Plugins/Carla/CarlaDependencies/lib/librpc.a(this_server.o)) was built for newer macOS version (11.4) than being linked (10.12)

How do I change the config when build UE4Editor-Carla?

And run time shows map error

SEGV_MAPERR at 0x40

Unknown() Address = 0x16920d919 (filename not found) [in UE4Editor-Carla.dylib]
Unknown() Address = 0x10641220c (filename not found) [in UE4Editor-CoreUObject.dylib]
Unknown() Address = 0x10673fda7 (filename not found) [in UE4Editor-CoreUObject.dylib]
Unknown() Address = 0x106490917 (filename not found) [in UE4Editor-CoreUObject.dylib]
Unknown() Address = 0x105594d15 (filename not found) [in UE4Editor-Core.dylib]
Unknown() Address = 0x1058958af (filename not found) [in UE4Editor-Core.dylib]
Unknown() Address = 0x10c3e4ac2 (filename not found) [in UE4Editor-Projects.dylib]
Unknown() Address = 0x10c3fa4ad (filename not found) [in UE4Editor-Projects.dylib]
Unknown() Address = 0x10c3f9fab (filename not found) [in UE4Editor-Projects.dylib]
Unknown() Address = 0x1054473c1 (filename not found) [in UE4Editor]
Unknown() Address = 0x10542a885 (filename not found) [in UE4Editor]
Unknown() Address = 0x10543f15f (filename not found) [in UE4Editor]
Unknown() Address = 0x10544c880 (filename not found) [in UE4Editor]
Unknown() Address = 0x1056f4e67 (filename not found) [in UE4Editor-Core.dylib]
Unknown() Address = 0x7fff21332477 (filename not found) [in Foundation]
Unknown() Address = 0x7fff204b48fc (filename not found) [in libsystem_pthread.dylib]
Unknown() Address = 0x7fff204b0443 (filename not found) [in libsystem_pthread.dylib]

I merged 0.9.4 into my fork and built.

Haven't tested other than to drive the manual control a bit connected to the game running in PIE mode. I have no reason to believe that the freeze problem has gone away. (Speaking of which, I have tried running with a variety of different settings but have not found any that work. There are some GPU logs, but aren't especially informative to me.)

I should say that while it is very useful to be able to do development on my carla related code on my Macbook pro, it's GPU isn't powerful enough to make good use of CARLA. Unless someone figures out how to make use of external GPUs, I don't think that Mac will ever be a recommended platform for working with CARLA. If the network overhead is not too bad, it might be more generally useful to be able to remotely drive a CARLA simulation from a Mac, in which case it would make sense to support the client API.

[analog-cbarber]

Sorry, but I have not been working on CARLA or Unreal engine since when I wrote that, so I don't have any useful insight. You might have to spend some time understanding the cmake files.

It is also possible that if you are still trying to build an old version of CARLA on an old version of Unreal that there are things that may not work on the later Mac versions. I was able to just install the old Unreal engine directly and use that to save time, but it is possible you may have to build it from scratch.

[SevillaFe]

Hi,

are there any kind of Instructions to build CARLA on MAC? I have reading the thread but it's confusing. Do you have instructions or steeps to get CARLA on Mac?

Thank you for your previous work in this thread

[bisalgt]

Hi @SevillaFe do you have any progress or update on using CARLA on mac ? If so kindly share. Thank you.

[psr-ai]

Can someone share their running build for CARLA for Mac please? I have an M2 chip, but should be fine with any which is working on apple silicon.

[bisalgt]

Hi @raiprabh , I was making it work with mac m1 but was not working properly for me. So at the end, I am now using a lenovo laptop with nvidia gpu for the task. It is not impossible but its really too much energy to waste configuring on mac i think.

[manishkc104]

Is their any solution for it ? Is their any proper documentation to install and run carla in mac os

[Apoorvgarg-creator]

Is their any solution for it ? Is their any proper documentation to install and run carla in mac os

I think this issue itself is the only "official" documentation so far now.

[analog-cbarber]

Given that it is not currently supported and would be non-trivial to get working (it took at least a full week for me 5 years ago), you have to first ask why do you need this to run on a Mac? Is it just because you don't currently own a suitable Windows or Linux GPU machine or there really is some specific reason you need Mac specifically. If the former, I would suggest that you should just bite the bullet and buy a suitable machine and save yourself the time and aggravation.

[silakuzu]

Can someone share their running build for CARLA for Mac please? I have an M2 chip, but should be fine with any which is working on apple silicon.

Hi, could you make it work?

[analog-cbarber]

I don't know that anyone actually has a running Mac build currently.

[silakuzu]

I don't know that anyone actually has a running Mac build currently.

I have been struggling a lot with Mac and could not find a solution either...

[kwcnldnsldskcls]

Hello! Someone tried to run the ue5.5 branch?
I was trying but the Plugins won’t work. I tried to build them from source but some .def files are missing. The branch says that the 5.5 works. Maybe we can get the Engine running first and later make the other functions work? Thanks and I hope we get this running