Hello, I’m on a snapdragon x elite platform and I cannot create c++ based projects. Initially i solved a missing blake_dotnet.dll issue by changing the dotnet_root environment variable. Then I’ve been unable to build a new project with visual studio 2026 and 2022 with the following log error
CompilationResultException: OtherCompilationError
at UnrealBuildTool.ActionGraph.ExecuteActionsAsync(BuildConfiguration BuildConfiguration, List`1 ActionsToExecute, List`1 TargetDescriptors, ILogger Logger, IActionArtifactCache actionArtifactCache)
at UnrealBuildTool.BuildMode.BuildAsync(TargetMakefile[] Makefiles, List`1 TargetDescriptors, BuildConfiguration BuildConfiguration, BuildOptions Options, FileReference WriteOutdatedActionsFile, ILogger Logger, String ActionTypeFilter)
at UnrealBuildTool.BuildMode.BuildAsync(List`1 TargetDescriptors, BuildConfiguration BuildConfiguration, ISourceFileWorkingSet WorkingSet, BuildOptions Options, FileReference WriteOutdatedActionsFile, ILogger Logger, Boolean bSkipPreBuildTargets, String ActionTypeFilter)
at UnrealBuildTool.BuildMode.ExecuteAsync(CommandLineArguments Arguments, ILogger Logger)
at UnrealBuildTool.UnrealBuildTool.Main(String[] ArgumentsArray)
WriteFileIfChanged() wrote 63 changed files of 94 requested writes.
Checking around the community, this could be a tricky setup, as your Snapdragon should be able to handle blueprint projects, but C++ projects tend to encounter conflicts with it.
The most critical point here is to ensure that your Visual Studio install is using the correct version, and that all its elements are added with the right version, specially the x64 MSVC toolchain. I would stick to VS 2022 only, as that is the only version with full support from Epic, and 2026 is too new, it will give you unstable results.
There’s a UE doc that covers the full setup, here:
As well as a video guide, here:
If the issue persists after all these changes, try checking your compiler version and status manually, by editing BuildConfiguration.xml, as seen in the thread below:
