Clang++ Linking Error When Compiling MAUI App for Mac

[jfversluis]

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Issue moved from dotnet/maui#27320

• Please respond to @LuisGuerra89.

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From @LuisGuerra89 on Thursday, January 23, 2025 8:25:19 PM

When trying to compile my .NET MAUI app for Mac, I get the following error:

1>Xamarin.Shared.Sdk.targets(1641,3): Error  : clang++ exited with code 1:
Undefined symbols for architecture x86_64:
  "_main", referenced from:
     implicit entry/start for main executable
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Environment
.NET SDK Version: 8.0.405

Installed Workloads:

Installed Workload Id      Installation Source
----------------------------------------------
ios                        SDK 8.0.400
maui                       SDK 8.0.400
android                    SDK 8.0.400

Xcode Version: 15.2
iOS SDK Version: 17

Issue:
From my understanding, this issue seems related to the workloads pointing to iOS SDK 18, which is not an option for me to upgrade to at the moment.

I attempted to force a specific workload version by following the solution suggested in [this issue], but with .NET 8.0.405, I still encountered the same error.

When trying to install a forced version dotnet workload install maui android ios --version 8.0.402.0 with .NET 8.0.402 instead, I received the following warning during installation:

Warning: Workload garbage collection failed with error: Workload version 8.0.402-baseline.24467.1 was not found.
Request

Has anyone encountered this issue before? Any suggestions or workarounds to force the correct workload version or fix the linker issue would be greatly appreciated. @jfversluis

Thanks in advance! 🙏