Can't Open C++ Project On MacOS, Which Works Just Fine On Windows.

Development Programming & Scripting
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1

Hi, I’m making 2 games and are trying to pack them on macOS. But I can’t even open them.

If I open the uproject directly, it says “need to rebuild manually”, which is normal, just like on windows I just generate the sln file.
But there is no such option on mac.

And BTW, if I create a new C++ project on my mac, it opens normally.

Listing my environment first:

  • UE Version: 5.3.2 (on both machine)
  • Windows 11
  • MacOS 15.1.1
  • Xcode 16.2
  • Command Line Tools: Xcode 16.2 16C5032a

When I entered the project folder, I type this commands in terminal:
dotnet "/Users/Shared/Epic Games/UE_5.3/Engine/Binaries/DotNET/UnrealBuildTool/UnrealBuildTool.dll" -project="/Users/ddonlien/UnrealEngine/GGJ/GgjProj/GgjProj.uproject" Development Mac -Target=GgjProj -progress
And I got
Platform Mac is not a valid platform to build. Check that the SDK is installed properly.

I must say I just don’t know why. Anyone can help?

2

Hi there @Taobe

This is an older thread. But, I saw a user who was having this same issue. Take a peek here and see if any of the information/solutions help answer your scenario. Platform Mac is not a valid platform to build. Compile failed I hope it helps!