Confusing build error message provided when semi-colon is not added after a forward declaration in an Interface header file

If a forward declaration of a class is made in the header file for an Interface class, and no semi-colon is included at the end of the forward declaration line, the build will fail with a confusing error message. The error message says to check that UE4 prerequisites are installed, which has nothing to do with the actual error in this case.

REGRESSION:
No. The same behavior occurs in 4.20.3

1. Create a new Basic Code project.
2. Build the project in Visual Studio.
3. Open the project in the Editor.
4. Add a new Unreal Interface class to the project.
5. In the header file for the new class, add a forward declaration of another class before the UINTERFACE() macro. Make sure no semi-colon is included at the end of the forward declaration.
   • eg: class AActor
6. Build the project in Visual Studio.

RESULT:
The build fails with the following error: UnrealBuildTool : error : UnrealHeaderTool failed with exit code 0xC0000005 - check that UE4 prerequisites are installed.

EXPECTED:
The build fails with an error indicating that an expected semi-colon is missing.