Strange compiler warning when precompiling prefix.pch

Question

When I want to start my app, I get this:

clang: error: invalid version number in '-mios-simulator-version-min= ' Command /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang failed with exit code 1

What's going on? When I google this error, I'm getting ZERO. This seems to be a very strange failure. Please apologize, that I can't give more information. It's because I'm completely clueless. Help!

Answer 1

OK, I've found the solution: .xcodeproj > General > Deployment Target ----> was empty!

This is not allowed.