Apple Mach-O Linker errors and I don't know what to do
This error can occur when a framework is added to a project more than once.
- You can fix this by removing the duplicate. To find it, select the framework in the Xcode project navigator and choose Show in Finder. Then clean and build your project.
This can also be caused if you're missing framework header files or a reference to them.
- In that case, you should trying removing the SDK or framework and adding it again.