In case someone has troubles with building the latest SDK 8 beta for Unity, here are the steps to be taken:
After the Xcode project was exported, in the `Linked Frameworks and Libraries` section, please make sure that the `libiPhone-lib.a` library is placed after the `libUnityiOSBridgeLibrary.a` library.
I pushed `libiPhone-lib.a` below `libUnityiOSBridgeLibrary.a`.
Unfortunately, the error still occurs. This time the error is: "library not found for -lil2cpp"