點擊頂部工程名 --> 左側Target --> BuildSettings -->
Apple LLVM 7.1 -Language-Objective C 下面的 Weak References in Manual Retain Release 設置爲YES.
然後common+B編譯運行一下就可以了
點擊頂部工程名 --> 左側Target --> BuildSettings -->
Apple LLVM 7.1 -Language-Objective C 下面的 Weak References in Manual Retain Release 設置爲YES.
然後common+B編譯運行一下就可以了