[MKNetworkEngine saveCache] in MKNetworkEngine.o

[黄荣星]

(null): "_ELog", referenced from:

(null): -[MKNetworkEngine saveCache] in MKNetworkEngine.o

(null): ___40-[MKNetworkEngine saveCacheData:forKey:]_block_invoke in MKNetworkEngine.o

(null): Symbol(s) not found for architecture i386

(null): Linker command failed with exit code 1 (use -v to see invocation)