常见错误解决
一 用SVN遇到的问题
1.Undefined symbols for architecture i386:
"_OBJC_CLASS_$_LJLAddress", referenced from: //LJLAddress是个类
objc-class-ref in LJLImmediatelyController.o //LJLImmediatelyController是个类
ld: symbol(s) not found for architecture i386
clang: error: linker command failed with exit code 1 (use -v to see invocation)
解决方法：svn更新时方法有更新下来，但没加入项目文件，只要打开文件夹，把LJLAddress和LJLImmediatelyController类直接拖进项目就可以了