Undefined symbols for architecture armv7: "_O...


Undefined symbols for architecture armv7: 框架

  "_OBJC_CLASS_$_MFMessageComposeViewController", referenced from: ui

      objc-class-ref in SignUpViewController.o code

ld: symbol(s) not found for architecture armv7 get

clang: error: linker command failed with exit code 1 (use -v to see invocation) it

J错误的解决方法: io

原来是少框架的缘由: class

1,先找到报错的这个类是哪一个框架的; command

2,在target-->build phases-->link binary with libraries中点击下面的+,在列出的众多框架中,找到本身想要的哪一个,而后添加进来就哦了! 方法

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