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錯誤的解決方法: io

原來是少框架的緣由: class

1,先找到報錯的這個類是哪一個框架的; command

2,在target-->build phases-->link binary with libraries中點擊下面的+,在列出的衆多框架中,找到本身想要的哪一個,而後添加進來就哦了! 方法

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