Undefined symbols for architecture armv7錯誤解決方法

Undefined symbols for architecture armv7:

  "_OBJC_CLASS_$_BriefMainModel", referenced from:

      objc-class-ref in BriefMainViewController.o

  "_OBJC_CLASS_$_DDXMLDocument", referenced from:

      objc-class-ref in BriefDetailViewController.o

      objc-class-ref in BriefMainViewController.o

  "_OBJC_CLASS_$_BriefDetailModel", referenced from:

      objc-class-ref in BriefDetailViewController.o

  "_OBJC_CLASS_$_MKNetworkEngine", referenced from:

      objc-class-ref in BriefDetailViewController.o

      objc-class-ref in BriefMainViewController.o

ld: symbol(s) not found for architecture armv7

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

 

Undefined symbols for architecture i386:

「_OBJC_CLASS_$_XXX」, referenced from:

objc-class-ref in XXX

ld: symbol(s) not found for architecture i386

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

 

若是真機調試就是 undefined symbols for architecture armv7錯誤！

發生這種錯誤一般是project.pbxproj這個文件引發的，尤爲在多人合做開發的時候，svn提交不規範可能致使project.pbxproj發生錯誤，致使文件的引用不在project.pbxproj文件中。

xcode項目import文件會根據project.pbxproj來查找，查找不到文件的引用則會有上述的錯誤。

 

解決方法點擊工程，在主界面中點擊Build Phases，根據提示信息「XXX」來判斷缺乏什麼文件，通常若是缺乏自定義的文件,Complie Sources下沒有XXX文件，那麼就在Complie Sources中加入該文件。若是缺乏類庫，則在Link Binary With Libraries中加入該類庫。