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  报错内容显示如下: 
 
  ld: warning: ignoring file /Users/rowling/Library/Developer/Xcode/DerivedData/zhinengbangongpingtai-gylhkhpyjmmjkagiimejuaduiboa/Build/Products/Debug-iphonesimulator/libsqlcipher.a, file was built for archive which is not the architecture being linked (i386): /Users/rowling/Library/Developer/Xcode/DerivedData/zhinengbangongpingtai-gylhkhpyjmmjkagiimejuaduiboa/Build/Products/Debug-iphonesimulator/libsqlcipher.a 
 Undefined symbols for architecture i386:
 "_sqlite3_key", referenced from:
 -[FMDatabase setKeyWithData:] in FMDatabase.o
 "_sqlite3_rekey", referenced from:
 -[FMDatabase rekeyWithData:] in FMDatabase.o
 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1: 
 
  Change the  
 Buid setting ---> Architecture ---> Build Active Architecture only --->  
 Yes 来 
 
    
 
  解决方法2: 
 
  建立的XIB或者Storyboard中的控件连线没拉好,重新拉 
 
    
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