xcode4 – XCode 4.3 – 构建错误“缺少必需的架构armv7”

ld: warning: ignoring file    /Applications/Xcode.app/Contents/Developer/Library/Frameworks/SenTesTingKit.framework/SenTesTingKit,missing required architecture armv7 in file
Undefined symbols for architecture armv7:
  "_STComposeString",referenced from:
      -[NSMutableURLrequest_ParametersTest verifyDefaultParametersForrequest:] in NSMutableURLrequest+ParametersTest.o
      -[NSMutableURLrequest_ParametersTest verifymodifiedParametersForrequest:] in NSMutableURLrequest+ParametersTest.o
      -[NSMutableURLrequest_ParametersTest verifyEmptyParametersForrequest:] in NSMutableURLrequest+ParametersTest.o
      -[NSString_URLEncodingTest testuRLEncodedString] in NSString+URLEncodingTest.o
      -[NSURL_BaseTest testuRLStringWithoutQuery] in NSURL+BaseTest.o
      -[OAHMAC_SHA1SignatureProviderTest testSignClearText] in OAHMAC_SHA1SignatureProviderTest.o
      -[OAMutableURLrequestTest testGenerateNonce] in OAMutableURLrequestTest.o
      ...
  "_OBJC_CLASS_$_SenTESTCase",referenced from:
      _OBJC_CLASS_$_NSMutableURLrequest_ParametersTest in NSMutableURLrequest+ParametersTest.o
      _OBJC_CLASS_$_NSString_URLEncodingTest in NSString+URLEncodingTest.o
      _OBJC_CLASS_$_NSURL_BaseTest in NSURL+BaseTest.o
      _OBJC_CLASS_$_OAHMAC_SHA1SignatureProviderTest in OAHMAC_SHA1SignatureProviderTest.o
      _OBJC_CLASS_$_OAMutableURLrequestTest in OAMutableURLrequestTest.o
      _OBJC_CLASS_$_OAPlaintextSignatureProviderTest in OAPlaintextSignatureProviderTest.o
      _OBJC_CLASS_$_OArequestParameterTest in OArequestParameterTest.o
      ...
  "_OBJC_MetaCLASS_$_SenTESTCase",referenced from:
      _OBJC_MetaCLASS_$_NSMutableURLrequest_ParametersTest in NSMutableURLrequest+ParametersTest.o
      _OBJC_MetaCLASS_$_NSString_URLEncodingTest in NSString+URLEncodingTest.o
      _OBJC_MetaCLASS_$_NSURL_BaseTest in NSURL+BaseTest.o
      _OBJC_MetaCLASS_$_OAHMAC_SHA1SignatureProviderTest in OAHMAC_SHA1SignatureProviderTest.o
      _OBJC_MetaCLASS_$_OAMutableURLrequestTest in OAMutableURLrequestTest.o
      _OBJC_MetaCLASS_$_OAPlaintextSignatureProviderTest in OAPlaintextSignatureProviderTest.o
      _OBJC_MetaCLASS_$_OArequestParameterTest in OArequestParameterTest.o
      ...
ld: symbol(s) not found for architecture armv7
clang: error: linker command Failed with exit code 1 (use -v to see invocation)