Ios Xcode中测试的链接器错误

我遵循的是使用xcode/appcode构建测试的说明。我顺利完成了最初的部分，并开始在我自己的项目中进行实验，但我不断遇到链接错误，无法找出原因

我得到的结果是

Ld /Users/prasanth/Library/Developer/Xcode/DerivedData/acidplus-ctbnayjfiyhfxkccqyopjsnfagos/Build/Products/Debug-iphonesimulator/acidplusTests.octest/acidplusTests normal i386
cd /Volumes/Defiant/Freeradical/freeradical_newacidbase/acidplus
setenv IPHONEOS_DEPLOYMENT_TARGET 6.1
setenv PATH "/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin:/Applications/Xcode.app/Contents/Developer/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin"
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -arch i386 -bundle -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator6.1.sdk -L/Users/prasanth/Library/Developer/Xcode/DerivedData/acidplus-ctbnayjfiyhfxkccqyopjsnfagos/Build/Products/Debug-iphonesimulator -LLibs/OCMock/iOS -LLibs/OCMock/iOS/OCMock -F/Users/prasanth/Library/Developer/Xcode/DerivedData/acidplus-ctbnayjfiyhfxkccqyopjsnfagos/Build/Products/Debug-iphonesimulator -F/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator6.1.sdk/Developer/Library/Frameworks -F/Applications/Xcode.app/Contents/Developer/Library/Frameworks -filelist /Users/prasanth/Library/Developer/Xcode/DerivedData/acidplus-ctbnayjfiyhfxkccqyopjsnfagos/Build/Intermediates/acidplus.build/Debug-iphonesimulator/acidplusTests.build/Objects-normal/i386/acidplusTests.LinkFileList -Xlinker -objc_abi_version -Xlinker 2 -force_load Libs/OCMock/iOS/libOCMock.a -fobjc-arc -fobjc-link-runtime -Xlinker -no_implicit_dylibs -mios-simulator-version-min=6.1 -framework CoreGraphics -framework SenTestingKit -framework UIKit -framework Foundation -lOCMock -o /Users/prasanth/Library/Developer/Xcode/DerivedData/acidplus-ctbnayjfiyhfxkccqyopjsnfagos/Build/Products/Debug-iphonesimulator/acidplusTests.octest/acidplusTests

Undefined symbols for architecture i386:
  "_OBJC_CLASS_$_BPG_testModelObject", referenced from:
      objc-class-ref in testModelTest.o
ld: symbol(s) not found for architecture i386
clang: error: linker command failed with exit code 1 (use -v to see invocation)

我试图查找丢失的源代码或链接的库，但什么也找不到。有人知道还有什么不对劲吗

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谢谢

您是否尝试过以下方法：

转到XCode，在项目->执行清理并再次构建解决方案下