Apple Mach-O de l'éditeur de liens d'Erreur dans xcode 6

J'ai été l'ajout de nouveaux UITableView délégué de la méthode dans mon code et tout à coup j'ai eu une erreur lors de la compilation de ce genre .Mon Xcode version est la version 6.1 (6A1046a)

Ld /Users/apple/Library/Developer/Xcode/DerivedData/Med-emhoezxvdfnzwvfvktteeafyndtq/Build/Products/Debug-iphoneos/MedTests.xctest/MedTests normal arm64
cd /Users/apple/Documents/med
export IPHONEOS_DEPLOYMENT_TARGET=8.1
export PATH="/Applications/Xcode 2.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin:/Applications/Xcode 2.app/Contents/Developer/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin"
/Applications/Xcode\ 2.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -arch arm64 -bundle -isysroot /Applications/Xcode\ 2.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS8.1.sdk -L/Users/apple/Library/Developer/Xcode/DerivedData/Med-emhoezxvdfnzwvfvktteeafyndtq/Build/Products/Debug-iphoneos -F/Users/apple/Library/Developer/Xcode/DerivedData/Med-emhoezxvdfnzwvfvktteeafyndtq/Build/Products/Debug-iphoneos -F/Applications/Xcode\ 2.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS8.1.sdk/Developer/Library/Frameworks -F/Applications/Xcode\ 2.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/Frameworks -F/Applications/Xcode\ 2.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS8.1.sdk/Developer/Library/Frameworks -filelist /Users/apple/Library/Developer/Xcode/DerivedData/Med-emhoezxvdfnzwvfvktteeafyndtq/Build/Intermediates/Med.build/Debug-iphoneos/MedTests.build/Objects-normal/arm64/MedTests.LinkFileList -Xlinker -rpath -Xlinker @executable_path/Frameworks -Xlinker -rpath -Xlinker @loader_path/Frameworks -dead_strip -bundle_loader /Users/apple/Library/Developer/Xcode/DerivedData/Med-emhoezxvdfnzwvfvktteeafyndtq/Build/Products/Debug-iphoneos/Med.app/Med -framework XCTest -fobjc-arc -fobjc-link-runtime -miphoneos-version-min=8.1 -Xlinker -dependency_info -Xlinker /Users/apple/Library/Developer/Xcode/DerivedData/Med-emhoezxvdfnzwvfvktteeafyndtq/Build/Intermediates/Med.build/Debug-iphoneos/MedTests.build/Objects-normal/arm64/MedTests_dependency_info.dat -o /Users/apple/Library/Developer/Xcode/DerivedData/Med-emhoezxvdfnzwvfvktteeafyndtq/Build/Products/Debug-iphoneos/MedTests.xctest/MedTests
ld: file not found: /Users/apple/Library/Developer/Xcode/DerivedData/Med-emhoezxvdfnzwvfvktteeafyndtq/Build/Products/Debug-iphoneos/Med.app/Med
clang: error: linker command failed with exit code 1 (use -v to see invocation)

J'ai essayé de mon versions de sauvegarde trop, mais aucun d'entre eux travaillent maintenant,s'il vous plaît aider moi

OriginalL'auteur Naveen Kumar | 2014-12-01