ld: file not found: /Users/Rikin/Library/Developer/Xcode/DerivedData/FlashCard-gdxhvygkdmbudgfvxohgdqpcwbmb/Build/Products/Debug-iphonesimulator/FlashCard.app/FlashCard
clang: error: linker command failed with exit code 1 (use -v to see invocation)
有什么想法可以导致它吗? 我尝试了here给出的所有解决方案。但是,所提到的解决方案似乎都没有效果。