objective-c - After downloading someone else's source code, the problem ld: library not found for -lXXX appears

Question

ld: warning: directory not found for option '-L/Users/chenkuntao/Library/Developer/Xcode/DerivedData/XCFApp-cvwcrddriawvgjbdwjhslghjmekh/Build/Products/Debug-iphonesimulator/AFNetworking'
ld: warning: directory not found for option '-L/Users/chenkuntao/Library/Developer/Xcode/DerivedData/XCFApp-cvwcrddriawvgjbdwjhslghjmekh/Build/Products/Debug-iphonesimulator/MJExtension'
ld: warning: directory not found for option '-L/Users/chenkuntao/Library/Developer/Xcode/DerivedData/XCFApp-cvwcrddriawvgjbdwjhslghjmekh/Build/Products/Debug-iphonesimulator/MJRefresh'
ld: warning: directory not found for option '-L/Users/chenkuntao/Library/Developer/Xcode/DerivedData/XCFApp-cvwcrddriawvgjbdwjhslghjmekh/Build/Products/Debug-iphonesimulator/Masonry'
ld: warning: directory not found for option '-L/Users/chenkuntao/Library/Developer/Xcode/DerivedData/XCFApp-cvwcrddriawvgjbdwjhslghjmekh/Build/Products/Debug-iphonesimulator/SDWebImage'
ld: warning: directory not found for option '-L/Users/chenkuntao/Library/Developer/Xcode/DerivedData/XCFApp-cvwcrddriawvgjbdwjhslghjmekh/Build/Products/Debug-iphonesimulator/SVProgressHUD'
ld: warning: directory not found for option '-L/Users/chenkuntao/Library/Developer/Xcode/DerivedData/XCFApp-cvwcrddriawvgjbdwjhslghjmekh/Build/Products/Debug-iphonesimulator/pop'
ld: library not found for -lAFNetworking
clang: error: linker command failed with exit code 1 (use -v to see invocation)

How to solve the error

Answer 1

Is there a podfile file in the project? You need to install it

Answer 2

The third-party package is not installed. If there is a podfile, pod install it