Question

ios 这个编译错误 怎么解决

ld: warning: directory not found for option '-L/Users/adi/Library/Developer/Xcode/DerivedData/baisi-dwhypqxqhufnzraqalkllhrsnezn/Build/Products/Debug-iphonesimulator/AFNetworking'ld: warning: directory not found for option '-L/Users/adi/Library/Developer/Xcode/DerivedData/baisi-dwhypqxqhufnzraqalkllhrsnezn/Build/Products/Debug-iphonesimulator/MJExtension'ld: warning: directory not found for option '-L/Users/adi/Library/Developer/Xcode/DerivedData/baisi-dwhypqxqhufnzraqalkllhrsnezn/Build/Products/Debug-iphonesimulator/MJRefresh'ld: warning: directory not found for option '-L/Users/adi/Library/Developer/Xcode/DerivedData/baisi-dwhypqxqhufnzraqalkllhrsnezn/Build/Products/Debug-iphonesimulator/SDWebImage'ld: warning: directory not found for option '-L/Users/adi/Library/Developer/Xcode/DerivedData/baisi-dwhypqxqhufnzraqalkllhrsnezn/Build/Products/Debug-iphonesimulator/SVProgressHUD'ld: library not found for -lAFNetworkingclang: error: linker command failed with exit code 1 (use -v to see invocation)

Answer 1

NSSortDescriptor *sortDescriptor;
sortDescriptor = [[[NSSortDescriptor alloc]initWithKey:@"birthDate"
ascending:YES] autorelease];
NSArray *sortDescriptors = [NSArray arrayWithObject:sortDescriptor];
NSArray *sortedArray;
sortedArray = [drinkDetails sortedArrayUsingDescriptors:sortDescriptors];