Upload request for iOS mobile app

Thank you very much.  Now, the first two are solved, but #3 remains with this new message:

No visible @interface for 'DBFILESUserAuthRoutes' declares the selector 'uploadData:mode:autorename:clientModified:mute:propertyGroups:inputData:'

I'm not sure what the Dependencies are forDBFILESUserAuthRoutes?

     //         Code Below......................................................

Controller.m code:

      NSData *fileData = [@"file data example" dataUsingEncoding:NSUTF8StringEncoding allowLossyConversion:NO];    

    DBFILESWriteMode *mode = [[DBFILESWriteMode alloc] initWithOverwrite];

    [[[client.filesRoutes uploadData:@"/test/path/in/Dropbox/account/yourPDF.pdf"

                                mode:mode

                          autorename:@(YES)

                      clientModified:nil

                                mute:@(NO)

                      propertyGroups:nil

                           inputData:receivePdfData]

      setResponseBlock:^(DBFILESFILEMetadata *result, DBFILESUploadError *routeError, BDRequestError *networkError) {

          if (result) {

              NSLog(@"%@\n", result);

          } else {

              NSLog(@"%@\n%@\n", routeError, networkError);

          }

      }] setProgressBlock:^(int64_t bytesUploaded, int64_t totalBytesUploaded, int64_t totalBytesExpectedUploaded) {

          NSLog(@"\n%lld\n%lld\n%lld\n", bytesUploaded, totalBytesUploaded, totalBytesExpectedUploaded);

      }];

AppDelegate.m Code:

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions 

     [DBClientsManager setupWithAppKey:@"<APP_KEY_REDACTED>"];

       DBUserClient *client = [[DBUserClient alloc] initWithAccessToken:@"<ACCESS_TOKEN_REDACTED>"];

      return YES;

}

- (BOOL)application:(UIApplication *)app openURL:(NSURL *)url options:(NSDictionary<UIApplicationOpenURLOptionsKey,id> *)options {

    DBOAuthResult *authResult = [DBClientsManager handleRedirectURL:url];

    if (authResult != nil) {

        if ([authResult isSuccess]) {

            NSLog(@"Success! User is logged into dropbox.");

        } else if ([authResult isCancel]) {

            NSLog(@"Authorization flow was manually canceled by user!");

        } else if ([authResult isError]) {

            NSLog(@"Error: %@", authResult);

              }

    }

    return NO;

}