iPhone中的Google Drive集成錯誤

Question

我創建了一個IPhone應用程序，並將google驅動器庫集成到了項目中，並且還在生成設置中進行了必需的設置。 I「m到處下面的錯誤在編譯時，請任何人都可以幫我這個

#import "ViewController.h" 
#import "GTMOAuth2ViewControllerTouch.h" 
#import "GTLService.h" 
#import "GTLQueryDrive.h" 
#import "GTLDrive.h" 
#import "GDUTILITY.h" 


@implementation ViewController 



@synthesize authButton; @synthesize addMoreButton; @synthesize 
btnRefresh; 


@synthesize isAuthorized; @synthesize driveService; @synthesize 
driveFiles; 






#define kKeychainItemName111 @"GDDEMOTESTERNONARC: Google Drive" 

#define kClientId111 @"16458548056-efdl07vmtam1pa159ln9024gc239oted.apps.googleusercontent.com" 

#define kClientSecret111 @"yJU-avQu3Y0dlu3tL9ooLDRo" 






- (void)didReceiveMemoryWarning { 
    [super didReceiveMemoryWarning]; 
    // Release any cached data, images, etc that aren't in use. } 

#pragma mark - View lifecycle 

- (void)viewDidLoad { 
    [super viewDidLoad]; // Do any additional setup after loading the view, typically from a nib. 






    GTMOAuth2Authentication *auth =[GTMOAuth2ViewControllerTouch authForGoogleFromKeychainForName:kKeychainItemName111 
clientID:kClientId111 clientSecret:kClientSecret111]; 

    if ([auth canAuthorize]) 
    { 
     [self isAuthorizedWithAuthentication:auth]; 
    } 




    } 



- (GTLServiceDrive *)driveService { 
    static GTLServiceDrive *service = nil; 

    if (!service) 
    { 
     service = [[GTLServiceDrive alloc] init]; 

     // Have the service object set tickets to fetch consecutive pages 
     // of the feed so we do not need to manually fetch them. 
     service.shouldFetchNextPages = YES; 

     // Have the service object set tickets to retry temporary error conditions 
     // automatically. 
     service.retryEnabled = YES; 
    } 
    return service; } 



- (IBAction)authButtonMethos:(id)sender { 
    if (!self.isAuthorized) 
    { 
     // Sign in. 

     SEL finishedSelector = @selector(viewController:finishedWithAuth:error:); 

     GTMOAuth2ViewControllerTouch *authViewController =[[GTMOAuth2ViewControllerTouch alloc] initWithScope:kGTLAuthScopeDriveFile clientID:kClientId111 
clientSecret:kClientSecret111 keychainItemName:kKeychainItemName111 
delegate:self finishedSelector:finishedSelector];  


     [self presentModalViewController:authViewController  animated:YES]; 
    } 
    else 
    { 
     // Sign out 
     [GTMOAuth2ViewControllerTouch removeAuthFromKeychainForName:kKeychainItemName111]; 
     [[self driveService] setAuthorizer:nil]; 
     //  self.authButton.title = @"Sign in"; 
     self.isAuthorized = NO; 
     //  [self toggleActionButtons:NO]; 
     [self.driveFiles removeAllObjects]; 
    } 

    } 

- (void)viewController:(GTMOAuth2ViewControllerTouch *)viewController finishedWithAuth:(GTMOAuth2Authentication *)auth  error:(NSError *)error { 
    [self dismissModalViewControllerAnimated:YES]; 
    if (error == nil) 
    { 
     [self isAuthorizedWithAuthentication:auth]; 
    } } 


- (void)isAuthorizedWithAuthentication:(GTMOAuth2Authentication *)auth { 
    [[self driveService] setAuthorizer:auth]; 
    // self.authButton.title = @"Sign out"; 
    self.isAuthorized = YES; 
    // [self toggleActionButtons:YES]; 
    [self loadDriveFiles]; } 



- (void)loadDriveFiles { 



    GTLQueryDrive *query = [GTLQueryDrive queryForFilesList]; 
    query.q = @"mimeType = 'text/plain'"; 

    UIAlertView *alert = [GDUTILITY showLoadingMessageWithTitle:@"Loading files" 
                 delegate:self]; 
    [self.driveService executeQuery:query completionHandler:^(GTLServiceTicket *ticket, 
                   GTLDriveFileList *files, 
                   NSError *error) 
    { 
     [alert dismissWithClickedButtonIndex:0 animated:YES]; 

     if (error == nil) { 
      if (self.driveFiles == nil) 
      { 
       self.driveFiles = [[NSMutableArray alloc] init]; 
      } 
      [self.driveFiles removeAllObjects]; 
      [self.driveFiles addObjectsFromArray:files.items]; 
      //   [self.tableView reloadData]; 
     } 
     else 
     { 
      NSLog(@"An error occurred: %@", error); 
      [GDUTILITY showErrorMessageWithTitle:@"Unable to load files" 
              message:[error description] 
             delegate:self]; 
     } 
    }]; 

    NSLog(@"Click on the login button"); 
} 

我上simulator.So運行此代碼我收到以下錯誤

ld: duplicate symbol _OBJC_METACLASS_$_GTLDriveAbout in 
    /Users/bcod/Library/Developer/Xcode/DerivedData/GoogleDDemo-frrwjztsgtylsxbmkifnctrxzjfh/Build/Intermediates/GoogleDDemo.build/Debug-iphonesimulator/GoogleDDemo.build/Objects-normal/i386/GTLDriveAbout.o 
    and 
    /Users/bcod/Library/Developer/Xcode/DerivedData/GoogleDDemo-frrwjztsgtylsxbmkifnctrxzjfh/Build/Intermediates/GoogleDDemo.build/Debug-iphonesimulator/GoogleDDemo.build/Objects-normal/i386/GTLDrive_Sources.o 
    for architecture i386 

在此先感謝

在code.Please創建

Answer 1

多參考課程中移除谷歌API的所有文件，然後重新添加。

請參考此鏈接，它會幫助你。

duplicate symbols for architecture i386