Ios SDWebImage崩溃

当我从应用商店下载应用程序并在设备上运行应用程序时，我的应用程序崩溃。 在上传到app store之前，我从未遇到过与

SDWebImage有关的此类错误

帮我找出确切的问题

线程：崩溃：com.apple.main-Thread

     0  libobjc.A.dylib                0x000000019934c0c0 objc_retain + 32

     1  Venoo                          0x00000001000b95f8 -[UIButton(WebCache) 
         webImageManager:didFinishWithImage:forURL:userInfo:] (UIButton+WebCache.m:152)

     2  Venoo                          0x00000001000b7cc8 -[SDWebImageManager          imageDownloader:didFinishWithImage:] (SDWebImageManager.m:459)
     3  Venoo                          0x00000001000b5560 -[SDWebImageDownloader imageDecoder:didFinishDecodingImage:userInfo:] (SDWebImageDownloader.m:266)
     4  Venoo                          0x00000001000b3cbc -[SDWebImageDecoder notifyDelegateOnMainThreadWithInfo:] (SDWebImageDecoder.m:32)
     5  Foundation                     0x000000018d9b05cc __NSThreadPerformPerform + 328
     6  CoreFoundation                 0x000000018cdef044 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 24
     7  CoreFoundation                 0x000000018cdee3a0 __CFRunLoopDoSources0 + 256
     8  CoreFoundation                 0x000000018cdec638 __CFRunLoopRun + 632
     9  CoreFoundation                 0x000000018cd2d6d0 CFRunLoopRunSpecific + 452
    10 GraphicsServices               0x0000000192a11c0c GSEventRunModal + 168
    11 UIKit                          0x000000018fe5efdc UIApplicationMain + 1156
    12 Venoo                          0x000000010007ee9c main (main.m:13)
    13 libdyld.dylib                  0x0000000199927aa0 start + 4

请发布一些下载图像的代码。uu block UIImage*profileImage=[UIImage ImageName:@“defaultMaleImage”]；[cell.userProfileImageBtn setBackgroundImageWithURL:[NSURL URLWithString:[[self.messageFeeds objectAtIndex:indexPath.row]valueForKey:@“user\u profile\u pic”]]占位符图像：配置文件图像选项：SDWebImageCacheMoryOnly成功：^（UIImage*image，BOOL缓存）{profileImage=image；}失败：^（NSError*error）{}]；cell.userProfileImageBtn.imageView.image=profileImage；上面的代码用于下载映像