libc abi.dylib: terminate_handler unexpectedly threw an exception

错误代码:很明显的错误,一定要谨记.

 - (NSInteger)giftCountFullScreen{
     NSArray *arr = [NSMutableArray arrayWithArray:self.arrayGiftGruop];
     for (id data in arr) {
         BaseGiftItem *item = (BaseGiftItem *)data;
         if ([item.image isEqualToString:@"gift_bamboo"] && [item.price isEqualToString:@""]) {
             [arr removeObject:item];
         }
     }
     return arr.count;
 }