Deleting Selected row in UITableview when Button click - ios

Question

I'm getting an Exception while using removeObjectAtIndex.
I've searched in this forum but I haven't found the correct solution for this Exception. Actually, I'm getting the data from server when I click on button, I'm getting success and also I need to delete that row but the selected row is not deleting.
My Exception:- Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: '-[NSCFArray removeObjectAtIndex:]: mutating method sent to immutable object'
*** First throw call stack:
(
0 CoreFoundation 0x000000010cfd1c65 __exceptionPreprocess + 165
1 libobjc.A.dylib 0x000000010c46bbb7 objc_exception_throw + 45
2 CoreFoundation 0x000000010cfd1b9d +[NSException raise:format:] + 205
3 CoreFoundation 0x000000010cfca70e -[__NSCFArray removeObjectAtIndex:] + 94
4 SkigitApplication 0x00000001097fab80 __20-[HomePage Confirm:]_block_invoke + 272
5 SkigitApplication 0x00000001098c8628 __64-[AFHTTPRequestOperation setCompletionBlockWithSuccess:failure:]_block_invoke46 + 40
6 libdispatch.dylib 0x000000011160f186 _dispatch_call_block_and_release + 12
7 libdispatch.dylib 0x000000011162e614 _dispatch_client_callout + 8
8 libdispatch.dylib 0x0000000111616a1c _dispatch_main_queue_callback_4CF + 1664
9 CoreFoundation 0x000000010cf391f9 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE + 9
10 CoreFoundation 0x000000010cefadcb __CFRunLoopRun + 2043
11 CoreFoundation 0x000000010cefa366 CFRunLoopRunSpecific + 470
12 GraphicsServices 0x000000010db6da3e GSEventRunModal + 161
13 UIKit 0x000000010acf7900 UIApplicationMain + 1282
14 SkigitApplication 0x00000001098c65bf main + 111
15 libdyld.dylib 0x0000000111663145 start + 1
16 ??? 0x0000000000000001 0x0 + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException
Here is my code: request is my array
In .h
NSMutableArray *request;
In .m
-(void)Confirm:(id)sender
{
NSString *test = [NSString stringWithFormat:#"WebserviceUrl"];
AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
[manager GET:test parameters:nil success:^(AFHTTPRequestOperation *operation, id responseObject)
{
NSLog(#"JSON: %#", responseObject);
if([[responseObject valueForKey:#"Success"]integerValue])
{
request=[[responseObject valueForKey:#"info"]mutableCopy];
NSLog(#"array=%#",request);
frndcount=[[[request valueForKey:#"is_new"]objectAtIndex:0]mutableCopy];
NSLog(#"frndcount=%#",frndcount);
notification_id= [[[request valueForKey:#"notification_id"]objectAtIndex:0]mutableCopy];
NSLog(#"notification_id=%#",notification_id);
item_id= [[[request valueForKey:#"item_id"]objectAtIndex:0]mutableCopy];;
NSLog(#"item_id=%#",item_id);
frnd_count.text=[NSString stringWithFormat:#"%#",frndcount];
if (deleteIndexPath==0) {
[request removeObjectAtIndex:deleteIndexPath.row];
[self.msg_table deleteRowsAtIndexPaths:[NSArray arrayWithObject:deleteIndexPath] withRowAnimation:UITableViewRowAnimationFade];
}
}
}
failure:^(AFHTTPRequestOperation *operation, NSError *error)
{
NSLog(#"Error: %#", error);
}];
}

Answer 1

Your request object is a NSArray object, that is immutable. you should change it to NSMutableArray and your problem is resolved.
Update
I don't know how you are initialising this object, but if you are doing something like this:
NSMutableArray *request = someData;
the referencing object may be not mutable, so you should resolve it doing this:
NSMutableArray *request = [someData mutableCopy];
Now, you have a mutable data.