Question

Here is my code.

NSArray *pathSong = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
    NSString *toPath = [[pathSong objectAtIndex:0] stringByAppendingPathComponent:@"Songs"];
    NSString *fromPath=[[pathSong objectAtIndex:0] stringByAppendingPathComponent:@"abc"];
    NSString *strdestination = [fromPath stringByAppendingPathComponent:@"sg.mp3"];
    NSError *Error;
    if([[NSFileManager defaultManager]fileExistsAtPath:strdestination]){
        if([[NSFileManager defaultManager]copyItemAtPath:strdestination toPath:toPath error:&Error]==NO){
            UIAlertView *Alert=[[UIAlertView alloc]initWithTitle:@"copy" message:[NSString stringWithFormat:@"%@",Error] delegate:self cancelButtonTitle:@"Ok" otherButtonTitles:nil, nil];
            [Alert show];
        }
        else{
            UIAlertView *Alert=[[UIAlertView alloc]initWithTitle:@"Not copy" message:[NSString stringWithFormat:@"%@",Error] delegate:self cancelButtonTitle:@"Ok" otherButtonTitles:nil, nil];
            [Alert show];
        }
    }

I am getting the error logo :

Error Domain=NSCocoaErrorDominCode=516 “The operation couldn’t be
completed .(Cocoa arrow 516.)” userInfo=0x681abf0

NSUnderlyingError =0x681b920 “The operation couldn’t be completed
.File exists”

abc folder there is no song name “sg.mp3” but I’m still getting the file exists error. I don’t know where I did mistake?

Answer 1

There is two issues in your code:

1. You need to remove the file if it is already there
2. You need to specify a name for the destination file, means if you use like:

NSString *toPath = [[pathSong objectAtIndex:0] stringByAppendingPathComponent:@"Songs"];

and

[[NSFileManager defaultManager]copyItemAtPath:strdestination toPath:toPath error:&Error];

Then if copy occurs, it will copy the Sg.mp3 file as Songs without any type.

So you need to write it like:

NSArray *pathSong = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *tempPath = [[pathSong objectAtIndex:0] stringByAppendingPathComponent:@"Songs"];
NSString *toPath = [tempPath stringByAppendingPathComponent:@"yourFileName.mp3"];
NSString *fromPath = [[pathSong objectAtIndex:0] stringByAppendingPathComponent:@"abc"];
NSString *strdestination = [fromPath stringByAppendingPathComponent:@"sg.mp3"];
NSError *Error = nil;

if([[NSFileManager defaultManager]fileExistsAtPath:strdestination])
{

  if([[NSFileManager defaultManager]copyItemAtPath:strdestination toPath:toPath error:&Error]==NO)
   {
       UIAlertView *Alert=[[UIAlertView alloc]initWithTitle:@"copy" message:[NSString stringWithFormat:@"%@",Error] delegate:self cancelButtonTitle:@"Ok" otherButtonTitles:nil, nil];
       [Alert show];
   }
   else
   {
      [fileManager removeItemAtPath:strdestination error:NULL];
       UIAlertView *Alert=[[UIAlertView alloc]initWithTitle:@"Not copy" message:[NSString stringWithFormat:@"%@",Error] delegate:self cancelButtonTitle:@"Ok" otherButtonTitles:nil, nil];
       [Alert show];
   }
}

This code will remove the file if exist at destination and then copy the sg.mp3 from abc folder to Songs folder with the name yourFileName.mp3