Question

I am getting an error
‘Attempt to mutate immutable object with appendString:’

and my code is

NSMutableString *resultString= [[NSMutableString alloc]init];


for (NSMutableString *s in self.ArrayValue)
{
    [resultString appendString:s];
    NSLog(resultString);

}  

ArrayValue is NSMutableArray.
I am not able to understand where is the problem

thank you in advance

Answer 1

As posted, the code you have will not give you the error you describe. Probably, somewhere between allocating resultString and the for loop, you are overwriting it with a normal NSSring.