Hello.

I'm a little new to Objective-C / Cocoa so please don't shoot me, but I've been 
looking around for a few hours and can't seem to figure out what I'm doing 
wrong on my own and could use a second/third/fourth set of eyes.

I have NSTimer that runs several times a second against an NSString called 
level,  which is 190 characters long and previously initialized from:

// NSString *level = [[NSString alloc]
//                                               initWithContentsOfFile:path
//                                               encoding:NSUTF8StringEncoding
//                                               error:&error];


During the timer call, the level NSString is modified by the following line of 
code:

level=[level stringByReplacingCharactersInRange:NSMakeRange(5,1) withString:@" 
"];

This operation appears to succeed as I print it via NSLog and it looks fine and 
the length checks out, but the next time through the NSTimer I get a bus error 
and the application dies.

If I comment out the line above, the code continues to run fine. Am I doing 
something wrong in terms of how I am using this method or assigning it back to 
the NSString?


I appreciate the help!

--Jim_______________________________________________

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