Instance method not found (return type defaults to 'id')

Instance method not found (return type defaults to 'id')

I am taking a warning from Xcode :
Instance method '-presentModalViewController:animated:completion:' not
found (return type defaults to 'id')
Here is the code:
NewsWebViewController *sampleView = [[[NewsWebViewController alloc]
init] autorelease];
[self presentModalViewController:sampleView animated:YES completion:nil];
}
I try your different solution before to you contact, Please considerate my
apology, i'm french and i translate with google translate.
In you thanking by advance.