i\'m trying to use MBProgressHUD. i added header an .m to project, imported header in class and call MBProgressHUD from an ibaction in this way:
-(IBAction)s
In your Xcode project, select your MBProgressHUD.m file in the list of files (along the left edge of the workspace) and look at the File Inspector for that file.
MBProgressHUD.m
Make sure the checkbox is ON for your project in the "Target Membership" setting.