App Gets Crashed on using the StyledTableViewCell class

[pmandpe]

my application get crashed with error [UITableViewCellSelectedBackground setDashWidth:]: unrecognized selector sent to instance 0x7496310

in this method please help me out

• (void)setDashWidth:(int)dashWidth { dashWidth = dashWidth; [(StyledTableViewCellSelectedBackgroundView)self.selectedBackgroundView setDashWidth:self.dashWidth]; [(StyledTableViewCellBackgroundView_)self.backgroundView setDashWidth:self.dashWidth]; }