     @IBInspectable var fieldTextColor: UIColor = UIColor.black
     @IBInspectable var fieldBkdColor: UIColor = UIColor.white
     @IBInspectable var keyboardType : UIKeyboardType = UIKeyboardType.default
-    @IBInspectable var errorText: String! = "Please supply a valid value"
     @IBInspectable var delegate: BSInputLineDelegate?
     
     @IBInspectable var cornerRadius: CGFloat = 5.0

    public func showError(_ errorText : String) {
        
        self.errorText = errorText
        showError()
    }
    
    public func showError() {
        
        if errorLabel == nil {
            errorLabel = UILabel()

        
        // for debug of error
        if self.errorOn == true {
            showError(self.errorText)
        } else {
            hideError()
        }
