Show the last script error (if any)

def show_script_error(self):
        """
        Show the last script error (if any)
        """
        # TODO: i18n
        if self.service.scriptRunner.error:
            details = self.service.scriptRunner.error
            self.service.scriptRunner.error = ''
        else:
            details = "No error information available"
        QMessageBox.information(None, "View Script Error Details", details)