Traceback (most recent call last):
  File "/usr/share/kde4/apps/system-config-printer-kde/system-config-printer-kde.py", line 113, in save
    self.gui.on_btnPrinterPropertiesApply_clicked()
  File "/usr/share/kde4/apps/system-config-printer-kde/system-config-printer-kde.py", line 1842, in on_btnPrinterPropertiesApply_clicked
    err = self.printer_properties_response()
  File "/usr/share/kde4/apps/system-config-printer-kde/system-config-printer-kde.py", line 454, in printer_properties_response
    return self.save_serversettings()
  File "/usr/share/kde4/apps/system-config-printer-kde/system-config-printer-kde.py", line 1768, in save_serversettings
    self.show_IPP_Error(None, s)
  File "/usr/share/kde4/apps/system-config-printer-kde/system-config-printer-kde.py", line 1852, in show_IPP_Error
    KMessageBox.error(self, i18n("There was an error during the CUPS " "operation: '%1'.", message),
TypeError: exceptions.RuntimeError cannot be converted to PyQt4.QtCore.QString in this context