I can confirm this with the same version, on 8.04. Kdocker seems to work with everything I try except Evolution. When I try to manually specify icons, it still reports the same error. However, if I start Evolution, then use kdocker to send the existing window to the tray, it works perfectly.
I can confirm this with the same version, on 8.04. Kdocker seems to work with everything I try except Evolution. When I try to manually specify icons, it still reports the same error. However, if I start Evolution, then use kdocker to send the existing window to the tray, it works perfectly.