I got it working by removing the service file + remove in the .pro file. Thanks Since this thread got to be about dbus I have a question about sending a method to lock the screen my code is: lock = QDBusMessage::createMethodCall("com.nokia.mce", "/com/nokia/mce/request", "com.nokia.mce.request", "req_tklock_mode_change"); QList<QVariant> args; args.append("locked"); lock.setArguments(args); QDBusConnection::sessionBus().send(lock); and nothing happends. In wiki I found this but it is for the terminal dbus-send --system --type=method_call --dest=com.nokia.mce /com/nokia/mce/request com.nokia.mce.request.req_tklock_mode_change string:"locked" Thanks again!