Hi MLR, well, if kgtk-qt3-trinity is not installed, here is another potential source of problems: gtk-qt-engine-trinity and gtk3-tqt-engine-trinity. In Trinity Control Center, check the GTK engine setting and set it to another engine, than QT-Engine and TQT-Engine. Cheers -- Slávek On Sunday 02 of December 2018 08:38:04 MLR wrote: > Hello Slávek, > > the package kgtk-qt3-trinity is not installed. > > > Have a nice day > > On 01.12.18 12:01, Slávek Banko wrote: > > Hi MLR, > > > > the problem with start arduino ide is definitely not caused by > > writing to /etc/tqt3/tqt_plugins_3.5rc.tmp. This message only diverts > > attention from the real problem. Please do: > > > > 1. apt-get purge kgtk-qt3-trinity > > 2. log out from TDE > > 3. log in again to TDE > > 4. try to run arduino ide > > > > Cheers > --------------------------------------------------------------------- To unsubscribe, e-mail: trinity-users-unsubscribe@xxxxxxxxxxxxxxxxxxxxxxxxxx For additional commands, e-mail: trinity-users-help@xxxxxxxxxxxxxxxxxxxxxxxxxx Read list messages on the web archive: http://trinity-users.pearsoncomputing.net/ Please remember not to top-post: http://trinity.pearsoncomputing.net/mailing_lists/#top-posting