I'm on Kubuntu 12.04, and got the following error when trying to run Sencha Architect 2.1;
Loading libion: /home/shakir/.local/share/data/Sencha, Inc./Sencha Architect 2.0/libion-1.4.0.so
Cannot mix incompatible Qt library (version 0x40801) with this library (version 0x40800)
Aborted (core dumped)
I'm using 64 bit edition for both the OS and Architect.