Usage of selenium-webdriver-at-spi

Hi, I am trying to get started with automation gui tests of a qml app using appium. I have been following the nice tutorial at: Appium automation testing | Developer
But after building the selenium-webdriver-at-spi I cant even run properly the Kcalc test. I get a lot of output but I have not been able to figure it out what is wrong. This is the output: output - Pastebin.com

I am using Arch and I just installed the dependencies and built the selenium-webdriver-at-spi.
Does it matter that I am using Gnome instead of KDE if I want to use this driver for testing with Appium?