mert
yep it's related to the keyboard layout in Dvorak it's double pasting but USA keyboard works fine.
Here is the link of my error https://www.dropbox.com/s/4m4yaxbaod2130r/Screenshot%202014-09-12%2001.02.57.png?dl=0
of course but i've downloaded from master repo. you can download from there too here is the link https://www.dropbox.com/s/xhisdcq2ohnqyk0/SwiftAppMenuController-master.zip?dl=0
same problem..