When trying to run the Digilent bsd project for Arty, Vivado 2015.4 cannot run Bitgen due to 2 critical warnings. I have been able to run the Digilent Xadc_Demo and GPIO projects successfully with no problems. I'm wondering if there is an error in the .tcl script for the bsd project. I've attached the Vivado critical warning messages. I'm new to both VIvado and Arty so I would appreciate help.