$ mono OpenRA.Game.exe "SupportDir=~/.openra" UtilityPath=OpenRA.Utility.sh Game.Mods=cnc Graphics.Renderer=Gl
Platform is Linux
Using Gl renderer
Desktop resolution: 1280x1024
Using resolution: 1280x950
Available mods:
        cnc: C&C (devtest-20110716)
        ra: Red Alert (devtest-20110716)
Loading mods: cnc

Unhandled Exception: System.NullReferenceException: Object reference not set to an instance of an object
  at OpenRA.Widgets.WorldInteractionControllerWidget.Draw () [0x00000] in <filename unknown>:0
  at OpenRA.Mods.Cnc.Widgets.CncWorldInteractionControllerWidget.Draw () [0x00000] in <filename unknown>:0
  at OpenRA.Widgets.Widget.DrawOuter () [0x00000] in <filename unknown>:0
  at OpenRA.Widgets.Widget.DrawOuter () [0x00000] in <filename unknown>:0
  at OpenRA.Widgets.Widget.DrawOuter () [0x00000] in <filename unknown>:0
  at OpenRA.Widgets.Widget.DoDraw () [0x00000] in <filename unknown>:0
  at OpenRA.Graphics.Viewport.DrawRegions (OpenRA.Graphics.WorldRenderer wr, IInputHandler inputHandler) [0x00000] in <filename unknown>:0
  at OpenRA.Game.Tick (OpenRA.Network.OrderManager orderManager, OpenRA.Graphics.Viewport viewPort) [0x00000] in <filename unknown>:0
  at OpenRA.Game.Run () [0x00000] in <filename unknown>:0
  at OpenRA.Program.Run (System.String[] args) [0x00000] in <filename unknown>:0
  at OpenRA.Program.Main (System.String[] args) [0x00000] in <filename unknown>:0