error on startup

[SmickeyMcgee]

I'm getting this strange error when i start my game. I thought at first it was cause of my editing the formation and unit images but when i loaded my last working backup mod files i got the same error so i think it's something new. This is the message i get. PLS help cus im almost done my mod and i really wanna play
OutOfBoundsException
1.7.1 2011 11 30 win
{}
{0}
uiplayer.s.FormationLayout.dblAngles f8 o uiplayer.s.FormationLayout i4
uiplayer.s.Formation.Constructor o uiplayer.s.Formation o XmlElement s
uiplayer.s.Formation.InitialiseShared
uiplayer.s.AncientsUI.Initialise o uiplayer.s.AncientsUI o uiplayer.htk.GraphicsArea o XmlDocument
uiplayer.UIImp.Initialise o uiplayer.UIImp o uiplayer.htk.GraphicsArea o uiplayer.EngineUI
uiplayer.s.AncientsUIFactory.uiCreate o uiplayer.UI o uiplayer.s.AncientsUIFactory o uiplayer.htk.GraphicsArea
gameinstance.Program.ThreadStart o gameinstance.Program
Delegate.IM Invoke
util.DelegateThread.Event Run o util.DelegateThread