Callstack:
    at Classes_and_Sessions/The_99_Days_project/99.001_-_2011.09.01/2011.10.15___44
    at Media

MindTouch.Deki.Script.Runtime.DekiScriptRemoteException: parameter 'source' could not convert from 'str' to 'uri'
  at MindTouch.Deki.Script.Runtime.TargetInvocation.DekiScriptRemoteInvocationTarget.InvokeMap (MindTouch.Deki.Script.DekiScriptRuntime runtime, MindTouch.Deki.Script.Expr.DekiScriptMap args) [0x00000] in <filename unknown>:0 
  at MindTouch.Deki.Script.Runtime.TargetInvocation.ADekiScriptInvocationTarget.Invoke (MindTouch.Deki.Script.DekiScriptRuntime runtime, MindTouch.Deki.Script.Expr.DekiScriptLiteral args) [0x00000] in <filename unknown>:0 
  at MindTouch.Deki.Script.DekiScriptRuntime.Invoke (Location location, MindTouch.Dream.XUri uri, MindTouch.Deki.Script.Expr.DekiScriptLiteral args, MindTouch.Deki.Script.Runtime.DekiScriptEnv env) [0x00000] in <filename unknown>:0