Error while using parsley framework

Hi,

  i am getting below error whilr running flex application in parsley framework .

Error Details:

param count mismatch,birt params=2 optional=2 mx.modules::IModuleInfo/mx.modules:IModuleInfo::load()

Please help me

param count mismatch

Illegal override of ModuleInfoProxy in FlexModuleSupport.as$348.ModuleInfoProxy.