designdata

Object does not match target type in DesignData

I'm throwing this out in case someone has encountered this before. When creating DesignData for use within the WPF designer, I get one of two errors: Object does not match target type. at System.Reflection.RuntimeMethodInfo.CheckConsistency(Object target) (SNIP) at Microsoft.Expression.DesignModel.InstanceBuilders.ClrObjec...