Hi @adlarch, thanks for reaching out us.
With regard to your issue, I don't understand if it has been solved or not, since the very first post has been deleted and, after, a reply has been left by you in the thread. Can we delete the thread, or can we restore the initial post to give everybody in the community the chance to understand the scope of the second post?
error 2 was resolved by updating the definition to
static Bool SubdivObjectHelpDelegate(const maxon::String& opType, const maxon::String& baseType, const maxon::String& group, const maxon::String& property)