WebControl.custom(75) error CS1503: Argument 0: Cannot convert from 'string' to ' System.IntPtr'WebControl.custom(75) error CS1501: No overload for method `gtk_moz_embed_set_profile_path' takes `2' argumentsWebControl.custom(81) error CS1502: The best overloaded match for method 'void Gecko.WebControl.gtk_moz_embed_set_profile_path ( System.IntPtr, System.IntPtr)' has some invalid argumentsWebControl.custom(81) error CS1503: Argument 0: Cannot convert from 'string' to ' System.IntPtr'WebControl.custom(81) error CS1501: No overload for method `gtk_moz_embed_set_profile_path' takes `2' arguments