How to fix error related to URHO3D_HANDLER in Urho3D? asked Apr 12, 2021 in C++ by Pantycle_Genefanty (15.1k points) 0 like 0 dislike 66 views I have a error when use URHO3D_HANDLER in Urho3D game engine. In code editor URHO3D_HANDLER always crossed out with a red wavy line. On hover, a hint is displayed that IDE don't know where it defined. Also when I compile then give me error. This error only appears if I use URHO3D_HANDLER to SubscribeEvents. How to fix it? cpp urho3d urho3d_handler handler error Please log in or register to add a comment. 1 Answer 0 like 0 dislike answered Apr 12, 2021 by Pantycle_Genefanty (15.1k points) Check class name in first parameter of URHO3D_HANDLER: URHO3D_HANDLER(ClassName, Method) ClassName should be exists class of your application. Please log in or register to add a comment.