I am trying to write my own widget using C++, but when I create UserWidget.h C++ class and try to compile my project, it shows a lot of errors ( connected as I suppose with not implemented functions from UUserWidget ). I use Rider as my IDE. What could be a problem? H: #pragma once #include "Core…

It’s a linker error. You need to add “UMG” as a module dependency in your MyProject.Build.cs file. You also don’t need all the includes posted above. All you need is “Blueprint/UserWidget.h”