Unresolved external symbol when trying to add widget to the viewport

[Kontur]

Hello,
Depending on what you use, you need to add “UMG”, “Slate”, “SlateCore” to your public dependencies in your ProjectName.Build.cs

PublicDependencyModuleNames.AddRange(new string] { "Core", "CoreUObject", "Engine", "InputCore", "UMG" });