UCameraComponent is Undefined

Development Pipeline & Plugins
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1

I’m learning UE through this tutorial: https://docs.unrealengine.com/en-US/Programming/Tutorials/PlayerInput/1

There is a line of code from the first part that Visual Studio is not recognizing:

UCameraComponent* OurCamera =
CreateDefaultSubobject(TEXT(“OurCamera”));

Severity	Code	Description	Project	File	Line	Suppression State
Error (active)	E0020	identifier "UCameraComponent" is undefined	HowTo_PlayerInput	 C:/pathto/MyPawn.cpp,	18
  1. I think that im missing a include statement for “UCameraComponent” but I have no idea what file i would need to include.
  2. If i am correct does this mean i should expect some of the tutorials to be completely outdated or just missing some small changes?
  3. Is there documentation I could search for UE’s classes and what files they are located in?
2

I just haven’t been clicking the “c++ api” filter facepalm:

3

You should look API reference just search class name in doc search or google (add “UE4” if it does not pop up)

In below you have the info:

-In which module class is located, you need to add module to dependencies in *.build.cs of your module if you gonna use the class, or else you will get linker errors

-Header file, UBT automatically configure include paths, so only part of path you need to include is after either “Classes” or “Public” directory. So i case of UCameraComponent is this bolded part:

Runtime/Engine/Classes/Camera/CameraComponent.h

2 Likes
4

The tutorial forgot to include

#include “Camera/CameraComponent.h”

In MyPawn.cpp

I caught this watching

4 Likes
5

Still an issue into 2023, thanks for this catch! Just saved me a headache.

1 Like
6

include “Classes/Camera/CameraComponent.h” this is wrong.
include “Camera/CameraComponent.h” this is correct.