Why is "UUserWidget is not a type name" when I try to declare the variable?

Development Programming & Scripting UI
, , , ,
1

Every where Ive looked has told me to declare it like so:

UUserWidget* MyMainMenu;

But when I do I get an Intellisense error stating “UUserWidget is not a type name”

If I declare it like so:

class UUserWidget MyMainMenu;

It suddenly becomes fine with UUserWidget, but instead flags MyMainMenu with “incomplete type is not allowed”

How do I properly declare a UUserWidget ?

2

Hi Erdrik,

At first I though it was a simple "did you include UserWidget.h but it’s not only that.

the fix is quick though, just add UMG to the build dependencies and add a few header to your project.

Here’s the tutorial that will give you the correct ones, just tried it and got it to work withing 2 minutes

Enjoy

  • Marc
3

BTW, you just need step 1 and 2, and then #include “Blueprint/UserWidget.h” where you want to use UUserWidget* myWidget;

4

I already have both the dependency entries and the includes, and tried to follow that tutorial.

I can not get to step four.

I did just notice another error tho:

#include "Blueprint/UserWidget.h"

is throwing: cannot open source file “Blueprint/UserWidget.h”

5

include the full path my friend: #include “Runtime/UMG/Public/Blueprint/UserWidget.h”

6

That is the full path for the include in ‘MyProjectName.h’(which I have in place already)

I was refering to the include in the created widget header.(InventoryWidget in the tutorial IIRC)

In the tutorial InventoryWidget’s include reads:

#include "Blueprint/UserWidget.h"

I Tried your suggestion anyway, and all it did was move the error to:

#include "InventoryWidget.generated.h"
7

You would never need to copy paste this one (InventoryWidget.generated.h)
Its either automatically added for you if that’s the name of your class, or you don’t need it.

8

Bit of a late reply but I ran into this problem… Needed to add UMG, Slate and SlateCore to the public dependencies in the build file, check out: A new, community-hosted Unreal Engine Wiki - Announcements - Unreal Engine Forums