.uproject does not list plugin 'XRBase' as a dependency, but module 'MyGame' depends on 'XRBase'.

[ViaCognita]

Hey there!

I’m using Unreal Engine 5.4.4.

I’m learning how to develop a VR game with C++. To do it, I’m checking the Blueprint’s VR Template project. My first thing I’m doing is replicate the blueprint VR Pawn in C++. This is what I’ve done in my project:

I have added the OpenXR and OpenXRHandTracking:

These plugins are enabled in the .uproject:

"Plugins": [
	{
		"Name": "ModelingToolsEditorMode",
		"Enabled": true
	},
	{
		"Name": "OpenXR",
		"Enabled": true,
		"SupportedTargetPlatforms": [
			"Win64",
			"Linux",
			"Android",
			"VisionOS"
		]
	},
	{
		"Name": "OpenXRHandTracking",
		"Enabled": true,
		"SupportedTargetPlatforms": [
			"Win64",
			"Linux",
			"Android",
			"VisionOS"
		]
	}
]

But in MyGame.Build.cs I have added this:

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

Do I have to add XRBase module here or OpenXR?

How can I fix this warning?

Thanks!

[Rectus_SA (Rectus)]

Enabling the XRBase plugin from the plugins menu should fix the warning.

To access the XR system from C++ code, it is probably enough with those dependencies. You only need the OpenXR module there if you need any of the few features that aren’t abstracted by the HeadMountedDisplay module.

[ViaCognita]

Thanks for your answer.

Is there any documentation, video or tutorial about how to start developing VR with OpenXR and C++?

Thanks again.

[ViaCognita]

By the way, the XRBase plugin is already enabled:

But it isn’t in the .uproject file:

"Plugins": [
	{
		"Name": "ModelingToolsEditorMode",
		"Enabled": true
	},
	{
		"Name": "OpenXR",
		"Enabled": true,
		"SupportedTargetPlatforms": [
			"Win64",
			"Linux",
			"Android",
			"VisionOS"
		]
	},
	{
		"Name": "OpenXRHandTracking",
		"Enabled": true,
		"SupportedTargetPlatforms": [
			"Win64",
			"Linux",
			"Android",
			"VisionOS"
		]
	}
]

[Rectus_SA (Rectus)]

I haven’t seen any documentation anywhere at least.

Try unchecking and checking the plugin. It’s probably been implicitly enabled by the OpenXR plugin.