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iByte
Inspiring
November 8, 2025
Solved

Meta XR Simulator does not appear

  • November 8, 2025
  • 8 replies
  • 931 views

Pullin my hair out here - I have the V81 simulator installed on Windows 11. Unity 6.2.10f1. I enable the simulator but the window does not appear. Any suggestions on what to check?

My goal is to use the headset in editor and the simulator in the Multiplayer play mode. When using XRIT and the unity xr simulator in another project, this type setup works quite well . I can have 3 virtual players using  the simulator and I can use the actual headset over the pc link in the editor.

 

I want to replicate this type of setup but using the Meta XR Simulator instead.

 

 

Best answer by iByte

In case anyone else has this issue. It was suggested to me (above) that I make sure Vulkan was the first entry in the graphics API's list in the player settings. When I checked this was already the case for me. On a whim i removed the OpenGLES entry even though it was second on the list and then simulator started to work.

Hopefully this helps someone else out in the future.

8 replies

iByteAuthor
Inspiring
November 8, 2025

[Meta XR Simulator is activated] XR_SELECTED_RUNTIME_JSON is set to C:\Users\Blender\AppData\Local\MetaXR\MetaXrSimulator\81\meta_openxr_simulator.json
META_XRSIM_CONFIG_JSON is set to C:\Users\Blender\AppData\Local\MetaXR\MetaXrSimulator\81\config\sim_core_configuration.json
UnityEngine.Debug:Log (object)
Meta.XR.Simulator.Editor.LogUtils:ReportInfo (string,string) (at ./Library/PackageCache/com.meta.xr.simulator@e73b5fdb5a5a/Editor/Utils/LogUtils.cs:30)
Meta.XR.Simulator.Editor.XRSimUtils/<ActivateSimulator>d__3:MoveNext () (at ./Library/PackageCache/com.meta.xr.simulator@e73b5fdb5a5a/Editor/Utils/XRSimUtils.cs:150)
System.Runtime.CompilerServices.AsyncTaskMethodBuilder:Start<Meta.XR.Simulator.Editor.XRSimUtils/<ActivateSimulator>d__3> (Meta.XR.Simulator.Editor.XRSimUtils/<ActivateSimulator>d__3&)
Meta.XR.Simulator.Editor.XRSimUtils:ActivateSimulator (bool,Meta.XR.Simulator.Editor.Origin)
Meta.XR.Simulator.ToolbarItem/<>c/<<-cctor>b__2_3>d:MoveNext () (at ./Library/PackageCache/com.meta.xr.simulator@e73b5fdb5a5a/Editor/Utils/ToolbarItem.cs:126)
System.Runtime.CompilerServices.AsyncVoidMethodBuilder:Start<Meta.XR.Simulator.ToolbarItem/<>c/<<-cctor>b__2_3>d> (Meta.XR.Simulator.ToolbarItem/<>c/<<-cctor>b__2_3>d&)
Meta.XR.Simulator.ToolbarItem/<>c:<.cctor>b__2_3 ()
Meta.XR.Editor.PlayCompanion.Manager:Select (Meta.XR.Editor.PlayCompanion.Item,bool) (at ./Library/PackageCache/com.meta.xr.sdk.core@d6da9ab40659/Editor/Utils/PlayCompanion/Manager.cs:84)
Meta.XR.Editor.PlayCompanion.Manager:Toggle (Meta.XR.Editor.PlayCompanion.Item) (at ./Library/PackageCache/com.meta.xr.sdk.core@d6da9ab40659/Editor/Utils/PlayCompanion/Manager.cs:90)
Meta.XR.Editor.PlayCompanion.Toolbar/<>c__DisplayClass27_0:<CreateButton>b__1 () (at ./Library/PackageCache/com.meta.xr.sdk.core@d6da9ab40659/Editor/Utils/PlayCompanion/Toolbar.cs:276)
UnityEngine.GUIUtility:ProcessEvent (int,intptr,bool&)

RikXRBootcamp
RikXRBootcamp
New Participant
November 8, 2025

I've seen a similar problem a while back when running the simulator from a laptop. The solution was to put Vulkan at the top of the Graphics API for Windows in the Player Settings.

 

    iByteAuthorAnswer
    Inspiring
    November 10, 2025

    In case anyone else has this issue. It was suggested to me (above) that I make sure Vulkan was the first entry in the graphics API's list in the player settings. When I checked this was already the case for me. On a whim i removed the OpenGLES entry even though it was second on the list and then simulator started to work.

    Hopefully this helps someone else out in the future.

    iByteAuthor
    Inspiring
    November 9, 2025

    Thanks for the reply. Searching the internet I had seen that suggestion but when I checked my project I noticed that Vulcan was already first in the list.

    Synergiz
    Inspiring
    November 14, 2025

    Hi, I have this exact issue but Vulkan has always been the only render pipeline for windows in my project. Weirder, the package still logs as if everything works as intented, but nothing appears and i can control everything from Unity as if i never clicked on simulator.

     

    iByteAuthor
    Inspiring
    November 15, 2025

    Hi do you have Vulkan as the only entry under Android (Meta Quest) as well?

     

    Synergiz
    Inspiring
    November 17, 2025

    Hi, yup

    ilkerkanber1
    New Participant
    May 2, 2026

    If there are still people who can't solve it even after putting Vulkan first:

    1. Remove/delete everything related to Meta XR Simulator if you have it installed.
    2. Download Meta XR Simulator again from Meta's Project Tools section.
    3. After installation, a Meta XR Simulator shortcut will appear on your desktop. Open Properties, enable “Run this program as administrator”, and save it.
    4. Reopen the Unity project and run it with Meta XR Simulator active.
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