Failed to load OVRPlugin.dll

Unity Engine
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1

Hello, everyone! I started a project today in Unity 2020.3.27f1 and lost a whole day trying to fix this error:

“Failed to load OVRPlugin.dll
UnityEngine.Debug:LogError (object)
Unity.XR.Oculus.OculusLoader:EditorLoadOVRPlugin () (at Library/PackageCache/com.unity.xr.oculus@1.11.2/Runtime/OculusLoader.cs:237)
UnityEditor.EditorAssemblies: ProcessInitializeOnLoadMethodAttributes ()”

I already reinstalled Unity, Oculus Integration Package (version 37.0) and XR Plugin Management, but nothing fixed the error.

The project don’t display the error in “PC, Mac & Linux Standalone” build target, only when I switch to “Android” build target. I cannot even Play an empty scene, because everything in Unity freezes in “Inspector.Tick” loading message.

Can anyone help me with this? This error never happened before and I have several VR apps created in Unity with Oculus Integration plugin.

Thanks in advance.

2

I deleted the version 37 of the Oculus Integration Package and instaled the previous version. The error was solved this way.

1 Like
3

If you need v37 of the integration maybe try the preview oculus xr plugin?

4

Hi,
I am having the same problem… How do you delete the latest version of Oculus Integration Package in order to install the previous version?

Hope doing so it will solve it…

1 Like
5

Install Oculus Integration Package from Asset store.

6

Hi, I have solved this issue by replacing oculus XR Plugin newer version to older one.
There are two steps to solve the issue:

  1. Upgrade Oculus Latest version
    (or)
  2. Downgrade Oculus XR Plugin
    Follow this steps to Downgrade Oculus XR Plugin:
    Releases · needle-mirror/com.unity.xr.oculus · GitHub
  3. Download older version of oculus XR plugin 1.xx.x.
  4. Extract the file, you will see “package.json”.
  5. In package manager,on the left top corner click “+” icon to “add package from disk”, and browse the location where you have dowloaded the package.json.
    there you go, the problem got resolved.