Old Sticky Archives

[SOLVED]Known Issue: Installing Vuforia Engine on Unity 2020.3.2 or 2021.1.1

April 7, 2021 - 8:48am #1


Installing Vuforia Engine on Unity 2020.3.2 LTS and 2021.1.1 results in following error: 

An error occurred while resolving packages:

  Project has invalid dependencies:

    com.ptc.vuforia.engine: Error when executing git command. fatal: update_ref failed for ref 'HEAD': cannot update ref 'refs/heads/master': trying to write non-commit object 2aa4b218a1eefc116d8bef718e26f3a08d2e5f02 to branch 'refs/heads/master'

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Known issue with Unity 2019.3.14 or later - Fixed with 9.2.8

June 15, 2020 - 7:57am #1


Using Unity 2019.3.14 or later - including Unity 2019 LTS - Vuforia Engine fails to initialize on iOS devices.

This also affects earlier versions of Vuforia Engine on those Unity versions.

We are working with Unity to resolve this issue as quickly as possible.

In the meantime, please use Unity 2019.3.13 or earlier.

Thank you.

Vuforia Engine Support

Fixed with 9.2.8

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Vuforia IS supported with 2019.3 and beyond

January 27, 2020 - 7:52am #1

Hello Vuforia Developers,

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How to Upgrade/Install to Vuforia Engine 8.6 SDK

December 12, 2019 - 12:20am #1


With Vuforia Engine 8.6 SDK, we've made some changes to our upgrade/install Path.

Please check out following article for more info: https://library.vuforia.com/content/vuforia-library/en/articles/Solution/vuforia-engine-package-hosting-for-unity.html

Thank you.

Vuforia Engine Support

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New Release 8.5 Patch (8.5.9) and samples (8.5.10) are available!

November 6, 2019 - 1:45pm #1


Today we’re launching a patch to the Vuforia Engine 8.5 Unity Extension (8.5.9) to include a fix for a linker error seen in Xcode when building Vuforia Engine iOS apps with Unity 2019.3 beta 8 and later. The new version will be made available via Unity’s package manager.

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Known issue: iOS build failures with Vuforia Engine 8.5.8 & Unity 2019.3 beta

October 24, 2019 - 9:49am #1


We are aware of iOS build failures occurring when using Vuforia Engine 8.5.8 and the latest Unity Editor 2019.3 beta, and we are actively working on resolving the issue with a patch release.


In the meantime, please follow these steps to work around the issue:

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Known issue: Package Manager upgrade to Engine 8.3.9 is incorrect

August 2, 2019 - 1:23pm #1


Unity has informed us that due to a Package Manager issue, the 8.3.8 version of Vuforia Engine was incorrectly listed in Package Manager as 8.3.9.

There is currently no 8.3.9 version of the Vuforia Engine SDK, so this is a false notification.

Apologies for any inconvenience.


Vuforia Engine Support

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Suggested workaround when accessing Unity materials interferes with background texture updates

June 5, 2019 - 2:57pm #1

Vuforia Engine requires a specific setup for the material and its textures in order to ensure that the video background is rendered correctly each frame. Our workaround solution is to not directly use the VB material (which create a new instance), but create a new material and reference textures from a reference to the first one (i.e. sharedMaterial). Our example creates a shallow copy and does all the necessary setup required for rendering the camera feed.

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Workaround: Compiler errors with Unity 2018.4

May 7, 2019 - 2:37am #1

With Unity 2018.4 LTS, you might see compiler errors like below when using Vuforia:

Assets\Vuforia\Scripts\Internal\RuntimeOpenSourceInitializer.cs(61,63): error CS0234: The type or namespace name 'ScriptableRenderContext' does not exist in the namespace 'UnityEngine.Rendering' (are you missing an assembly reference?)

This can be easily resolved by opening that script, and change all occurrences of

#if UNITY_2018_3


#if UNITY_2018

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Known issues with Unity 2019.1

April 30, 2019 - 7:36am #1

We are aware of the following known issues with Unity 2019.1. These issues have not been observed with Unity 2018.4, so if you're impacted we recommend to stay with that version.

Issues seen with Unity 2019.1.x with Vuforia Engine 8.1.X and 8.3.X:

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