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ICloudRecoEventHandler missing

March 27, 2019 - 1:09pm #1

Hello, i can't use ICloudRecoEventHandler class.
This problem occurred after the last update.
Please help me

ICloudRecoEventHandler missing

May 19, 2019 - 4:23am #6

Hi there!


I was just trying to implement the Cloud reco sample found here:



and encountered the same problem, here you find the solution:



But then another error appears:

in OnStateChanged function:



TargetFinder doesn't exist anymore..

I guess this should do the work:



but haven't yet tested..


would be nice a docu update..

ICloudRecoEventHandler missing

May 14, 2019 - 9:57pm #5

Hello, i have occurred same problem here, ICloudRecoEventHandler is missing

can someone can help me?

ICloudRecoEventHandler missing

April 29, 2019 - 11:19am #4


This topic has been covered numerous times on these forums, and Unity's Vuforia forums.

The error you're observing is due to a mismatch in the Engine SDK version (using one version of the Vuforia APIs), and the downloaded Engine samples (using another version of the Vuforia APIs). Despite going to the Unity Asset Store and downloading the latest version of the samples, some users still get the wrong version. This has been traced back to how Unity versions artifacts posted to the Asset Store. As Unity is moving towards Package Manager, they no longer invest in their current tools so the issue persists.

The documentation discrepancy comment is a fair one as we continue to strive to improve here. However, the code in our samples provide the best, most recent (and tested) documentation for best practices in using Vuforia Engine features. If you need help with access to these, please DM me.


Vuforia Engine Support


ICloudRecoEventHandler missing

April 28, 2019 - 4:04am #3

Seriously? no answer within a month??

Same problem here, happened after updating vuforia to the last version 8.1.1.

The guide on their official website seems to be not-relevant anymore..


i'll try to find solution somewhere else.. if i'll find no solution, best way then is to use VOID ar instead of vuforia.

ICloudRecoEventHandler missing

April 19, 2019 - 3:14am #2

Hello, we need help on this.

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