"We offer new support options and therefor the forums are now in read-only mode! Please check out our Support Center for more information." - Vuforia Engine Team

DATABASE_LOAD_ERROR

Hello, I started using Vuforia for my uni project and everything went well. I am working on Unity 2020.3.38f1 and I've downloaded Vuforia package 10.12.3. I have created ImageTarget and downloaded database yesterday and when I did that, the downloaded file had Unity logo on them. I've successfully imported Vuforia and created ImageTarget with my Database and everything worked fine until now. When I want to go Play Mode, my camera is black and I get error that says (picture is attached) Exception in callback: Failed to create ImageTargetObserver: DATABASE_LOAD_ERROR.

UnityEngine.Debug:LogErrorFormat (string,object[]) Vuforia.Internal.Utility.UnityLogger:LogError (string,object[]) Vuforia.Internal.Utility.Log:Error (string,object[]) Vuforia.Utility.ExtensionMethods.DelegateHelper:InvokeDelegate (System.Delegate,object[]) Vuforia.Utility.ExtensionMethods.DelegateHelper:InvokeWithExceptionHandling<Vuforia.VuforiaInitError> (System.Action`1<Vuforia.VuforiaInitError>,Vuforia.VuforiaInitError) Vuforia.Internal.Core.Engine:InitOnCameraReady () Vuforia.WebCam:HandleFirstWebCamFrame () Vuforia.WebCam:<Init>b__33_0 (bool) Vuforia.Internal.Utility.VuforiaCoroutineUtility/<RunCoroutineWithTimeout>d__1:MoveNext () UnityEngine.SetupCoroutine:InvokeMoveNext (System.Collections.IEnumerator,intptr) Also I've noticed that downloaded files no longer had unity logo, now they are blank (picture is attached).  I don't know where the problem is since it worked fine couple hours ago.  I'll be very happy if anyone can give me a solution since I am begginer at this.  Thanks in advance.

Attachment

Vuforia database search

How do I search for a database item in Vuforia db or in the metadata of the Vuforia db?

I have the search term predicted by my 0 to 9 hand drawn digit recognition model.

I am trying to make an app that recognises hand drawn digits from 0 to 9 and then augments a 3D model of the predicted digit on top of it.

At present, I have an .onnx model that predicts my digits when drawn on a blank black texture. I have set the AR scene with Vuforia and set this black image as the image target. Everything is working fine except that I dont know how to proceed :(

Too Many Image Targets?

Hi,

I am having an issue with my app where it seems to crash and not work anymore after I’ve added a certain number of image targets. The app used to work just find and display the right stuff and everything for the first 10 image targets or so, but now I cannot get it to work with like 20 image targets. I’ve tested either set of 10 and both work fine on their own, but the app cannot seem to handle them all.

For context, I’ve tried deleting the associated images, text, and videos that are supposed to show with each image when tracked in a variety of different ways but the app will still not work when all 20 target images are in the app.

Does Unity/Vuforia have some issue with having too many image targets?

Thanks for any help!