I am New to Vuforia and Unity, I am studying 6th Std SRM public School, Chennai.I am trying to execute videoplayback sample, but i couldnt, 

After long search I found this solution, Its worked for me.

Solutions

1, double-click to open the script location, find the location, put the return Unzip.Unzip (path, fileNameinZip);

2. Change to return Unzipper.Instance.UnzipFile (path, fileNameinZip);

Sample Part Code

public Stream UnzipFile(string path, string fileNameinZip)

        {

    #if !EXCLUDE_JAVASCRIPT

            return Unzipper.Instance.UnzipFile(path, fileNameinZip);

    #else

            return null;

2, Save file. I hope it will solve the problem

Hello,

The original error reported below was for upgrading Vuforia Engine SDK 6.2 to a recent version. We don't have a clear upgrade path for this due to the large jump in versions.

If this error is also occurring for upgrading for more recent versions of Engine SDK (8.0, 8.1), please provide relevant information so that we can attempt to reproduce and triage.

Thanks,

Vuforia Engine Support

Vuforia, 



Did you guys find the solution ? Its a big flaw if a SDK is not providing support in their latest versions. Developers are really struggling with this Unzip error. Any update on this question ?

I exchanged the tools folder with previous version now previous error of "unzip does not exist" is gone but new error is encountered "Resource compilation failed!"  what to do

I also encountered the same error, so now what's the solution

Hello,

Unfortunately, the use of Vuforia Engine SDK 6.2 with Unity 2018.3 is not supported.

Thanks,

Vuforia Engine Support

I get this error when i try to use the AR camera  from Vuforia package into newest version of unity.

I use:

Unity 2018.3.0f2 personal 

vuforia-unity-6-2-10-unitypackage

unitysetup Vuforia AR-support-for-editor-2018.3.0f2.exe

I have done a lot of click here and there . I also have checked the vuforia augmented support from XR settings  but still the error persist. Please help!

Hello,

We are unfamiliar with this error. Can you provide some additional details:

• Starting Unity Editor version
• Targeted Unity Editor version for upgrade
• Vuforia SDK version (start)
• Vuforia SDK version (target)

Thanks,

Vuforia Engine Support

Hey! 

Unfortunately, I didn't find a solution but I think that the problem is the incompatibility between Vuforia and last update of Unity.

Did you find a solution? I have the same problem