Unity + Wave + Vive XR Elite: how to trigger EyeTracking calibration from code?

[Rodenstock-VR-Lab]

We are trying to call the EyeTracking calibration activity from code in our App, similar to what's described in this post:

The proposed solution does not work for us, as we get the following error:

Quote

Error Unity AndroidJavaException: android.content.ActivityNotFoundException: Unable to find explicit activity class {vive.wave.vr.eye.calibration/com.htc.vr.unity.WVRUnityVRActivity}; have you declared this activity in your AndroidManifest.xml?

We have tried listing all available packages on the headset (using the following command-line call: adb shell pm list packages) and we don't see the vive.wave.vr.eye.calibration package at all (but there are some others like vive.wave.vr.oem, vive.wave.oxr, vive.wave.passthroughoverlay)

What are we missing here?

- Is the package name incorrect?

- Do we have to install something to get access to this package?

- Do we have to update our AndroidManifest to get access to this package?

Any help is appreciated!