Applicable XR devices This guidance helps you build experiences for these types of XR devices. [Learn about XR device types →](https://developer.android.com/develop/xr/devices)  Audio \&
Display Glasses [](https://developer.android.com/develop/xr/devices#audio-display) [Learn about XR device types →](https://developer.android.com/develop/xr/devices)
You might encounter issues while [creating virtual devices](https://developer.android.com/develop/xr/jetpack-xr-sdk/run/create-avds/glasses) or
[running your app's augmented experiences on the emulator](https://developer.android.com/develop/xr/jetpack-xr-sdk/run/emulator/glasses). If you do
encounter issues, see the sections on this page for help resolving common
issues.
Some errors have multiple possible causes. This document lists some common
errors and their fixes, but you might encounter the same error message for a
different reason.
> [!NOTE]
> **Note:** If you don't see an issue listed here, you can also check the [release
> notes](https://developer.android.com/studio/releases/emulator) and [known issues](https://developer.android.com/studio/run/emulator-troubleshooting) for the core Android Emulator to see if your issue is listed there. If you encounter a new issue, please see the [support
> page](https://developer.android.com/develop/xr/support#android-xr-emulator) to see how to report the issue to us.
## Can't pair emulators using Pairing Assistant
While [pairing the emulators using the Pairing Assistant](https://developer.android.com/develop/xr/jetpack-xr-sdk/run/create-avds/glasses#pair-avds), the process fails.
### Cause
The Pairing Assistant can't find both emulators or is having another issue
while pairing.
### Fix
Follow these steps to manually pair the emulators on the phone AVD:
1. In the Android Studio **Device Manager** , find the [glasses AVD
that you created](https://developer.android.com/develop/xr/jetpack-xr-sdk/run/emulator/xr-headsets-glasses-troubleshoot) and click **Start**.
2. Check that the glasses AVD has fully launched. You'll see a "Pair phone
to ..." message.
3. In the Android Studio **Device Manager** , find the [phone AVD
that you created](https://developer.android.com/develop/xr/jetpack-xr-sdk/run/emulator/glasses) to act as a host device for the glasses emulator,
and click **Start**.
4. Check that the phone emulator has fully launched by waiting until you see
the Home screen.
5. On the phone emulator, launch the Glasses app
6. Select **Set up glasses**.
7. When prompted, select **Grant permissions** and accept the permissions
request required by the Glasses Core app.
8. Select **Begin Pairing**.
9. Select the glasses AVD from the list of devices.
The emulators now attempt to pair to each other.
10. During pairing, accept the association request for the
Glasses Core app.
11. Select **Next** to finish the pairing process.
> [!NOTE]
> **Note:** After you've completed pairing the first time, the emulators automatically reconnect the devices to each other whenever you launch them. If the emulators fail to reconnect the devices, follow the troubleshooting steps for when the [emulators don't reconnect the devices on relaunch](https://developer.android.com/develop/xr/jetpack-xr-sdk/run/emulator/glasses-troubleshoot#emulators-dont-reconnect).
## Emulator for glasses not in pairing mode
While [pairing the emulators](https://developer.android.com/develop/xr/jetpack-xr-sdk/run/create-avds/glasses#pair-avds) using the Pairing Assistant or manually by
following the steps in the preceding section, you encounter a message that says
"Disconnected" or "Couldn't pair glasses" and the emulators won't pair.
 The "Disconnected" message indicates an issue with pairing.
 You might see this message in the Glasses app if there are issues while pairing.
### Cause
The glasses emulator isn't in pairing mode.
### Fix
1. Stop the glasses emulator.
2. In the Android Studio **Device Manager** , find the glasses AVD
and click **Wipe Data** in the overflow menu.
3. Attempt to pair again [using the Pairing Assistant](https://developer.android.com/develop/xr/jetpack-xr-sdk/run/create-avds/glasses#pair-avds), and then try
[manually pairing](https://developer.android.com/develop/xr/jetpack-xr-sdk/run/emulator/glasses-troubleshoot#pairing-assistant-fix) if that doesn't succeed.
## Paired emulators don't reconnect devices on relaunch
After [initial pairing](https://developer.android.com/develop/xr/jetpack-xr-sdk/run/create-avds/glasses#pair-avds), the emulators don't reconnect the devices to each
other when launched.
### Cause
A connectivity issue is stopping the devices from reconnecting.
### Fix
First, try the following method:
1. Stop the phone emulator and the glasses emulator.
2. In the Android Studio **Device Manager** , find the phone AVD
and click **Cold Boot** in the overflow menu.
3. Wait for the phone emulator to fully boot, and then relaunch the glasses
emulator.
If this method doesn't work, follow these steps:
1. Stop the glasses emulator.
2. In the Android Studio **Device Manager** , find the glasses AVD
and click **Wipe Data** in the overflow menu.
3. On the phone emulator, launch the system **Settings** app.
4. Select **Connected devices**.
5. Find the glasses device and select
**Device details**.
6. Select **Forget \> Forget device**.
7. [Pair the devices](https://developer.android.com/develop/xr/jetpack-xr-sdk/run/create-avds/glasses#pair-avds) again.
## Glasses won't associate with phone
During [pairing](https://developer.android.com/develop/xr/jetpack-xr-sdk/run/create-avds/glasses#pair-avds), the glasses won't associate with the phone.
### Cause
A connectivity issue is stopping the Glasses Core app from
detecting the glasses AVD.
### Fix
First, try forgetting the Bluetooth device and re-pairing:
1. On the phone emulator, launch the system **Settings** app.
2. Select **Connected devices**.
3. Find the glasses device and select **Device details**.
4. Select **Forget \> Forget device**.
5. [Pair the devices](https://developer.android.com/develop/xr/jetpack-xr-sdk/run/create-avds/glasses#pair-avds) again.
If this method doesn't work, follow these steps:
1. Stop the glasses emulator.
2. In the Android Studio **Device Manager** , find the glasses AVD
and click **Wipe Data** in the overflow menu.
## Projected activity won't launch on emulator
Your [projected activity](https://developer.android.com/develop/xr/jetpack-xr-sdk/glasses/first-activity) won't launch on the glasses emulator.
### Cause
An issue is preventing the activity from being projected to the display.
### Fix
Follow the same troubleshooting steps as when the [emulators don't reconnect the
devices on relaunch](https://developer.android.com/develop/xr/jetpack-xr-sdk/run/emulator/glasses-troubleshoot#emulators-dont-reconnect).
## Can't use Gemini Live on the glasses emulator
While trying to use Gemini Live on the glasses emulator, you see the
following messages:
### Cause
The Google app needs to be updated to the latest version (minimum required
version is 16.46.63) on the phone emulator.
### Fix
1. In the Android Studio **Device Manager** , find the [phone AVD
that you created](https://developer.android.com/develop/xr/jetpack-xr-sdk/run/emulator/glasses) to act as a host device for the glasses emulator,
and click **Start** .
2. Open the Google Play Store app.
3. Search for "Google" and select the Google app.
4. Select **Update**.
## Can't install the public glasses emulators
You can't install the glasses emulators on the latest Android Studio Canary.
### Cause
You installed the glasses emulators before it was available as part of Android Studio Canary in the [Developer Preview 3](https://android-developers.googleblog.com/2025/12/build-for-ai-glasses-with-android-xr.html).
### Fix
Uninstall your previous glasses emulators and install the public version.
1. Open Android Studio.
2. Open the **SDK Manager**.
3. Check the **Show Package Details** checkbox. 
4. Clear **Android XR GlassesCore Phone** system image under any of the **Android 16.0** foldouts and click **Apply** to uninstall. 
5. Clear **Android XR Glasses SDK System Image** under any of the **Android 16.0** foldouts and click **Apply** to uninstall. 
6. Open the **Virtual Device Manager** and delete all **XR Glasses** and **XR GlassesCore Phone** devices. 
After uninstalling the previous EAP glasses emulator, see our [documentation](https://developer.android.com/develop/xr/jetpack-xr-sdk/run/create-avds/glasses)
to install the public glasses emulators in Android Studio Canary.
## See also
- [Create virtual devices for audio glasses and display glasses](https://developer.android.com/develop/xr/jetpack-xr-sdk/run/create-avds/glasses)
- [Run your app's augmented experiences on the emulator](https://developer.android.com/develop/xr/jetpack-xr-sdk/run/emulator/glasses)