It looks like you're trying to set up your device using Bluetooth but it isn't working. Try to set up with Wi-Fi instead.
Set up device using Wi-Fi
- On your iOS device, open Settings Wi-Fi.
- Connect to the Wi-Fi network that matches your device.
- For Chromecast, look for something like ChromecastXXXX.b.
- For Google Nest or Home speakers or displays, look for something like GoogleHomeXXXX.k.
- Open the Google Home app . Your device should now be detected.
- Tap Next.
- Complete the setup steps.