Please note that:
1. Goole Assistant works only in English language. You need to set your mobile device locale to an English variant (American English, British English, etc) and after that, you should be able to invoke the Action. To change your language, please follow the below steps:
- On your mobile device, open the Google Home app.
- At the top right, tap your account Assistant settings Languages.
- Tap your current language choose an English language and then search for Hubble Home skill. You can check more at https://support.google.com/googlenest/answer/7550584?hl=en&co=GENIE.Platform%3DAndroid
2. If you use an iOS device, you have to download the Google Assistant app as well. Google Home app restricts the Google Assistant app, so it is not available in all countries. If you cannot find the Google Assistant app, then it means the app is not available in your country. It is Google restrictions, not ours.
3. For Android devices ideally Google Assistant is in-built. If Google Assistant is not in-built then you have to download the Assistant app as well. The Google Home app is optional. Google Home app allows you to access Assistant App settings along with various other features.