In order to use the Google Assistant, you must share certain activity data with Google. The Google Assistant needs this data to function properly; this is not specific to the SDK.
Open the Activity Controls page for the Google account that you want to use with the Assistant. You can use any Google account, it does not need to be your developer account.
Ensure the following toggle switches are enabled (blue):
- Web & App Activity
- In addition, be sure to select the Include Chrome browsing history and activity from websites and apps that use Google services checkbox.
- Device Information
- Voice & Audio Activity