Check Your Permissions
One problem might be with your permissions. Google Assistant can’t work properly if it doesn’t have access to the Google app and other core functions. For example, Google Assistant needs access to your phone’s microphone to hear voice commands. Here’s how to check permissions on your Android device and make sure Google Assistant has the access it needs.
Check Your Linked Google Account
The problem might stem from mismatched Google accounts. Some music service apps, such as YouTube Music, require your Google Assistant and your music app to be tied to the same Google account. Here’s how to link your Google Assistant device and music service to the same Google Account.
Set a New Default Music Service
If Google Assistant can’t play music, set a new default music service from your linked services.
Link a New Music Account
If Google Assistant still can’t play music after setting another service as your default, link another music app. Here’s how to link a new music streaming service account to Google Assistant:
What to Do When Google Assistant Won’t Play Songs in Your Library
Google Assistant plays music from streaming services like YouTube Music and Spotify, as well as offline music from local storage on your device. If you have trouble getting Google Assistant to play music from your device, say in my library at the end of your voice command. For example, the command Play Sleater-Kinney in my library prompts Google Assistant to open locally stored songs from the band Sleater-Kinney using your default music app.
Create a Playlist to Solve Other Problems
The best workaround for hard-to-resolve, non-specific problems is to create playlists using music files stored on your device, and then ask Google Assistant to play one of these playlists. For example, create a playlist in YouTube Music using locally stored songs. Use the command Play [name of created playlist]. If Google Assistant still can’t play any of your locally stored files, you may have to wait for Google to release a fix that addresses a specific glitch or device-and-service incompatibility. Visit the official Google Assistant support forum for additional information and to report your problem.