---
page_type: error
code: 52105
message: "52105: Invalid GCM/FCM package name"
level: ERROR
product: Notifications
---

## Error - 52105

### RtdNotification: Invalid GCM/FCM package name

#### Possible Causes

- Application configuration problem.

#### Possible Solutions

- Make sure the message was addressed to a registration token whose package name matches the value passed in the request.