---
"@context": https://schema.org
"@type": TechArticle
"@id": https://www.twilio.com/docs/api/errors/52105#article
headline: "52105: Invalid GCM/FCM package name"
url: https://www.twilio.com/docs/api/errors/52105
inLanguage: en
dateModified: 2026-03-11T20:43:38.000Z
author:
  "@type": Organization
  name: Twilio Developer Education Team
publisher:
  "@type": Organization
  name: Twilio
---

# 52105: Invalid GCM/FCM package name

Log Level: ERROR

## Description

### 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.