android - GCM now losing Registration IDs -


i have several apps on google play extensively use gcm , have been working quite time now. but, of sudden (aug 12, 2015), gcm returning "notregistered" when server posts message it.

this happening enough cause big problems messaging can no longer trusted.

the last part of web response stream is: [{"error":"notregistered"}]}

i log registration id along response stream , registration id attempted use same 1 has been used phone. apps new registration id when first ran necessary application uninstalled , reinstalled make app work again. has changed?

oddly, (or not) problem has occurred on phones running 5.1 lollipop. did possibly miss breaking change? thanks, dean

if using googlecloudmessaging register, 1 possibility these users received upgrade of app. see latest edit eran's answer here.they need re-register gcm. consider using latest registration method using instance ids, has listener token refresh when needed.


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