Question

The odd thing is that notifications were working before. So I’m not sure what happened. I tried reinstalling my app to the device, but nothing changed.

{"multicast_id":xxxxxxxxxxxxxxxxxxx,"success":0,"failure":1,"canonical_ids":0,"results":[{"error":"MismatchSenderId"}]}

Because this was working at one point, I know I am using the correct keys. I even triple checked based on other SOF threads I came across. What could be the potential problem now? I’ve looked around for a few days now and I’m still at a loss..

** EDIT **

Here’s the POST info when a message is sent out from my server.

Headers

Array
(
    [0] => Authorization: key=xxxxxxx-key-for-browser-apps-from-google-apis-console-xxxxxxx
    [1] => Content-Type: application/json
)

Fields

Array
(
    [registration_ids] => Array
        (
            [0] => xxxxxxxxx-big-old-id-from-the-device-xxxxxxxx

    [data] => Array
        (
            [message] => hello
        )

)

Also

I am using the key associated with Key for browser apps (with referers).

Answer 1

Apparently, when you recompile your app it will sometimes throw off the device id generation to where it won’t match a previous id.

What I have to do is a COMPLETE uninstall of the app on my phone and recompile the app again (via eclipse). This seems quite pathetic, but it’s the closest to a workable solution I have at the moment..