GMail “Synchronization Has Stopped Unexpectedly” Error

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For a few days, my offline Gmail was refusing to synch up with the server. Every time I would try, I would instantly get an ! in the synch status and it would say “Synchronization has stopped unexpectedly”. Well, yeah. I had figured that part out.

I’m sure there are lots of reasons for this, but you can open the troubleshooting page by going to Settings -> Offline and scrolling down to the link for the Troubleshooting Page.

On my page, I noticed several errors for Failed to get blob down at the bottom of the page under “Recent Errors”.

A BLOB, of course, is a Binary Large Object. I realized at that point that I had unsynchronized messages with images attached (that is to say with BLOBs attached).

I tried moving these to Drafts, but that still didn’t work, so I copied and pasted the contents into a text editor for safe keeping, deleted the messages, cleared the browser cache, closed the browser, reopened, and reloaded GMail.

Success!

I’m sure there are a lot of other things that can cause this, but I didn’t find any good information on this on Google Groups or with a quick search, so hopefully this will help someone or at least give some directions to look in.

12 Responses to “GMail “Synchronization Has Stopped Unexpectedly” Error”

  1. Anonymous

    thank you for the suggestions! I think this may have worked for me!

  2. Thanks for the confirmation. With only one data point, I couldn’t be entirely sure they were related and I couldn’t find anything at Google or elsewhere that addressed this.

  3. I tried what you suggested but it didn’t work, tried everything but in the end I had to delete my google gears folder and start everything from scratch.

  4. Bummer Liam. I’m glad you got it sorted, but yeah, Gears seems far from perfect, especially on high-latency connections (I’m often on satellite internet).

  5. Thanks so much for the tip- I was completely lost. I did what you said, and it worked, although I actually had to go into my trash and “delete” forever the un-synched messages (I didn’t need them for later). Thanks!

    Leah

  6. Thanks for another confirmation Leah. Obviously it doesn’t work for everyone, since it worked for me “anonymous”, didn’t work for Liam, and half-worked for you. Hopefully your additional tip might help the person!

  7. Had the same problem. First tried clearing cache, etc as recommended but this did not work. What did work was on offline troubleshooting page, under displaying history, I clicked on view your outstanding history. This took me to a page where I was able to remove a piece of mail from my local store that was hanging in the system (my problems started when I first tried to send this message with some attachments that did not load… apparently deleting that mail from my drafts folder was not enough). Gmail resynchronized and now I’m back in business!

  8. Tony – Sorry my tip didn’t work for you, but thanks for adding to the “knowledge base” as it were. Hopefully it will help the next person to happen along this page.

    Thanks again!

  9. Thanks a lot! This worked for me

    “What did work was on offline troubleshooting page, under displaying history, I clicked on view your outstanding history. This took me to a page where I was able to remove a piece of mail from my local store that was hanging in the system “

  10. Thanks a lot for this information. I could not get my offline mail to sync for the last 2 days. But thanks to this information I traced it to a message with a large attachment that I had tried to send but which had failed to go. I had actually put this in drafts and then pasted it into a new mail and sent it using online mail. But after reading this I discovered I had forgotten to remove it from drafts. As soon as I did so my gmail started syncronizing!

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