How do you get to the 2.0 version? I'm not finding it via searching the app store. (I do however, find dozens of various gmail related crapware.)

Edit: tried the link above and still get the same error (and I've never installed it before, so this should be a fresh install).

I had the same problem. I found it by searching for this string exactly: "Gmail email from Google"

The built-in updates notification item didn't work, but searching your phrase, finding the item, and then trying "Update" did work.

I went to the direct link without deleting the old app, and it worked for me.

Thanks. This worked for me.

This worked for me as well.