You can find 1212 on the downloads page. There is a link to “archive of public releases” or something like that.
Rob
Ah yes. found the archive of public released : https://developer.coronalabs.com/downloads/archive
Apparently 1202 was the public release, not 1212.
I take it then that you meant 1202 build when you said "Google changed something before 1212 that causes this error. I don’t know what that is in the manifest. The solution from engineering is to build 1212 or later. "
If not, there is no 1212 build (http://i.imgur.com/TSwIcCu.png)
Sorry, I meant 1202.
Rob