Ridiculous error on all google play store Using CM 10.1.3 I have a crazy problem. Whenever I update anything I get this error


  update for (insert Google app here) could not be downloaded due to an error (error while retrieving information from the server. [RPC:S-7:AEC-7 QNHM-TYSO-UNVHY])


It may also be worth telling you the very last 5 letters vary. It also happens to any new apps I attempt to install.
This error can have multiple causes. Some are explained on our sister site, in Error while retrieving information from the server RPC:s-7:AEC-0 in Google play?:


  turns out my credit card info on file needed updated to my new expiration date.


is one possibility. One more:


  RPC:AEC:0 error is known as CPU/RAM/Device/Identity failure.
  
  
  Go to settings >application > Play Store >Clear Data &amp; Clear Cache.
  Go to accounts >Google >Remove account.
  Reboot device.
  Again Settings>Account >Google >Log In.
  


Another reason is explained on AndroidPIT (German): It could be problems with Google servers (same is, btw, reported by users in this thread on AndroidForums.Com). One user reported a work around that did it for him: He tried it at least 10 times on his Android device, without success. So he simply fired up the browser on his computer, and tried it from there -- which immediately worked.

For more details (and possible other solutions/work-arounds), just follow the other results from this Google search.