I use samsung galaxy ace and i want to download whatsapp messenger in my android but when I tried to get it from google play store, it shows error while downloading (error retrieving information from server [RPC:S-7:AEC-7 CFNR-25OX-GSW2A])
Go to "Settings"
Tap Applications
Tap Manage Applications
Select "All"
Scroll to and tap Google Play Store
Tap Force Stop, tap OK, tap Clear data, and tap "OK".
Tap the Back button to get back to the applications list.
Scroll to and tap Google Service Framework
Tap Force Stop, tap OK, tap Clear data, and tap "OK".
Now reboot (switch on & off) your device.
Go to "Settings"
Tap Applications
Tap Manage Applications
Select "All"
Scroll to and tap Google Play Store
Tap Force Stop, tap OK, tap Clear data, and tap "OK".
Tap the Back button to get back to the applications list.
Scroll to and tap Google Service Framework
Tap Force Stop, tap OK, tap Clear data, and tap "OK".
Now reboot (switch on & off) your device.
I am having the same problem and have tried the fix explained above several times and I still have the problem. Someone please help. I have deleted my gmail account, cleared data from play store, download manager, google services framework, and market. From there I rebooted the tablet, added gmail back, and tried to download again but I got the exact same error.
I have even done a factory reset and all the steps listed above with the without any success. My only thought is that the tablet is running 3.1 and maybe there is a versom mismatch.