Missing Google Apps after 4.1.2 was built in Nexus S I built Android 4.1.2 from source for my Nexus S using these instructions. Later I found that there are no Google Apps on the phone and so I cannot set up my Google account or use the Play Store or Google Maps. I tried to download the Google Apps from here and installed them from the SD card but nothing happened. How can I get them installed?

Also, is there any other way I can install Google Apps?
I tried to download the Gapps from here and installed them from the SD
  card but nothing happened. How can I get them installed?


perhaps there is not enough memory in system. Check and flash a lighter version with only essential apps(or trim down the package on your own)