    Sentence 1: While downloading the “WhatsApp”  app from Google Play store, it shows “Error code  11” and the app doesn’t get installed, How do 1   this problem?    Sentence 2: I have rooted. a Samsung: Galaxy S  advance running Kitkat 4.4.2. I am getting dn erro1  while ‘installing. most of the apps from the Play|  ‘Store. Why?    