If the same authority is used for multiple apps, the later app is unable to installed due to authority conflict . <img width="377" alt="screen shot 2016-11-14 at 5 18 44 pm" src="https://cloud.githubusercontent.com/assets/3823345/20259522/6ef52472-aa90-11e6-85b9-a5a4e7ed6587.png">
If the same authority is used for multiple apps, the later app is unable to installed due to authority conflict .
