Key hash for Android-Facebook app

Question

I\'m working on an Android app, in which I want to integrate a Facebook posting feature. I downloaded the Facebook-Android SDK, and I got the readme.md (text file) in there,

Answer 1

The simplest solution I have found is this:

• Open up Log Cat
• Try and access Facebook with the Android SDK

• Look for the line in the log that looks like this:

  04-24 01:14:08.605: I/System.out(31395): invalid_key:Android key mismatch. 
  Your key "abcdefgHIJKLMN+OPqrstuvwzyz" does not match the allowed keys specified in your
  application settings. Check your application settings at 
  http://www.facebook.com/developers
  

• Copy "abcdefgHIJKLMN+OPqrstuvwzyz" and paste it into the Facebook Android Key Hash area.