Facebook Log Out Error In Android

I had a Log in Button in my Android App. It works fine when I'm logging in. But then I got this error when I'm trying to Log Out. I can't figure it out what is causing the error. 1

Solution 1:

This exception is thrown when an application attempts to perform a networking operation on its main thread. Run your code in AsyncTask or in Thread.

or Add below code in onCreate() method.

StrictMode.ThreadPolicypolicy=newStrictMode.ThreadPolicy.Builder().permitAll().build();
StrictMode.setThreadPolicy(policy);