I am getting the following error

Type mismatch: cannot convert from android.app.FragmentManager to android.support.v4.app.FragmentManager

for the following line

FragmentManager frgManager = getFragmentManager();

frgManager.beginTransaction().replace(R.id.content_frame, fragment).commit()

I have the following imports in my class

import android.support.v4.app.Fragment;

import android.support.v4.app.FragmentManager;

import android.support.v4.app.FragmentTransaction;

How to fix the error?

解决方案

Replace getFragmentManager() with getSupportFragmentManager(), and make sure your class is a subclass of FragmentActivity.