Required type: android.support.v4.app.Fragment Provided: android.app.Fragment

1 android.support.v4.app.，而且必须是getSupportFragmentManager();
FragmentManager f = getFragmentManager();
f.beginTransaction().replace(R.id.home_container,fragment).commit();

/**
 * Return the FragmentManager for interacting with fragments associated
 * with this activity.
 *
 * @deprecated Use {@link android.support.v4.app.FragmentActivity#getSupportFragmentManager()}
 */
@Deprecated
public FragmentManager getFragmentManager() {
    return mFragments.getFragmentManager();
}

2 android.app.Fragment.，而且必须是getFragmentManager();
FragmentManager f = getFragmentManager();
f.beginTransaction().replace(R.id.home_container,fragment).commit();
/**
* Return the FragmentManager for interacting with fragments associated
* with this activity.
*
* @deprecated Use {@link android.support.v4.app.FragmentActivity#getSupportFragmentManager()}
*/
@Deprecated
public FragmentManager getFragmentManager() {
return mFragments.getFragmentManager();
}