java.lang.IllegalStateException: Fragment no longer exists for key f1: index 3

Question

I want to understand this exception in order to implement a proper fix.

There\'s a ViewPager and it uses a FragmentStatePagerAdapter to instantiate 2 fragments via g

Answer 1

Use

getFragmentManager()

in fragment adapter not child fragment manager

PagerAdapter adapter = new PagerAdapter(getFragmentManager());

I hope this helps.