Unexpected NullPointerException when accessing Fragment arguments in Android Navigation Component
I'm relatively new to this, so bear with me. I'm stuck on something that should probably be simple. I'm experiencing a `NullPointerException` when trying to access fragment arguments in a Fragment that I navigated to using the Android Navigation Component. The arguments are supposed to be passed from the previous Fragment, but when I try to access them in the `onViewCreated()` method, they seem to be null. I've set up my navigation using Safe Args, and I can see that the arguments are defined in the `nav_graph.xml`. Here’s the code for the navigation action in the first Fragment: ```kotlin val action = FirstFragmentDirections.actionFirstFragmentToSecondFragment(myString) naviController.navigate(action) ``` In my second Fragment, I’m trying to retrieve the argument like this: ```kotlin class SecondFragment : Fragment() { private var myString: String? = null override fun onViewCreated(view: View, savedInstanceState: Bundle?) { super.onViewCreated(view, savedInstanceState) myString = arguments?.getString("myString") // This line throws NullPointerException } } ``` I’ve also checked that the argument is correctly defined in my `nav_graph.xml`: ```xml <argument android:name="myString" app:argType="string" /> ``` When I debug, it seems that `arguments` is not null, but calling `getString()` with the key returns null. I’ve verified that `myString` is not null in the `FirstFragment`, so I’m not sure where things are going wrong. Has anyone else encountered this scenario? What could be causing the argument to not be passed correctly? Any help would be greatly appreciated! My development environment is Windows. I'd really appreciate any guidance on this. Any ideas how to fix this? I recently upgraded to Kotlin stable. Any ideas what could be causing this?