Migration from 6.4.2 to 7.0.0, issue with Android tabbed application
Hello all,
Working on migrating an app from 6.4.2 to 7.0.0- I have a main view that has 5 separate tabs. Everything works fine on iOS, but on Android, when navigating to this view, I'm receiving this error:

```
System.TypeLoadException: Could not resolve type with token 01000148 from typeref (expected class 'AndroidX.Fragment.App.FragmentFactory' in assembly 'Xamarin.AndroidX.Fragment, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null')
  at MvvmCross.Platforms.Android.Presenters.MvxAndroidViewPresenter.PerformShowFragmentTransaction (AndroidX.Fragment.App.FragmentManager fragmentManager, MvvmCross.Platforms.Android.Presenters.Attributes.MvxFragmentPresentationAttribute attribute, MvvmCross.ViewModels.MvxViewModelRequest request) [0x00023] in /_/MvvmCross/Platforms/Android/Presenters/MvxAndroidViewPresenter.cs:421
  at MvvmCross.Platforms.Android.Presenters.MvxAndroidViewPresenter.ShowFragment (System.Type view, MvvmCross.Platforms.Android.Presenters.Attributes.MvxFragmentPresentationAttribute attribute, MvvmCross.ViewModels.MvxViewModelRequest request) [0x000a2] in /_/MvvmCross/Platforms/Android/Presenters/MvxAndroidViewPresenter.cs:387
  at MvvmCross.Presenters.MvxPresentationAttributeExtensions+<>c__DisplayClass4_0`1[TMvxPresentationAttribute].<Register>b__0 (System.Type view, MvvmCross.Presenters.Attributes.IMvxPresentationAttribute attribute, MvvmCross.ViewModels.MvxViewModelRequest request) [0x00000] in /_/MvvmCross/Presenters/MvxPresentationAttributeExtensions.cs:56
  at MvvmCross.Presenters.MvxAttributeViewPresenter.Show (MvvmCross.ViewModels.MvxViewModelRequest request) [0x00000] in /_/MvvmCross/Presenters/MvxAttributeViewPresenter.cs:175
  at MvvmCross.Platforms.Android.Views.MvxAndroidViewDispatcher+<>c__DisplayClass2_0.<ShowViewModel>b__0 () [0x00000] in /_/MvvmCross/Platforms/Android/Views/MvxAndroidViewDispatcher.cs:25
  at MvvmCross.Base.MvxMainThreadAsyncDispatcher+<>c__DisplayClass1_0.<ExecuteOnMainThreadAsync>b__0 () [0x00011] in /_/MvvmCross/Base/MvxMainThreadAsyncDispatcher.cs:27
  at System.Runtime.CompilerServices.AsyncMethodBuilderCore+<>c.<ThrowAsync>b__7_0 (System.Object state) [0x00000] in /Users/builder/jenkins/workspace/archive-mono/2020-02/android/release/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/AsyncMethodBuilder.cs:1021
  at Android.App.SyncContext+<>c__DisplayClass2_0.<Post>b__0 () [0x00000] in <7d2292394f8c488b97f5bc2a0ac0240d>:0
  at Java.Lang.Thread+RunnableImplementor.Run () [0x00008] in <7d2292394f8c488b97f5bc2a0ac0240d>:0
  at Java.Lang.IRunnableInvoker.n_Run (System.IntPtr jnienv, System.IntPtr native__this) [0x00008] in <7d2292394f8c488b97f5bc2a0ac0240d>:0
  at at (wrapper dynamic-method) Android.Runtime.DynamicMethodNameCounter.41(intptr,intptr) 
```

Unsure of what is going on, as there is none of my code referenced to go off of.