我正在尝试设置GooglePlay之类的标签，我正在关注thisguide并转换为C#，但在调用tabLayout.SetupWithViewPager时抛出异常.该Activity的代码是这样的:publicclassMainActivity:FragmentActivity{protectedoverridevoidOnCreate(Bundlebundle){base.OnCreate(bundle);SetContentView(Resource.Layout.Main);varviewPager=FindViewById(Resource.Id.viewpager);view