java.lang.NullPointerException (HelperAdapter)

出现了一些奇怪的问题，这些问题只发生在较低的 Android 版本中，例如 Android 8、7.1.1 和 7。`java.lang.NullPointerException at com.airbnb.epoxy.HelperAdapter.onCreateViewHolder(ModelGroupHolder.kt:272) at com.airbnb.epoxy.HelperAdapter.onCreateViewHolder(ModelGroupHolder.kt:252) at androidx.recyclerview.widget.RecyclerView$Adapter.createViewHolder(RecyclerView.java:7788) at com.airbnb.epoxy.HelperAdapter.createViewHolder(ModelGroupHolder.kt:265) at com.airbnb.epoxy.ModelGroupHolder.getViewHolder(ModelGroupHolder.kt:152) at com.airbnb.epoxy.ModelGroupHolder.bindGroupIfNeeded(ModelGroupHolder.kt:131) at com.airbnb.epoxy.EpoxyModelGroup.iterateModels(EpoxyModelGroup.java:223) at com.airbnb.epoxy.EpoxyModelGroup.bind(EpoxyModelGroup.java:136) at com.airbnb.epoxy.EpoxyModelGroup.bind(EpoxyModelGroup.java:61) at com.airbnb.epoxy.EpoxyViewHolder.bind(EpoxyViewHolder.java:68) at com.airbnb.epoxy.BaseEpoxyAdapter.onBindViewHolder(BaseEpoxyAdapter.java:118) at com.airbnb.epoxy.BaseEpoxyAdapter.onBindViewHolder(BaseEpoxyAdapter.java:20) at androidx.recyclerview.widget.RecyclerView$Adapter.bindViewHolder(RecyclerView.java:7847) at androidx.recyclerview.widget.RecyclerView$Recycler.tryBindViewHolderByDeadline(RecyclerView.java:6646) at androidx.recyclerview.widget.RecyclerView$Recycler.tryGetViewHolderForPositionByDeadline(RecyclerView.java:6917) …