我正在使用Android-R8，并且存在以下R8警告：
R8 warnings
Missing class: javax.xml.stream.XMLStreamReader
Missing class: javax.xml.stream.util.XMLEventAllocator
Missing class: javax.xml.stream.events.Characters
Missing class: javax.xml.stream.events.DTD
Missing class: javax.xml.stream.XMLOutputFactory
Missing class: javax.xml.stream.EventFilter
Missing class: javax.xml.stream.events.Comment
Missing class: javax.xml.stream.events.Attribute
Missing class: javax.xml.stream.events.NotationDeclaration
Missing class: javax.xml.stream.events.ProcessingInstruction
Missing class: javax.xml.stream.events.EndElement
Missing class: javax.xml.stream.events.StartDocument
Missing class: javax.xml.stream.Location
Missing class: javax.xml.stream.util.XMLEventConsumer
Missing class: javax.xml.stream.events.EndDocument
Missing class: javax.xml.stream.events.XMLEvent
Missing class: javax.xml.stream.XMLInputFactory
Missing class: javax.xml.stream.events.EntityDeclaration
Missing class: javax.xml.stream.XMLEventWriter
Missing class: javax.xml.stream.events.Namespace
Missing class: javax.xml.stream.StreamFilter
Missing class: javax.xml.stream.events.EntityReference
Missing class: javax.xml.stream.events.StartElement
Missing class: javax.xml.stream.XMLEventFactory
Missing class: javax.xml.stream.XMLStreamWriter
Missing class: javax.xml.stream.XMLEventReader
APK已成功构建，但无法安装。 有人有类似的问题吗？