typeError：无法读取未定义的属性（读取＆＃x27; indexof＆＃x27;）[firebase v9错误]
Bellow是我的代码，其中包含源代码段 （错误从返回语句开始）
const [user, loading, error] = useAuthState(auth);
const [channelInfo ,setChannelInfo] = useRecoilState(channelState)
const [input,setInput] = useState('')
const ChatRef = useRef()
const [chats , setChats] = useState([])
const [chan ,setCHan] = useRecoilState(channelId)
const Router = useRouter()
useEffect(()=>{
return onSnapshot(collection(db,'channels',Router?.query?.id,'messages'),(snapshot)=>{
setChats(snapshot?.docs)
})
},[db])
Bellow is my code that contains the snippet of the source
(the error starts from return statement )
const [user, loading, error] = useAuthState(auth);
const [channelInfo ,setChannelInfo] = useRecoilState(channelState)
const [input,setInput] = useState('')
const ChatRef = useRef()
const [chats , setChats] = useState([])
const [chan ,setCHan] = useRecoilState(channelId)
const Router = useRouter()
useEffect(()=>{
return onSnapshot(collection(db,'channels',Router?.query?.id,'messages'),(snapshot)=>{
setChats(snapshot?.docs)
})
},[db])
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