1. 我資料庫使用Room, Dao層查詢方法使用了suspend

    @Update(onConflict = OnConflictStrategy.IGNORE)
   suspend fun update(listMenu: List<TbMenu>)

然後就會報錯，
error: Type of the parameter must be a class annotated with @Entity or a collection/array of it.
kotlin.coroutines.Continuation<? super kotlin.Unit> continuation);

直接去掉suspend就好了，沒深入研究，我是能用就好，哈哈

2. Room查詢資料，如果返回的是@Entity標識的物件，那必須全部欄位返回，@Query中SQL不能查詢單個欄位否則報錯

···
@Query("SELECT ID,NAME,SUBJECTID,PICTURENAME FROM abcdefg")
fun getPayWay2(): Flow<List>
···

: The columns returned by the query does not have the fields [code,useState,posIseMark,serialNum] in com.baiyuas.TbPayWay even though they are annotated as non-null or primitive. Columns returned by the query: [id,name,subjectid,picturename]
    public abstract kotlinx.coroutines.flow.Flow<java.util.List<com.baiyuas.TbPayWay>> getPayWay2();
                                                           
 

所以這裡必須是SELECT * FROM abcdefg 或者 自定義一個類僅包含查詢的欄位但是不要使用@Entity標識就可以了