无法正确将Caml查询放入炒锅

Question

我有一个名为" WorkshopResults"有一个参考，查找字段和参与者;查找一个名为"参与者"的列表，所以我想获取"firstname"。从"Participant"列表。

我错过了什么?

Thanks for help

"<View>
<ViewFields>
<FieldRef Name="Title" /><FieldRef Name="Id" /><FieldRef Name="FirstName" />
</ViewFields>
<Joins>
<Join Type="LEFT" ListAlias="Participant"><Eq><FieldRef Name="Participant" RefType="ID" /><FieldRef Name="ID" List="Participant" /></Eq></Join>
</Joins>
<ProjectedFields><Field ShowField="FirstName" Type="Lookup" Name="Participant" List="Participant" /></ProjectedFields>
<Query><Where /></Query>
</View>"

Answer 1

站点集合的迁移破坏了查找字段😳

感谢