EWS托管API查找具有ItemID的项目

我正在尝试从已删除的项目文件夹中找到项目唯一ID

ItemId id = new ItemId("zTK6edxaI9sb6AAAQKqWHAAA");
SearchFilter.IsEqualTo filter = new SearchFilter.IsEqualTo(ItemSchema.Id, id);
ItemView view = new ItemView(10);
view.PropertySet = new PropertySet(BasePropertySet.FirstClassProperties, EmailMessageSchema.Subject);
FindItemsResults results = _ExchangeService.FindItems(WellKnownFolderName.DeletedItems, filter, view);
Console.WriteLine(results.TotalCount);

此代码返回一个异常说:

Validation failed.
Parameter name: searchFilter

如果我搜索带有Subject的邮件,则相同的代码可以使用.