reporting-services – 在我的SSRS图表中导致范围参数错误的原因是什么?

为什么我在图表中出现此错误? (
Chart Image)

我在图表中使用这个表达式:

Series:

=Sum(Fields!Mins_Att.Value)/Sum(Fields!Mins_Poss.Value)

Series 1: 

=Sum(Fields!Mins_Att.Value, 
         "Chart2_CategoryGroup2")/Sum(Fields!Mins_Poss.Value, "Chart2_CategoryGroup2")

我收到此错误:

The Y expression for the Chart has a scope parameter that is not valid for an aggregate function.
The scope parameter must be set to a string constant that is equal the name of group, data region or name of dataset.

最佳答案 报告中不存在“Chart2_CategoryGroup2”的范围.

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