Error in creating any chart/table/metric in Reporter

[Ashish]

Hi,
I am trying to create Charts / Metric and Table in Reporter but unable to do that .

Steps

1. Already created modules with data in it.
2. In reporter adding same module and data to Datasource
3. Scenario ? I don’t know what is scenario tab here.
4. After trying to create any chart/table/metric it gives message as
   

Please let me know what I am missing or doing wrong. Thanks.

[tjerman]

We found something similar not so long ago – after defining the data sources, if you save the report before adding display elements, does the error go away?

[Ashish]

Thank you so much tjerman;
Yes, it worked.