title: Sub-Report giving error: Report cannot be shown
body: <p>I have a SSRS Report with six sub-reports. The sub-reports are using the same shared data source which the main report is using.</p>
  
  <p>When I deploy the report and execute, the sub-report place holder shows error: Report cannot be shown.</p>
  
  <p>I thought it could be due to shared data source. Therefore, I created separate shared data source for each sub-report. This works. The report starts showing all the results.</p>
  
  <p>Please let me know what is this issue. Even though it works, I don't want to create separate shared data source for each sub report.</p>