During running a SSRS report within a Report Viewer webpart that hosted in SharePoint page via Internet Explorer, I got the following error :
s.ArgumentNullException: Value cannot be null.
Cumulative Update package 4 for SQL Server 2008 R2 has not been installed.
To overcome this issue, you should install a Cumulative Update package 4 for SQL Server 2008 R2 from here 2345451
Try to turn off the debug mode in Reporting Service Web.config file, by following the mentioned steps below :
- Open Reporting Service Web.config file that located in
C:\Program Files\Microsoft SQL Server\MSRS10_50.SSRS\Reporting Services\ ReportServer
- Search for compilation tag > Set the debug property to false:
- Click Save
- Try to browse your report that should be now working properly without raising the s.ArgumentNullException error.