After fixing missing ReportViewer redistributable, I got the following error:
Report Viewer Configuration Error The Report Viewer Web Control HTTP Handler has not been registered in the application's web.config file. Add
An error occurred during local report processing.
The report definition for report 'C:\inetpub\wwwroot\some_path_to_report\tse.rdlc' has not been specified
Could not find file 'C:\inetpub\wwwroot\some_path_to_report\tse.rdlc'.
It turned out that Visual Studio 2010 C# / ASP.NET does not include .rdlc files when publishing application. This can be solved by going to the your_file.rdlc properties, and changing ‘Build Action’ from ‘Embedded Resource’ to ‘Content’.
Here is a screen-shot: