: This means the application requested version 9.0.0.0, but it is completely missing from both the local directory and the GAC. Follow the installation steps above.
If you cannot install the older 9.0.0.0 version but have a slightly newer version installed (such as Version 10.0.0.0 from Visual Studio 2010), you can force the application to use the newer version via your configuration file.
If you encounter an error stating that Microsoft.ReportViewer.Common, Version=9.0.0.0 could not be loaded, it usually means the redistributable is missing or t microsoft.reportviewer.common version 9.0.0.0 download
The Role of Microsoft.ReportViewer.Common (v9.0.0.0) in Legacy Applications
Rebuild and redeploy your application. The file will now travel with your executable, eliminating the server-side dependency. Common Troubleshooting Errors : This means the application requested version 9
Right-click ReportViewer.exe and select Run as Administrator .
Build your project. Visual Studio will copy the DLL file directly into your /bin/Debug or /bin/Release folder. Distribute this file alongside your main application .exe . Troubleshooting Common Errors If you encounter an error stating that Microsoft
If you are manually moving the files, Microsoft.ReportViewer.Common usually requires the following supporting files to function correctly:
: Check your application's web.config or app.config file. Ensure that any assembly redirection tags ( ) are either targeting 9.0.0.0 explicitly or updated uniformly to a newer version if you are upgrading the entire application ecosystem.
If you are maintaining the source code of the application, in addition to the installation steps above, you must ensure your Visual Studio project references the correct version: