Could not load file or assembly 'Microsoft.ReportViewer.Common, Version=11.0.0.0

c# asp.net .net visual-studio-2012 reporting-services
3355307 picture 3355307 · Mar 7, 2014 · Viewed 260.9k times · Source

I recently upgraded my n-tier solution from .NET 3.5 vs 2008 to 4.5 visual studio 2012. Every thing went fine apart from crystal reports and I had to install new runtime crystal reports for visual studio 2012 from the following link http://downloads.businessobjects.com/akdlm/cr4vs2010/CRforVS_13_0_5.exe. After installing the above package I had to resolve some deprecated function and properties of CrystalViewer and after that reports rendering properly in development environment (Windows 7 64 bit, SQL Server 2005, Visual Studio 2012). When I deployed the package in test environment windows server 2008 R2 the Application failed to load by throwing error Could not load file or assembly Microsoft.ReportViewer.WebForms, Version=11

I managed to resolve ReportViewer.WebForms error by copying the DLL from C:\Program Files (x86)\Microsoft Visual Studio 11.0\ReportViewer to bin folder of solution and set property copylocal = true and deployed the package. After that I received the error Could not load file or assembly 'Microsoft.ReportViewer.Common, Version=11.0.0.0 . I tried to search that DLL on my machine but couldn't. when project is running in visual studio, In Debug-> Windows->Module the file is not listed however in global assembly cache that file is installed but I don't know how its installed to global cache and from where . I found one solution that I had to install ReportViewer.msi from microsoft package but if i install this package it asks me to install SQL Server 2012 which I dont wan't. Could any one help me to resolve this issue. Thanks

Answer

Dorschfisch picture Dorschfisch · Sep 11, 2014

Dont know if this is good to anyone, but search all these dlls:

  • Microsoft.ReportViewer.Common.dll
  • Microsoft.ReportViewer.ProcessingObjectModel.dll
  • Microsoft.ReportViewer.WebForms.dll
  • Microsoft.ReportViewer.WinForms.dll
  • Microsoft.ReportViewer.DataVisualization.dll

You find them in C:\Windows\assembly\GAC_MSIL\..., and then put them in the references of your project.

For each of them say: local copy, and check for 32 or 64 bit solution.

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