Could Not Load File Or Assembly 'Microsoft.ReportViewer.Common, Version=11.0.0.0
Answer : 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. You can install the Microsoft Report Viewer 2012 Runtime and change your references so they point to the ones installed by the runtime. http://www.microsoft.com/en-gb/download/details.aspx?id=35747 I have installed the runtime without it asking for SQL Server 2012. Before installing try uninstalling any previous versions of report viewer. As Microsoft.ReportViewer.2012.Runtime has Microsoft.ReportViewer.WebForms , Microsoft.ReportViewer.Common and Microsoft.ReportViewer.ProcessingObjectModel libraries, just run this command on PM Console: ...