Could not load file or assembly 'Microsoft.ReportViewer.WebForms'
I am trying to use the report viewer in asp.net and have uploaded my site. However, when my page containing the report viewer is loaded, it shows the following error:
Could not load file or assembly 'Microsoft.ReportViewer.WebForms, Version=11.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)
This is my first time deploying an ASP.NET website, so I'm not sure what the problem is.
Answer
This link gave me a clue that I didn't install a required update (my problemed concerned version nr, v11.0.0.0)
ReportViewer 2012 Update 'Gotcha' to be aware of
I installed the update SQLServer2008R2SP2
I downloaded ReportViewer.msi, which required to have installed Microsoft® System CLR Types for Microsoft® SQL Server® 2012 (look halfway down the page for installer)
In the GAC was now available WebForms v11.0.0.0 (C:\Windows\assembly\Microsoft.ReportViewer.WebForms v11.0.0.0 as well as Microsoft.ReportViewer.Common v11.0.0.0)