I've been searching for several days now looking for threads / solutions in regards to a Report Viewer Problem.
OS - Windows Server 2008 all updates installed
DN FW - 3.5SP1 and 4.0
ReportViewer.exe was and is installed (Version 10.0.30319.1)
The ReportViewer Assemblies are in the GAC
The project is a Visual Studio 2010 project
The application is running in it's own App Pool with the 4.0 framework in integrated mode
In order to pin this down I have reduced a test project to an empty page with a Report Viewer Control and a Button. There is no DataSource and no report associated with the viewer, just the empty viewer control.
The web application runs without errors on my dev box and on a new test environment (with the Web Server in a VM) that I set up to test with.
When I deploy to our test or staging servers the page fails with Java Script errors. The error that is the root cause is "Type is undefined" which is referring to Reserved.ReportViewerWebControl.axd. When using the developer tools for IE the script
is loaded but fails at Line 1 of the script Type.registerNamespace("Microsoft.Reporting.WebFormsClient"); with the message Type is undefined.
'Type' ist undefiniert Reserved.ReportViewerWebControl.axd?OpType=Resource&Version=10.0.30319.1&Name=ViewerScript, Zeile 1 Zeichen 1
When I call the ReportViewerWebCont
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