Report Manager error

When I try to start report manager, I get the following error message. What do I need to do?

Server Error in '/Reports' Application.

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Parser Error

Description: An error occurred during the parsing of a resource required to service this request. Please review the following specific parse error details and modify your source file appropriately.
Parser Error Message: Could not load type 'Microsoft.ReportingServices.UI.GlobalApp'.
Source Error:

Line 1: <%@. Application Codebehind="Global.asax.cs" Inherits="Microsoft.ReportingServices.UI.GlobalApp" %>

Source File: C:\Program Files\Microsoft SQL Server\MSSQL.3\Reporting Services\ReportManager\global.asax Line: 1

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Version Information: Microsoft .NET Framework Version:1.1.4322.2300; ASP.NET Version:1.1.4322.2300

Open the IIS MMC plug in, go to the reports and report server virtual directories, right-click and select properties. Go to the ASP.Net tab. ensure the ASP.Net version is set to 2.0

-Lukasz

This posting is provided "AS IS" with no warranties, and confers no rights.

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Hi - when I do this it comes back with this error message?

Failed to map the path '/Reports/App_GlobalResources/'

|||Use regmon and filemon to check if there are any "access denied" errors on ASPNET user. Grant access if you see any error.|||

You can use the aspnet_regiis.exe tool with the "-ga" parameter to grant access to the Web Service account listed in the report server configuration tool or to the application pool idenity assigned to the report manager/report server virtual directory.

-Lukasz

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This was the solution to my problem. If you don't have the ASP.Net tab like me, go to %SYSTEMROOT%\Microsoft.NET\Framework\<Version> and use aspnet_regiis.exe -s <Path to your Reports-VDir>. If everything is default: aspnet_regiis.exe -s W3SVC/1/ROOT/Reports will do it.