Looks like your site on your host is not running under .NET 4.

You need to either change it so it is, or I believe there's a version of Umbraco 4.5 that runs under .NET 3.5 (I'm not 100% on this).

Best of luck

Rich

Thanks Rich,

For anyone else having this problem with Softsys this is the reply I got from support.

"It apears that this config section would already be declared on the server level or may be something is messing up. I've commented it out for now and you can go ahead with your installation."

It seems to be working with the section commented but I don't know if there will be any side effects.

Hi,

DotNetPanel has become opensource under the name WebSitePanel (www.websitepanel.net) - tell your host to upgrade as there won't be any further updates to DotNetpanel.

/ulrich

Hi

I had the same problem, and it also got fixed by commenting the AJAX stuff out.

But now I get error about the .NET Framework. Gonna read a bit about that part.

/Thomas

Umbraco 4.1 RC only ran under .NET Framework 4.0 but Umbraco 4.5 was supposed to work under .NET Framework 3.5 OR 4.0.  I tried installing today under .NET 3.5 and ran into the same error.  Switching to .NET 4.0 fixes that error.

Dan

Hi

As posted, the DotNetPanel doesn't support .NET 4.0 and my hoster SeekDotNet has to enable .NET 4.0 framework manually for each site.

/Anders

I was having the same issue with SoftSys and Williams post sorted out the issue for me.

Anders, DotNetPanel (now WebSitePanel) indeed supports .NET 4.0!

If your hosting provider has trouble with it I can provide hosting with full support for .NET 4.0/umbraco 4.5 and with WebSitePanel (former DotNetPanel) and its very fair priced... ;)

Ulrich Wagner Gade Ebsen
ECORE

If you want, you can find the umbraco 4.5 for .net 3.5 here: http://nightly.umbraco.org/ (may not be production stable, haven't experienced problems though)

I was able to solve my issue by enabling Allowing .NET 4.0.3 under ISAPI Restrictions:

following is to solve this problem. it's chinese. I post it here just want to let someone know where to do this.

:
iis7
xx\xx\xxx\web.config
133
:"system.web.extensions",


Line number: 154
Error: The configuration section 'system.web.extensions' cannot be read because it is missing a section declaratio
http://our.umbraco.org/forum/getting-started/installing-umbraco/10095-Umbraco-45-Dontnetpanel-Server-Error-systemwebextensions

IIS7
1..net 4.0
2..net4.0(>>>>)
3.“”Set the Manage Pipeline mode from Integrated to Classic
Run website on IIS7 (Vista) in classic mode
IIS



http://forums.asp.net/p/1547286/3784899.aspx
 

This is because config section hasn't declared. in 4.0 webconfig you have to add it manually.

<configSections>

    <sectionGroup name="system.web.extensions" type="System.Web.Configuration.SystemWebExtensionsSectionGroup, System.Web.Extensions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35">
      <sectionGroup name="scripting" type="System.Web.Configuration.ScriptingSectionGroup, System.Web.Extensions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35">
        <section name="scriptResourceHandler" type="System.Web.Configuration.ScriptingScriptResourceHandlerSection, System.Web.Extensions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" requirePermission="false" allowDefinition="MachineToApplication"/>
        <sectionGroup name="webServices" type="System.Web.Configuration.ScriptingWebServicesSectionGroup, System.Web.Extensions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35">
          <section name="jsonSerialization" type="System.Web.Configuration.ScriptingJsonSerializationSection, System.Web.Extensions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" requirePermission="false" allowDefinition="Everywhere"/>
          <section name="profileService" type="System.Web.Configuration.ScriptingProfileServiceSection, System.Web.Extensions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" requirePermission="false" allowDefinition="MachineToApplication"/>
          <section name="authenticationService" type="System.Web.Configuration.ScriptingAuthenticationServiceSection, System.Web.Extensions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" requirePermission="false" allowDefinition="MachineToApplication"/>
          <section name="roleService" type="System.Web.Configuration.ScriptingRoleServiceSection, System.Web.Extensions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" requirePermission="false" allowDefinition="MachineToApplication"/>
        </sectionGroup>
      </sectionGroup>
    </sectionGroup>

</configSections>

--------
iis7

404

http 404.2 -not found
web"isapiCGI"
IsapiModule
ExecuteReauestHandler
:PageHandlerFactory-ISAPI-4.0_32bit
:0x800704ec


IIS  “ISAPICGI”.net4,

“”“”“”

is working on a reply...