DotNetNuke Upgrade Error

I have an issue updating to the newest version. Could there be an issue with my web.config file? I can't acc开发者_如何学Goess the admin functionality.

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Sounds like your web.config is confused between choosing 3.5 and 2.0 libraries.

  <assemblies>
    <add assembly="Microsoft.VisualBasic, Version=8.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A" />
    <add assembly="System.DirectoryServices, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A" />
    <add assembly="System.Design, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A" />
    <add assembly="System.Management, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A" />
  </assemblies>

This is roughly what it should be in DNN 4. If you have some 3.5 libraries sprinkled in it. try removing it.

I ran into this issue before, that's how i know.