Issue While deploying 3.7 Sitefinity Website to IIS7. - Upgrading Sitefinity - Upgrading Sitefinity - Progress Community
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Issue While deploying 3.7 Sitefinity Website to IIS7.

  • Issue While deploying 3.7 Sitefinity Website to IIS7.
  • I am very new to Sitefinity. Currently I created a website & deployed to IIS7 sucessfully. But I have to migrate a website developed in Sitefinity version 3.7.

    And I am having problems in deploying that site to IIS7, I searched & found the issue was in Web.Config, therefore I copied the web.Config from 5.2 project into the 3.7 project. But then I had following Error :
    Could not load file or assembly 'Microsoft.IdentityModel, Version=, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified.

    Previously (before changing the web.Config) I was having the 500 - Internal server error.

    the old Web.Config is attached in the attachments(coz, it was very large).


  • Hi Ashish,

    The error you are getting shows that you are missing an assembly from your references folder. However, the assembly by default comes with Sitefinity 5.x and is not required by a 3.7 project. Also the webconfig files of 3.x and 5.x are different, so you might be encountering other errors during the migration as well, therefore I would suggest to follow our upgrade instructions ( and set both sites locally ):

    The following blog post may also be useful, as it is a step-by-step guide through the migration process:

    Victor Velev
    the Telerik team
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