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  • Steve Wintle 4 posts 74 karma points
    Oct 20, 2015 @ 08:29
    Steve Wintle

    Umbraco upgrade from 7.2.6 to 7.3

    Hi, I wonder if anyone else has come across this problem. I have upgraded Umbraco a few times with no issues recently going from version 6 to 7.2.6 and this has been running fine for a few months. Recently I tried a test site upgrade from 7.2.6 to 7.3 and keep getting errors.

    I followed the General Upgrading notes and followed the section 'Manually Upgrading from a zip file package' and replaced the folders as suggested /bin /Umbraco /Umbraco_client

    After doing the upgrade I used WinMerge to copy across my template folders and any other that were missing. However after this I keep getting errors about System.Web.Extensions, Version=, Culture=neutral, PublicKeyToken=31BF3856AD364E35" being the incorrect version post the changes.

    Could anyone out there assist or offer any suggestions?

    Many thanks.

  • Sebastiaan Janssen 4988 posts 15101 karma points MVP admin hq
    Oct 20, 2015 @ 08:32
    Sebastiaan Janssen

    There's more instructions for upgrading to 7.3.0 in the version specific upgrade guide:

  • Steve Wintle 4 posts 74 karma points
    Oct 20, 2015 @ 09:56
    Steve Wintle

    Hi Sebastiaan, and thanks for your reply, I followed the notes you posted coupled with the general upgrade notes and am still getting the error below.

    enter image description here

  • Steve Wintle 4 posts 74 karma points
    Oct 21, 2015 @ 07:48
    Steve Wintle


    I just wanted to bump this up the forum as I am still at a loss with this and was hoping someone would be able to help. I've tried various thing to resolved this but to no avail. Could anyone offer any suggestions?


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