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  • Ismail Mayat 4511 posts 10091 karma points MVP 2x admin c-trib
    Jan 07, 2013 @ 17:06
    Ismail Mayat
    0

    Upgrade from 4.7 to 4.8.1 issue

    Guys,

    I am attempting to upgrade from 4.7 to 4.8.1 and I get the following error when i hit the site

    The input is not a valid Base-64 string as it contains a non-base 64 character, more than two padding characters, or an illegal character among the padding characters.

     

    It should be giving me the installer.

    Regards

    Ismail

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  • Sebastiaan Janssen 5060 posts 15522 karma points MVP admin hq
    Jan 07, 2013 @ 17:11
    Sebastiaan Janssen
    104

    Clear your cookies. :)

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  • Lou 59 posts 169 karma points
    Jan 21, 2013 @ 22:46
    Lou
    0

    I am trying to upgrade 4.7.1 to 4.9.1, I am doing it incrementally. I had the same problem upgrading from 4.8.0 to 4.8.1.  I cleared the cookies and it worked.  I then had it freezes on the database page at 35%;

    Installing Umbraco

    The Umbraco database is being configured. This process populates your chosen database with a blank Umbraco instance. 

     According to all that I read, going from 4.8.0 to 4.8.1 does not involve any database upgrade. 

    Also I hate seeing this message when I am upgrading, It should say Upgrading , not populating your database with a blank Umbraco Instance.

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