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  • Meni 271 posts 528 karma points
    Jul 11, 2023 @ 06:03
    Meni
    0

    Upgrade to U12: Boot Failed. Umbraco failed to boot, if you are the owner of the website please see the log file for more details.

    Hi,

    While trying to upgrade from U11 to U12, I got this screen on my home page:

    Boot Failed Umbraco failed to boot, if you are the owner of the website please see the log file for more details.

    How can I access the log if I can't access the back office?

    I'm hosting on Azure.

    Thanks. enter image description here

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  • Meni 271 posts 528 karma points
    Jul 12, 2023 @ 06:09
    Meni
    100

    Was able to resolve it using this answer & a blog post https://our.umbraco.com/forum/using-umbraco-and-getting-started/99949-boot-failed-umbraco-cannot-run

    https://www.nurhakkaya.com/2021/10/how-to-fix-umbraco-v9-boot-failed.html

    Problem was with string connection to database.

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  • Steve Morgan 1349 posts 4458 karma points c-trib
    Nov 17, 2023 @ 13:27
    Steve Morgan
    0

    Not sure this is the exact issue here but for me for v10 -> v12 the local db (sql server) wasn't logging on.

    Updating the conn string in appsettings.json to add ;TrustServerCertificate=true; to the end allowed it to auth and continue

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