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  • Warren Harding 132 posts 275 karma points
    Oct 09, 2021 @ 01:26
    Warren Harding

    Kestrel Server - No umbracoApplicationUrl for service (yet), skip.

    Hi all, jumping into v9 today and note when running the kestrel server that it's spitting out the following warning:

    [12:21:24 WRN] No umbracoApplicationUrl for service (yet), skip.

    Where is umbracoApplicationUrl defined in the JSON as I can't seem to find this?

    Thank you

  • Mario Lopez 168 posts 952 karma points MVP 3x c-trib
    Jul 18, 2022 @ 10:39
    Mario Lopez

    A bit late, but if someone hits this in the future

    You can set umbracoApplicationUrl manually from the Web Routing section of the configuration.

    "Umbraco": {
      "CMS": {
        "WebRouting": {
          "UmbracoApplicationUrl": ""

    This is normally used on load balanced environments.

    OR, from the official docs:

    By default, Umbraco will set the "umbracoApplicationUrl" to the address made by the first accepted request when the AppDomain starts.

    So, if you haven't set the parameter manually, the warning you are getting is because you haven't visited the site yet. Once you visit it for the first time, the message will go away.

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