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  • Kevin 18 posts 121 karma points
    Jun 28, 2022 @ 11:03
    Kevin
    0

    v9 > v10 update - Value cannot be null. Arg_ParamName_Name

    I followed the guide here to update from latest v9 to v10 https://our.umbraco.com/documentation/Fundamentals/Setup/Upgrading/version-specific#version-9-to-version-10

    All seemed to go ok but when i build I get the following in startup.cs

    enter image description here

    Which then goes to program.cs and throws

    This exception was originally thrown at this call stack:
    [External Code]
    myapp.Startup.Configure.AnonymousMethod__4_1(Umbraco.Cms.Web.Common.ApplicationBuilder.IUmbracoEndpointBuilderContext) in Startup.cs
    [External Code]
    myapp.Startup.Configure(Microsoft.AspNetCore.Builder.IApplicationBuilder, Microsoft.AspNetCore.Hosting.IWebHostEnvironment) in Startup.cs
    [External Code]
    myapp.Program.Main(string[]) in Program.cs
    

    Any ideas?

  • Dennis 75 posts 397 karma points MVP 2x
    Jun 28, 2022 @ 14:25
    Dennis
    0

    Hi Kevin!

    We've had this error recently as well and we got pointed out that it may be the permissions on your database that are off. Umbraco may be unable to update the tables in your database and throws this random meaningless exception.

    To solve this, make sure that the user that connects to the database has the right permissions to alter the database.

  • Thondar 1 post 21 karma points
    Jun 28, 2022 @ 17:04
    Thondar
    0

    Im getting this same error on a clean install of umbraco 10, any ideas?

  • James Cordrey 11 posts 113 karma points
    Jun 29, 2022 @ 03:36
    James Cordrey
    100

    I was getting the same issue when I was upgrading today, (and doing a clean install).

    Turns out I didn't have the right version of .NET 6 installed.

    I glossed over the warning about .NET 6 at the top of https://our.umbraco.com/documentation/Fundamentals/Setup/Upgrading/version-specific because I thought I had the latest version installed already.

    Turns out I had 6.0.2 installed, but I needed 6.0.5.

    Downloaded the latest .NET 6 SDK, installed it, rebuilt, and everything went smooth.

  • Kevin 18 posts 121 karma points
    Jun 29, 2022 @ 07:57
    Kevin
    0

    Some more context

    • Site is fairly vanilla and doesn't use many packages
    • Update performed locally in VS
    • Database is hosted on Azure
    • Updated from 9.x to 9 latest - All fine
    • Updated from 9 latest to v10 - Above error
  • Dennis 75 posts 397 karma points MVP 2x
    Jun 29, 2022 @ 08:39
    Dennis
    0

    @Kevin @Thondar

    Did you check your user permissions on the database? Lack of permissions causes this error. Solution: give the user the more permissions on the database.

  • Kevin 18 posts 121 karma points
    Jul 01, 2022 @ 09:03
    Kevin
    0

    @Dennis, yes, DB permissions are fine. I'll double check .NET versions installed and see if that makes a difference per @James comment

  • Kevin 18 posts 121 karma points
    Jul 01, 2022 @ 09:57
    Kevin
    0

    Pleased to say, my error was also caused by the wrong .net sdk version. It was slightly below 6.0.300! It does mention it on the guidelines but is somehow still easy to miss!!

  • Steve Morgan 1348 posts 4457 karma points c-trib
    Dec 06, 2022 @ 06:30
    Steve Morgan
    0

    I also had to update Visual Studio from v17.1.5 up to the latest 17.4.2

    Though it might have just been a good restart that sorted my issues.

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