Just recreating (rather then upgrading) my own little site to V13.0.1. It's running but for every page request (front end or back office) I get the following error in the dotnet console:- `[16:57:51 WRN] Error unprotecting the session cookie. System.Security.Cryptography.CryptographicException: The payload was invalid. For more information go to https://aka.ms/aspnet/dataprotectionwarning at Microsoft.AspNetCore.DataProtection.Managed.ManagedAuthenticatedEncryptor.Decrypt(ArraySegment`1 protectedPayload, ArraySegment`1 additionalAuthenticatedData) at Microsoft.AspNetCore.DataProtection.KeyManagement.KeyRingBasedDataProtector.UnprotectCore(Byte[] protectedData, Boolean allowOperationsOnRevokedKeys, UnprotectStatus& status) at Microsoft.AspNetCore.DataProtection.KeyManagement.KeyRingBasedDataProtector.Unprotect(Byte[] protectedData) at Microsoft.AspNetCore.Session.CookieProtection.Unprotect(IDataProtector protector, String protectedText, ILogger logger)` I'm running on Linux Mint with no TLS cert (cos it's too mind bending to sort out!). Do people see this on Windows too? Also the Umbraco log is filling up with "Error uprotecting the section cookie" Warnings and "Keep alive failed at ("http://localhost:1234/api/keepalive/ping") Errors, like over 1,000 of them in a couple of hours. This is on my dev machine, not a live site. Any advice appreciated.

Happy Monday! In the backoffice (v10) I have a block list editor with image rows. That image row has an Image Media Picker, with the alias "image". I would like to show the name of that image in the block list editor's label for that row. I have tried label values such as

Image: {{ image.name }}

and

Image: {{ image }}

but to no joy. Fields such as "caption" can be accessed happily though

{{ caption }}

, the problem arises because

image

is an Umbraco.MediaPicker3 and I'm trying to access the name of that specific piece of picked media (3). I have scoured @Joe Glombek 's EXCELLENT [blog post](https://joe.gl/ombek/blog/umbraco-angularjs-filter-cheat-sheet) but alas I am without results. Please do consider helping a boy out on a cold, autumnal Monday morning. TIA!

Hi - how can we fix this type of error from happening again in Umbraco 12? System.IO.IOException: The process cannot access the file 'C:\home\site\wwwroot\umbraco\Data\TEMP\NuCache\NuCache.Content.db' because it is being used by another process. Thanks

Hi all! I've been looking into locking issues in Umbraco and I've found a possible cause. From what I can tell

ScopeProvider

is a singleton that manages all scopes (across all requests/threads) and seems to expect them to dispose in order. To top it off,

Scope

throws when it disposes if its "child" scope hasn't been disposed of, meaning any locks are not released 💥. Happy to hear everyone's thoughts, particularly if you think I'm wrong and/or know more about this area of Umbraco than me . https://harrygordon.co.uk/blog/not-thread-safe-obviously/ Here's the relevant thread on Github: https://github.com/umbraco/Umbraco-CMS/issues/14195#issuecomment-2117072274

During our local development we keep seeing errors saying that the SQLite database is locked. We have yet to figure out what triggers this. Anyone know what could be causing this or what we could try to solve it? Excerpt from the error output:

[17:34:51 ERR] Exception (fb9b415c).
Microsoft.Data.Sqlite.SqliteException (0x80004005): SQLite Error 5: 'database is locked'.
   at Microsoft.Data.Sqlite.SqliteException.ThrowExceptionForRC(Int32 rc, sqlite3 db)
   at Microsoft.Data.Sqlite.SqliteDataReader.NextResult()
   at Microsoft.Data.Sqlite.SqliteCommand.ExecuteReader(CommandBehavior behavior)

The full console output from this error is attached. https://cdn.discordapp.com/attachments/1229093653243494420/1229093653331443822/message.txt?ex=662e6daa&is=661bf8aa&hm=86e492a87d45b892d906cb3c6c8b68b28ebe8380687f97a2552259db3dbdc559&

Up until now my instance of Umbraco only housed one website so to get the root node I would simply use the code: var context = _umbracoContextAccessor.GetRequiredUmbracoContext(); var site = context.Content.GetAtRoot().First(); But now I will be adding adtional sites to the instance which will be using the same doc types and templates as the existing site. So how can I get the correct root node for the site the user is visiting?

I am looking at using Umbraco for client projects (specifed by them) I followed the Visual studio install, ie instaklled the templates and started a new project I get the error: Microsoft.Data.SqlClient.SqlException: 'Invalid object name 'umbracoOpenIddictApplications'.' Latest VS, .net8, Umbraco 13.0.3 I tried restarting VS, restoring the packages and also needed to update connection string in appsettings.devleopment.json as that was different? Looked at the forums, they selection only goes to V8, so assume this is the priimary go-to for help?

How are people doing faceted search in new Umbraco projects? I've used Bobo before, but doesn't look like it's updated for net core.

I have a project migrated from Umbraco 8 to latest Umbraco 13 on Umbraco Cloud, where it has a single Nested Content datatype instance I want to replace with Block List instead. I came across this https://docs.umbraco.com/umbraco-deploy/v/12.deploy.latest/deployment-workflow/import-export

using Umbraco.Cms.Core.Composing;
using Umbraco.Deploy.Core.Migrators;
using Umbraco.Deploy.Infrastructure.Migrators;

internal class ArtifactMigratorsComposer : IComposer
{
    public void Compose(IUmbracoBuilder builder)
    {
        builder.DeployArtifactMigrators()
            .Append<ReplaceNestedContentDataTypeArtifactMigrator>();

        builder.DeployPropertyTypeMigrators()
            .Append<NestedContentPropertyTypeMigrator>();
    }
}

I tried adding the composer to the project and restarted the application, but the property and datatype still seems to use Nested Content. Anything else which need to be configured?

Hi, but of a big ask this one - but wondering if anyone can give me pointers on using Authentication with your own controllers and the new backoffice ? I have a (very nearly) working demo of a dashboard, using a context, and repository, and a datastore and a openapi generated resource to talk to a newly constructed API (using the management api structures, showing its own swagger) to get some simple info from the server (in my case here, time and date as strings). https://github.com/KevinJump/TimeDashboard/tree/master this works !! when the

[Authorize(Policy = "New" + AuthorizationPolicies.BackOfficeAccess)]

tag is removed from the controller (so it has no auth!). put it on, and the dashboard, does 'your session has expired' I have gone down the road of replicating some of the extra swagger stuff from the core, https://github.com/KevinJump/TimeDashboard/blob/master/TimeDashboard.Client/Configuration/ConfigureSwaggerGenOptions.cs (replacing the filters with ones that look for 'time' instead of 'management' for the API) but i suspect i am either missing something obvious, or this isn't the way to do this. anyone, any clues ? https://cdn.discordapp.com/attachments/1201903877721698395/1201903878304714783/image.png?ex=65cb8336&is=65b90e36&hm=61812c01435b7be7c7e3caf50ff9c27311838a80170d47d6158af10249b1c541&