Does anyone know why Umbraco 10 is trying to create a

/wwwroot/html

directory? This is not listed as a directory that requires create permissions in the docs (https://docs.umbraco.com/umbraco-cms/v/10.latest-lts/fundamentals/setup/server-setup/permissions).

When is this happening? Can you share an error message?

Unhandled exception in AppDomain (terminating). System.UnauthorizedAccessException: Access to the path '/wwwroot/html' is denied. ---> System.IO.IOException: Permission denied --- End of inner exception stack trace --- at System.IO.FileSystem.CreateDirectory(String fullPath) at System.IO.Directory.CreateDirectory(String path) at Umbraco.Cms.Core.IO.IOHelper.EnsurePathExists(String path) at Umbraco.Cms.Core.Runtime.EssentialDirectoryCreator.Handle(UmbracoApplicationStartingNotification notification) at Umbraco.Cms.Core.Events.EventAggregator.PublishCore(IEnumerable`1 all Handlers, INotification notification) at Umbraco.Cms.Core.Events.NotificationHandlerWrapperImpl`1.Handle(INotification notification, ServiceFactory serviceFactory, Action`2 publish) at Umbraco.Cms.Core.Events.EventAggregator.PublishAsync[TNotification](TNotification notification, CancellationToken cancellationToken) at Umbraco.Cms.Infrastructure.Runtime.CoreRuntime.StartAsync(CancellationToken cancellationToken, Boolean isRestarting) at Umbraco.Cms.Infrastructure.Runtime.CoreRuntime.StartAsync(CancellationToken cancellationToken) at Microsoft.Extensions.Hosting.Internal.Host.StartAsync(CancellationToken cancellationToken) at Microsoft.Extensions.Hosting.HostingAbstractionsHostExtensions.RunAsync(IHost host, CancellationToken token) at Microsoft.Extensions.Hosting.HostingAbstractionsHostExtensions.RunAsync(IHost host, CancellationToken token) at Microsoft.Extensions.Hosting.HostingAbstractionsHostExtensions.Run(IHost host) at **.Program.Main(String[] args) in /**/Program.cs:line 6

Only running one 10 but don't have that directory. Any plugins?

Only uSync and Umbraco Forms. I also don't have this directory on any of the other environments running this exact application. The issue came up because we're strict with permissions and Umbraco stopped working when it tried to create this directory.

There's no code in Umbraco that tries to create an

html

directory, nor does Forms and I can't imagine uSync would either. Very weird.

Well, looking at the code, https://github.com/umbraco/Umbraco-CMS/blob/v10/dev/src/Umbraco.Core/Runtime/EssentialDirectoryCreator.cs The only thing that's not a known const (none of which include

html

) is

_globalSettings.UmbracoMediaPhysicalRootPath

Do you have anything set in your appsettings for

"UmbracoMediaPhysicalRootPath"

that would cause Umbraco to try and ensure a

html

directory in there?

yeah it's odd. It just started happening on one of our environments that had not been changed. We noticed because we're strict with the permissions. The error killed the app from starting though which was not ideal.

For posterity, was the problem a custom

UmbracoMediaPhysicalRootPath

?