I'm running into a version conflict issue with Umbraco CMS extensions in .NET 9 (Visual Studio 2026 Preview). Here's the setup: Created a custom NuGet package to extend Umbraco.CMS. The package directly references Umbraco.Cms.Web.BackOffice v13.11.0 (which depends on Umbraco.Cms.Web.Common v13.11.0). When building/packaging, I get this NU1608 warning: Detected package version outside of dependency constraint: Umbraco.Cms.Web.BackOffice 13.11.0 requires Umbraco.Cms.Web.Common (>= 13.11.0 && < 14.0.0) but version Umbraco.Cms.Web.Common 16.3.1 was resolved. The package builds fine, and I can install it into a fresh Umbraco site (created via dotnet new umbraco -n MyTestUmbracoSite). The real problem hits in the site's Program.cs when I try to use the extension: builder.CreateUmbracoBuilder() .AddBackOffice() .AddWebsite() .AddComposers() .Build(); .AddBackOffice() throws an ambiguous invocation error in VS (screenshot attached). It complains about multiple candidates like: AddBackOffice(this Umbraco.Cms.Core.DependencyInjection.IUmbracoBuilder, System.Action?) (from v13) And similar from v16. I suspect it's because the test site references Umbraco.Cms v16.3.1, which pulls in Umbraco.Cms.Web.Common v16.3.1 (via Umbraco.Cms.Imaging.ImageSharp v16.3.1), clashing with the v13.x from my package. Has anyone hit this kind of cross-version dependency issue with Umbraco extensions? Any fixes or workarounds? Thanks! btw.... this is my first extension so happy to have the obvious pointed out to me. https://cdn.discordapp.com/attachments/882984798719729704/1430293148243853372/image.png?ex=697bc44c&is=697a72cc&hm=db73eae8d0c9ae147dbff4a56b88fc6f53a6e093836cf6a16748960a638c07c2& https://cdn.discordapp.com/attachments/882984798719729704/1430293148671938762/image.png?ex=697bc44c&is=697a72cc&hm=4b14ad46a6d9418c559735c4731d738102511b1382ae45002015be78a0d0a71d& https://cdn.discordapp.com/attachments/882984798719729704/1430293148982186107/image.png?ex=697bc44c&is=697a72cc&hm=b22d5b0370608708a1887080fbe42fedfca5b59224f569481f75a801541e9d80& https://cdn.discordapp.com/attachments/882984798719729704/1430293149321920664/image.png?ex=697bc44c&is=697a72cc&hm=1a0ef4db5d38571f2ce9080058307e0f237db2ee048a2416864b2b8c288a596d&