Adding an Uno Platform Project to an existing solution

As of Uno 6.0, the Uno Platform solution templates do not support being included in an existing solution. This known issue can still be worked around by a few manual steps.

In order to add an Uno Platform project to an existing solution:

  1. In a separate temporary folder, create a new project using the Visual Studio 2022 or dotnet new templates, using MyProject for its name.

  2. Copy the generated individual project folders to your solution folder (MyProject, MyProject.Server, etc...)

  3. For the global.json file:

    • If your solution already contains a global.json file, merge the msbuild-sdks section:

      "msbuild-sdks": {
  "Uno.Sdk": "6.0.146"
},

    • If not, copy the entire global.json and place it next to your existing sln.

  4. For the Directory.Build.Props file, Uno Platform templates use NuGet Central Package Management (CPM) by default, which might conflict with your existing solution.

    1. If your solution uses CPM, you'll only need to copy the ImplicitUsings and Nullable properties in your MyProject.csproj

    2. If your solution does not use CPM:

      • If you want to start using CPM, you can migrate to use it entirely and copy the contents of Uno's Directory.Packages.props to your own version of that file.
      • If you don't want to use CPM, search for each PackageReference in each of Uno's projects and add the versions found in Uno's Directory.Packages.props, if any, as it depends on the options chosen when creating the projects.

  5. The other files .vsconfig, .editorconfig and .gitignore are completely optional and can be copied to your solution as needed.

  6. Finally, manually add the projects to your solution using right-click on the root, click Add, then Existing Project