How can I add a demo app target to a Swift Package?

Here are the steps that worked for me on Xcode 13/14/15-beta:

1. Create a package called MyLibrary

2. Create a new Project App MyLibraryDemo inside the package directory

3. Open the project’s .xcodeproj file

4. Go to PROJECT > MyLibraryDemo > Package Dependencies and press the ‘plus’ symbol

5. Press Add Local and select the directory containing your pacakge

6. Go to the app’s TARGET > General > Frameworks, Libraries and Embeded Content, and press ‘add’

7. Select your package from the list

8. Now you can import your MyLibrary package into your example app, and edit / update your package from within you demo project.

Some Notes:

1. If your package / demo has other dependencies, and those other dependencies get updated, you may have to clear DerivedData before doing an update

2. You may also have to close & re-open Xcode, especially if you’ve updated dependencies, but it still says “Cannot find package MyLibrary“