In 2021+ it uses the Newtonsoft.Json library to add Author and Dependency keys
- Add the following to your manifest.json under "dependencies":
"com.parkinglotgames.packagemanifesttool": "1.1.1",
- In Unity, go to Window > Package Manager > "+" button > "Add package from git URL..." and enter:
https://github.com/ParkingLotGames/Unity-Package-Manifest-Tool.git
"Assets/Create/Package Manifest" or Right click in Project view>"Create/Package Manifest" will open a window to save a new package manifest file. It will open the window to customize the values and in 2021+ the UI has the option to add dependencies and author information.
"Tools/Package Manifest Tool" will open the Tool window, you can load a package manifest file to edit