Unity Package Manager package status.
| Unknown | The status of the package is unknown. |
| Unavailable | The package or one of its dependencies cannot be found on the local file system. |
| InProgress | The package is being transferred into the local file system. |
| Error | An error occurred while transfering the package or one of its dependencies to the local file system. |
| Available | The package and its dependencies are available on the local file system. |