I've created a new 3D Core project with Unity 2021.2.7f1. I added Home Designed 2.0.9 .
First, I am receiving an error "Importing a complete project will overwrite your project settings..." I choose to import since it is a new project.
After the package installation I have 26 warnings and 63 errors. After I press clear button 23 errors remain.
See below:

Assets\Exoa\Commons\Scripts\Controllers\FadeMaterialsOnKey.cs(1,7): error CS0246: The type or namespace name 'DG' could not be found (are you missing a using directive or an assembly reference?)

Assets\Exoa\Commons\Scripts\Controllers\PostProcessController.cs(1,7): error CS0246: The type or namespace name 'DG' could not be found (are you missing a using directive or an assembly reference?)

Assets\Exoa\Commons\Scripts\UI\BaseStaticPopup.cs(1,7): error CS0246: The type or namespace name 'DG' could not be found (are you missing a using directive or an assembly reference?)

Assets\Exoa\Commons\Scripts\UI\ModuleMenuController.cs(1,7): error CS0246: The type or namespace name 'DG' could not be found (are you missing a using directive or an assembly reference?)

Assets\Exoa\Commons\UI\GenericLeftMenu.cs(1,7): error CS0246: The type or namespace name 'DG' could not be found (are you missing a using directive or an assembly reference?)

Assets\Exoa\Commons\UI\UISaving.cs(1,7): error CS0246: The type or namespace name 'DG' could not be found (are you missing a using directive or an assembly reference?)

Assets\Exoa\TouchCameraPro\Scripts\Camera\CameraBase.cs(1,7): error CS0246: The type or namespace name 'DG' could not be found (are you missing a using directive or an assembly reference?)

Assets\Exoa\TouchCameraPro\Scripts\Camera\CameraBase.cs(4,7): error CS0246: The type or namespace name 'Lean' could not be found (are you missing a using directive or an assembly reference?)

Assets\Exoa\TouchCameraPro\Scripts\Camera\CameraIsometricOrtho.cs(1,7): error CS0246: The type or namespace name 'DG' could not be found (are you missing a using directive or an assembly reference?)

Assets\Exoa\TouchCameraPro\Scripts\Camera\CameraIsometricOrtho.cs(3,7): error CS0246: The type or namespace name 'Lean' could not be found (are you missing a using directive or an assembly reference?)

Assets\Exoa\TouchCameraPro\Scripts\Camera\CameraModeSwitcher.cs(1,7): error CS0246: The type or namespace name 'DG' could not be found (are you missing a using directive or an assembly reference?)

Assets\Exoa\TouchCameraPro\Scripts\Camera\CameraPerspective.cs(1,7): error CS0246: The type or namespace name 'DG' could not be found (are you missing a using directive or an assembly reference?)

Assets\Exoa\TouchCameraPro\Scripts\Camera\CameraPerspective.cs(3,7): error CS0246: The type or namespace name 'Lean' could not be found (are you missing a using directive or an assembly reference?)

Assets\Exoa\TouchCameraPro\Scripts\Camera\CameraTopDownOrtho.cs(1,7): error CS0246: The type or namespace name 'DG' could not be found (are you missing a using directive or an assembly reference?)

Assets\Exoa\TouchCameraPro\Scripts\Camera\CameraTopDownOrtho.cs(3,7): error CS0246: The type or namespace name 'Lean' could not be found (are you missing a using directive or an assembly reference?)

Assets\Exoa\TouchCameraPro\Scripts\Input\Inputs.cs(1,7): error CS0246: The type or namespace name 'Lean' could not be found (are you missing a using directive or an assembly reference?)

Assets\Exoa\TouchCameraPro\Scripts\Camera\CameraBase.cs(12,19): error CS0246: The type or namespace name 'LeanScreenDepth' could not be found (are you missing a using directive or an assembly reference?)

Assets\Exoa\TouchCameraPro\Scripts\Camera\CameraBase.cs(215,16): error CS0246: The type or namespace name 'Ease' could not be found (are you missing a using directive or an assembly reference?)

Assets\Exoa\Commons\UI\GenericLeftMenu.cs(18,10): error CS0246: The type or namespace name 'Ease' could not be found (are you missing a using directive or an assembly reference?)

Assets\Exoa\TouchCameraPro\Scripts\Input\Inputs.cs(150,34): error CS0246: The type or namespace name 'LeanFinger' could not be found (are you missing a using directive or an assembly reference?)

Assets\Exoa\TouchCameraPro\Scripts\Input\Inputs.cs(101,23): error CS0246: The type or namespace name 'LeanFingerFilter' could not be found (are you missing a using directive or an assembly reference?)

Assets\Exoa\TouchCameraPro\Scripts\Input\Inputs.cs(102,23): error CS0246: The type or namespace name 'LeanFingerFilter' could not be found (are you missing a using directive or an assembly reference?)

Assets\Exoa\TouchCameraPro\Scripts\Input\Inputs.cs(103,23): error CS0246: The type or namespace name 'LeanScreenDepth' could not be found (are you missing a using directive or an assembly reference?)

What is the correct or easiest way to create a project (latest known working Unity version and a template)?
Any suggestions on how to resolve the errors?