Unable to get Soft Mask to work - console fills with errors

[Gekkosaurus-Dev]

Describe the bug
Not able to use the soft mask. I get errors and cannot get it to work.
Looks like there is another thread related to the soft mask not working in unity version 2020? Could this be related?

To Reproduce
Steps to reproduce the behavior:

1. Use Unity Package Manager to add SoftMaskForUGUI via https://github.com/mob-sakai/SoftMaskForUGUI.git
2. Add a 2d circle sprite to the scene
3. Add Soft Mask component
4. Immediately the console is full of this error:
   

I do not know what other way that I should be adding the Soft Mask if this is incorrect?

Environment:

• Version: 1.0.2
• Platform:: Windows
• Unity version: 2022.1.8f1

[RunoLight]

Look into readme, there should be at least 2 objects, where parent has softmask and child has softmaskable components

[mob-sakai]

Sorry for my late reply.
This package provides a soft mask for UI. SpriteRenderer is not supported.