Cant enter to debug mode.

Hi.
I try enter to debug mode, but Unity get me error. ((

How to reply:

  1. Create new project
  2. Add com.unity.ui to Package Manager
  3. Click Switch to debug mode

Unity 2021.1.6.f1
UIToolkit 1.0.0-14

Just to be sure, when you say Switch to debug mode, you are talking about this option?
7244879--872690--upload_2021-6-16_15-32-20.png

I tried to do this locally by switching a few times, but cannot repro. You could try to delete your Library/ folder. Some files could need to reimport because of assembly override of the package after a version/package switch.

7244879--872687--upload_2021-6-16_15-31-48.png