From GitHub: https://github.com/Unity-Technologies/InputSystem/issues/355

Repro:
1. Download project and ISX package at: https://github.com/Unity-Technologies/InputSystem
2. Go to folder: Assets -> Demo -> SimpleDemo
3. Double click SimpleControls to open the Input Action UI.
4. In the middle section, find "move"
5. Under "move", right click on "leftStick [Gamepad]" and delete it.
6. Under the "Dpad" Composite binding, click on "up", and replace the "w" key binding with "leftStick/up [Gamepad]"
7. In the right section, add "Axis Deadzone" under Processors.
8. Select the "Axis Deadzone" just created and set the Min and Max value.
9. Click "Save Asset" on the top
10. Enter Playmode and push left stick up to move forward

Actual: Error generated in the Console window

(Error content in attached files)