When i opened my Project, i suddenly got a bunch of Errors in the log, i was able to fix most of them, but the errors for the InputSystem are saying that it's not recognized. i Have the InputSystem installed, The Input is set to Both new and old, and i already tried regenerating the project files
CodePudding user response：
On 2021.3.7 I installed the new Input system from the package manager, hit yes when it asks to restart the editor, came back in and it recognizes it. Try to revert all the settings you've done so far and do the same process. I've had my fair share of times it didn't recognize it too, it's clunky for sure.
CodePudding user response：
link. The above link is similar to your problem.
You can refer to the link:
Unity type or namespace name 'InputSystem' does not exist namespace 'UnityEngine'.
Hope it helps you.