Photon pun 2 asset not working,Photon engine assets not working

This is my first time using photon engine and after connecting to it and importing all the photon assets everything seemed fine. but once I opened vs code and started writing code it didn’t seem to be working. So I opened the photon asset code and it was all red and doesn’t seem to be working. I tried re-importing it and created a new project I’m still having the same issue even before I write any code or do anything.
All I have done thus far is import the photon pun 2 assets and I got all these errors.,

did you solve this. facing same error