
The error says "the type or namespace name 'Pun' does not exist in the namespace 'Photon' (are you missing an assembly reference?)".

The instant result of this is that there are all sorts of compilation errors showing up in VS Code relating to my multiplayer code interfacing with Photon. Stupidly, I took Microsoft's advice to update VS Code, and its version went to 1.50.1. The VS Code version was 1.48.3 - and everything was fine - no compile errors, all code working OK etc. The Unity version is 2019.3.14F1 - I know there are later, but I don't want to move forward just yet in case of 'unexpected problems'.

I am developing Unity game apps on a PC using C#, running Visual Studio Code as the editor.
