Details on the error is listed below: (0,0): error System.IO.FileNotFoundException: with no other further descriptions. Things I've tried include closing the editor and restarting it, deleting mirror and reimporting, restarting my computer, importing mirror to a blank project. Outcome of restarting the editor: Initially, when I tried to add the Network Manager component, it does not appear in the list of options under "Add component". However I managed to add that component after restarting the editor. The error is still there though. Outcome of importing mirror to brand new project: No error found. What are the possible reasons for getting file not found error on my current project? What can I do to fix it? Thank you!