Issue Running Log In Firebase Tutorial

I am getting the error posted in the screenshot below when running my build from the log in tutorial. I am a bit lost as it was working great initially when I did it the other day but now it won’t build. The only thing I can think of that I did was shut down and restart my computer if that could affect it in anyway. Appreciate any help!

Screen Shot 2020-05-29 at 12.27.52 PM