“An unexpected error has occurred” after firebase deploy

Question

When I am hosting my web page through firebase hosting then after writing command firebase deploy I got the following error:

Microsoft Windows [Versi         


        

Answer 1

First of all, looking into firebase-debug.log in the root of your project (next to firebase.json) might help to define the error. In my case there was "Cannot read property 'deploys' of undefined" error. There's an associated issue on github. Removing extra sites (I didn't actually need them) and leaving only the default one in the Firebase hosting dashboard solved my problem.