问题
The Cloud Functions emulator requires the module "firebase-admin" to be installed. This package is in your package.json, but it's not available. You probably need to run "npm install" in your functions directory.
I was running well my project till i was hit with that issue. Any help, please do tell. Thanks. {Below is the image of what i am getting}
回答1:
This is a bug in firebase-tools versions 6.9.0 and 6.9.1. The solution is to downgrade to 6.8.0 for now:
npm install -g firebase-tools@6.8.0
You can follow along with the issue here: https://github.com/firebase/firebase-tools/issues/1262
来源：https://stackoverflow.com/questions/56056244/im-having-trouble-while-serving-or-deploying-firebase-hosting-functions