firebase-tools: Firebase serve return cannot find grpc_node.node module

exact same issue

sudo npm install -g grpc --allow-root --unsafe

allowed grpc to install

Hey everyone, I was having the same issue and I thought I would share how I fixed it. The main reason why it was throwing an error was the folder,node_modules/firebase-tools/node_modules/grpc/src/node, was missing. Running npm install -g firebase-tools, and even removing it before hand didn’t work. that /node folder in grpc was still missing.

I followed @stardotbmp suggestion and installed grpc as a global package by running their command. However, firebase wasn’t recognising it still. I went into the global firebase-tools instance, removed the grpc package, and replaced it with a symbolic link to the global grpc package.

The commands should be as follows:

sudo npm install -g firebase-tools

sudo npm install -g grpc --allow-root --unsafe

cd /path/to/global/node_modules/firebase-tools/node_modules

sudo rm -rf grpc

ln -s /path/to/node_modules/grpc/ /path/to/node_modules/firebase-tools/node_modules/grpc

cd /to/your/project/functions

firebase serve --only functions

None of these solutions seem to work - I have never really managed to get Firebase serve locally working… Maybe they should switch to local docker?

cd functions npm rebuild should do

+1

yarn global add grpc works for me.

My previous error message was:

! functions: Cannot start emulator. Error: Cannot find module 'C:\Users\[User]\AppData\Local\Yarn\config\global\node_modules\grpc\src\node\extension_binary\node-v48-win32-x64-unknown\grpc_node.node' and I use nvm @ https://github.com/coreybutler/nvm-windows and installed node 6.11.5

This worked form me (I reinstalled firebase tool and update the firebase-functions):- npm install -g firebase-tools npm install firebase-functions@latest --save