$ npm i
node-pre-gyp WARN Tried to download(404): https://node-precompiled-binaries.grpc.io/grpc/v1.20.0/node-v72-darwin-x64-unknown.tar.gz
node-pre-gyp WARN Pre-built binaries not found for grpc@1.20.0 and node@12.10.0 (node-v72 ABI, unknown) (falling back to source compile with node-gyp)
...
../ext/channel.cc:292:56: error: too few arguments to function call, expected 2, have 1
int try_to_connect = (int)info[0]->Equals(Nan::True());
Fails to build grpc@1.20.0 (see https://github.com/grpc/grpc-node/issues/834)
Can we upgrade firebase?