WatermelonDB: npm install in react-native fails

Trying to install watermelon in a react-native project:

npm i @nozbe/watermelondb --save

Getting this error

code 128
npm ERR! Command failed: /usr/local/bin/git submodule update -q --init --recursive
npm ERR! fatal: No url found for submodule path 'original/LokiJS' in .gitmodules