I assumed all developers have experienced this one moment at least once in their career. You know, that moment when you misplaced a single word in code and everything just breaks or doesn’t work? No? Well I’m part of that wonderful dataset then and I think it’s a perfectly normal mistake at 1 AM in the morning.
After installing Yarn (a nice little package manager) without issues. I decided to try out expo-cli which helps simplify the process of starting a project in React Native quickly for mobile. I decided I would install it globally, so that I can access it everywhere from the terminal on my machine.
First I tried:
yarn add global expo-cli
Guess what this did? Exactly what I didn’t want. See the Note part.
TLDR: It added package names called global and expo-cli locally in the current directory, instead of installing
expo-cli in a global environment.
Turns out the proper command was:
yarn global add expo-cli
Wonderful. Looking back at this right as I’m writing this down now, I would have loved to have that flag like a npm
--global flag. Basically any other command line with dashes, like
--version to make it more obvious. Oh well.