In order to get all the node modules for your system. Do "npm install" within the folder
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download Node.js
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after installing nodejs run this command
npm install --global npm@6.4.1
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after you have followed the general getting started guide download Homebrew
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download CocoaPods (don't install with Homebrew) use
sudo gem install cocoapods -v 1.6.1
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install watchman
brew install watchman