Make sure you have installed node.js. If you have not, install it via https://nodejs.org/en/ (version 14.17.0 is good). Make sure you also cloned the project to your own computer.
Make sure you have installed node.js. If you have not, install it via https://nodejs.org/en/ (version 14.17.0 is good).
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When installed, follow the installation wizard to setup node.js. Install the npm (package manager), if asked.