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Try restarting your CLI first (in VS Code this means hitting the little trash can icon to the right of "powershell" and then going to "Terminal" on the top of your screen and clicking "New Terminal"). If that doesn't work, try
yarn installagain and then restart your CLI. If psql is the problem and restarting or the other commands don't work, try using "pgAdmin" instead. Finally, the path variables for that package may not have been set up correctly. For this, google the package name followed by "path variable" to find a solution (each package is slightly different). If you’re on Windows and yarn is not recognized as an internal or external command and you have already tried restarting your terminal, typenpm config get prefixand save the output. On the start search, type in ‘env’ and click on ‘Edit the system environment variables’. Click environment variables, edit the Path variable, and add the output you previously saved. Restart any open terminal and try using yarn again.
Node threw <insert any error here>! What should I do?
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