How to fix 'Node Sass could not find a binding in your current env.' when running npm run build

This is due to a mismatch between the version of node used in your project and what you have globally installed.

Review the version of node indicated in your project's package.json
Change the version to the desired version of node
Clear the project's node_modules folder by doing npm clean-install within your project directory
Issue npm install to install all packages again
Use: node -v to determine which version of node you have active. If the version outputted matches the version you set in the project your npm run build command will work. If they don't match you will either have to install the matching version of node or if you are using nvm use the: nvm use <version> to active the matching version.

try the command: sudo npm install --save-dev --unsafe-perm node-sass

it works for me

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