Problem 1: Build script returned non-zero exit code: 2

Solution

Example build command before the fix:

npm run build

Example build command after the fix:

CI= npm run build

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For Next JS

CI= next build

Problem 2: Netlify does not recognize the URL params when using react-router-dom

Solution

The solution is simple, add a file called _redirects to your public folder with this content

/* /index.html 200

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