Creating an optimized production build... Compiled with warnings. Failed to parse source map from '/home/circleci/react-spectrum/examples/rsp-cra-18/node_modules/@formatjs/fast-memoize/index.ts' file: Error: ENOENT: no such file or directory, open '/home/circleci/react-spectrum/examples/rsp-cra-18/node_modules/@formatjs/fast-memoize/index.ts' Search for the keywords to learn more about each warning. To ignore, add // eslint-disable-next-line to the line before. File sizes after gzip: 353.43 kB build/static/js/main.eb8f3757.js 82.2 kB build/static/css/main.b0078024.css The project was built assuming it is hosted at ./. You can control this with the homepage field in your package.json. The build folder is ready to be deployed. Find out more about deployment here: https://cra.link/deployment 4 build/favicon.ico 8 build/logo192.png 12 build/logo512.png 4 build/manifest.json 4 build/robots.txt 4 build/index.html 4 build/static/js/main.eb8f3757.js.LICENSE.txt 1340 build/static/js/main.eb8f3757.js 4788 build/static/js/main.eb8f3757.js.map 6132 build/static/js 956 build/static/css/main.b0078024.css 1512 build/static/css/main.b0078024.css.map 2468 build/static/css 8600 build/static 4 build/asset-manifest.json 8640 build/