Try upgrading your libraries. It looks like @openmrs/react-components require "react": "^16.4.0", "react-dom": "^16.3.2" but you provided "react": "^15.4.1", 2. "react-dom": "^15.4.1",
Also, try to update the version of babel and webpack and make sure you webpack configuration uses the babel-loader.
Something similar to
ERROR in ./app/js/app1.jsx
Module build failed: TypeError: fileSystem.statSync is not a function
at module.exports (/home/andu033/Documents/test/node_modules/babel-loader/lib/utils/exists.js:7:25)
at find (/home/andu033/Documents/test/node_modules/babel-loader/lib/resolve-rc.js:13:9)
at Object.module.exports (/home/andu033/Documents/test/node_modules/babel-loader/lib/index.js:111:132)