text: import chalk from 'chalk';
  import detectPort from 'detect-port';
  
  (function CheckPortInUse() {
    const port = process.env.PORT || '1212';
  
    detectPort(Number(port), (err, availablePort) => {
      if (port !== String(availablePort)) {
        throw new Error(
          chalk.whiteBright.bgRed.bold(
            `Port "${port}" on "localhost" is already in use. Please use another port. ex: PORT=4343 yarn dev`
          )
        );
      } else {
        process.exit(0);
      }
    });
  })();
  