code: function validateDependencies(configDir) {
    const packageJsonPath = path.join(findup.sync(configDir, 'package.json'), 'package.json');
    const packageJson = require(packageJsonPath);
    DEPENDENCIES.forEach(validateDependency.bind(null, packageJson));
  }
docs: Validate project’s Babel and Webpack versions.
  
  @param {string} configDir Config file directory.