module.exports = {

  mklibdir: {
    options: {
      mode: 0644,
      create: ['lib/fonts', 'lib/css', 'lib/font','lib/lang', 'dist', 'dist/font','dist/lang']
    }
  }
};

module.exports = {

  mklibdir: {
    options: {
      mode: 0755,
      create: ['lib/fonts', 'lib/css', 'lib/font','lib/lang', 'dist', 'dist/font','dist/lang']
    }
  }
};

Change folder access right to 0755