anchor.diff:  
     BUILD_DIR.createSync();
     DIST_DIR.createSync();
  +
  +  _deSymlink(joinDir(Directory.current, ['web']), ignoreTop : true);
   }
   
   /**
  
positive.code:   }
  
    return name;
  }
  
  /**
  
negative.code:   // It needs to be copied to compile result directory.
    copyFile(
        joinFile(Directory.current, ['web', 'manifest.json']),
        joinDir(BUILD_DIR, ['web']));
  
    return version;
  }
  