We're having the same / similar problem with our installation.  We must keep LEGACY mode on for some of the other necessary components to work but it appears that the Magazine component will not work in legacy mode?

When trying to select the iJoomla Magazine component from the main Joomla navigation we're getting:

Fatal error: Cannot redeclare mosreaddirectory() (previously declared in /srv/xxxx.net/plugins/system/legacy/functions.php:277) in /srv/xxxx.net/administrator/components/com_magazine/magazine.class.php on line 441

Is this the same type of problem that is being referred to throughout this thread?

Any options to use iJoomla Magazine in Legacy mode?

Best Regards and Thanks!

ok, i know this is cheating 

lines 405 - 432 :

//function mosReadDirectory( $path, $filter='.', $recurse=false, $fullpath=false  ) {
//   $arr = array();
//   if (!@is_dir( $path )) {
//      return $arr;
//   }
//   $handle = opendir( $path );
//
//   while ($file = readdir($handle)) {
//      $dir = JPath::clean( $path.'/'.$file, false );
//      $isDir = is_dir( $dir );
//      if (($file != ".") && ($file != "..")) {
//         if (preg_match( "/$filter/", $file )) {
//            if ($fullpath) {
//               $arr[] = trim( mosPathName( $path.'/'.$file, false ) );
//            } else {
//               $arr[] = trim( $file );
//            }
//         }
//         if ($recurse && $isDir) {
//            $arr2 = mosReadDirectory( $dir, $filter, $recurse, $fullpath );
//            $arr = array_merge( $arr, $arr2 );
//         }
//      }
//   }
//   closedir($handle);
//   asort($arr);
//   return $arr;
//}


So far everything, everything I've tested, is working just fine...

No, iJoomla Magazine is working fine with legacy mode.