How-to fix Ja_News module’s auto-resize problem?

The problem During a long time I encountered this problem using the Joomla’s module JA_News. When I wanted to use the auto-resize functionality, a problem line appeared preventing me to use it in frontend. The warning said : Warning: imagejpeg() [function.imagejpeg]: Unable to open ‘www/images/resized/images/stories/path_to_image/image.jpg’ for writing: No such file or directory in www/modules/mod_janews/helper.php on line 138 Depending on your Janews module, the line in helper could be different. I searched across many forums without any concrete solutions. »