[Mediawiki-l] getThumbUrlFromCache could not write to thumb path

hi i'm trying configure $wgForeignFileRepos to see images of wikipedia on my local wiki. to do have configured to curl request: $wgHTTPTimeout = 3000; $wgHTTPProxy = "http://myProxyIp:Port"; and $wgForeignFileRepos[] = array(

'class' => 'ForeignAPIRepo',

'name' => 'shared', 'apibase' => 'http://commons.wikimedia.org/w/api.php', 'fetchDescription' => false, 'descriptionCacheExpiry' => 43200, 'apiThumbCacheExpiry' => 43200,

);;

now in my debug.log see many lines saying ForeignAPIRepo::getThumbUrlFromCache could not write to thumb path, in access.log of my proxy i see my mediawiki downloading the images in images/tumb have many folders as image name but are empty.

FileCache MISS for Commons-logo.svg Http::request: GET http://commons.wikimedia.org/w/api.php?titles=Image% 3ACommons-logo.svg&iiprop=url&iiurlwidth=15&iiurlheight=-1&prop=imageinfo&format=json&action=query ForeignAPIRepo::getThumbUrl got remote thumb http://upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/15... ForeignAPIRepo::getThumbUrlFromCache could not write to thumb path Http::request: GET http://commons.wikimedia.org/w/api.php?titles=Image%3AWikibooks-logo.svg&... FileCache MISS for Wikibooks-logo.svg Http::request: GET http://commons.wikimedia.org/w/api.php?titles=Image%3AWikibooks-logo.svg&... ForeignAPIRepo::getThumbUrl got remote thumb http://upload.wikimedia.org/wikipedia/commons/thumb/f/fa/Wikibooks-logo.svg/... ForeignAPIRepo::getThumbUrlFromCache could not write to thumb path)