Aide Feed The Beast sous Ubuntu

[pico7]

Bonjour, je suis sous Ubuntu 12.10 et je n'arrive pas à ouvrir FTB correctement .

Lorsque j’exécute : java -jar FTB_Launcher.jar
Il me répond :

[00:35:27] [INFO] LaunchFrame.main:132: FTBLaunch starting up (version 1.1.6)
[00:35:27] [INFO] LaunchFrame.main:133: Java version: 1.7.0_09
[00:35:27] [INFO] LaunchFrame.main:134: Java vendor: Oracle Corporation
[00:35:27] [INFO] LaunchFrame.main:135: Java home: /usr/lib/jvm/java-7-openjdk-amd64/jre
[00:35:27] [INFO] LaunchFrame.main:136: Java specification: Java Virtual Machine Specification version: 1.7 by Oracle Corporation
[00:35:27] [INFO] LaunchFrame.main:138: Java vm: OpenJDK 64-Bit Server VM version: 23.2-b09 by Oracle Corporation
[00:35:27] [INFO] LaunchFrame.main:139: OS: amd64 Linux 3.5.0-19-generic
[00:35:28] [INFO] LocaleUpdater.run:48: [i18n] Checking for updates ...
Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
at net.ftb.locale.I18N.setupLocale(I18N.java:72)
at net.ftb.gui.LaunchFrame$1.run(LaunchFrame.java:165)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:251)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:721)
at java.awt.EventQueue.access$200(EventQueue.java:103)
at java.awt.EventQueue$3.run(EventQueue.java:682)
at java.awt.EventQueue$3.run(EventQueue.java:680)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:691)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:244)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:163)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:151)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:147)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:139)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:97)
[00:35:28] [INFO] DownloadUtils.getStaticCreeperhostLink:77: http://www.creeperrepo.net/static/FTB2/locales
[00:35:28] [INFO] LocaleUpdater.run:63: [i18n] remoteVer = 9
[00:35:28] [INFO] LocaleUpdater.updateFiles:30: [i18n] Downloading locale files ...
[00:35:28] [INFO] DownloadUtils.getTime:132: http://www.creeperrepo.net/getdate
[00:35:28] [INFO] DownloadUtils.getCreeperhostLink:51: http://www.creeperrepo.net/direct/FTB2/f3c56bca0bfb7fc3934cd02df84567a1/locales.zip
[00:35:28] [INFO] LocaleUpdater.updateFiles:33: [i18n] Moving files into place ...
[00:35:28] [WARN] FileOutputStream.open:-2->LocaleUpdater.updateFiles:43: [i18n] Update IOException: java.io.FileNotFoundException: /home/felix/.ftblauncher/locale/version (Aucun fichier ou dossier de ce type)
java.io.FileOutputStream.open(Native Method)
java.io.FileOutputStream.<init>(FileOutputStream.java:212)
java.io.FileOutputStream.<init>(FileOutputStream.java:165)
java.io.FileWriter.<init>(FileWriter.java:90)
net.ftb.locale.LocaleUpdater.updateFiles(LocaleUpdater.java:38)
net.ftb.locale.LocaleUpdater.run(LocaleUpdater.java:89)
Aussi, dans le dossier /home/mon_nom/.ftblaucher/ il y a un fichier local.zip qui est régénéré a chaque fois que je lance FTB_Laucher.jar
Je tiens aussi à dire que j'ai cocher la case "Autorisez l'exécution du fichier comme un programme.".
Merci d'avance