Bonjour j'utilise le logiciel processing et je dois installer dessus un outil qui s'apelle Gui Builder(g4p tool) mais quand j'essaye de l'ouvrir un message d'erreur s'affiche dans la console:
SVP aidez moi

"Exception in thread "AWT-EventQueue-0" java.lang.NoSuchMethodError: processing.app.Base.showWarning(Ljava/lang/String;Ljava/lang/String;Ljava/lang/Throwable;)V
at g4p.tool.G4PTool.run(Unknown Source)
at processing.app.contrib.ToolContribution.run(ToolContribution.java:97)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:666)
at java.awt.EventQueue.access$400(EventQueue.java:81)
at java.awt.EventQueue$2.run(EventQueue.java:627)
at java.awt.EventQueue$2.run(EventQueue.java:625)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:636)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:122) "