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Posted

After Googling the issue, I found that there is no real answer to my issue (from Metasploits end, anyway.). I recently had the msfgui crash on me. Now, when I try to bring it back up, I get this error...

__________________________________________________________________________________________________________________

Dec 15, 2012 8:08:21 AM org.jdesktop.application.Application$1 run

SEVERE: Application class msfgui.MsfguiApp failed to launch

java.lang.NullPointerException

at msfgui.MsfFrame.setLnF(MsfFrame.java:29)

at msfgui.MainFrame.<init>(MainFrame.java:49)

at msfgui.MsfguiApp.startup(MsfguiApp.java:126)

at org.jdesktop.application.Application$1.run(Application.java:171)

at java.awt.event.InvocationEvent.dispatch(Unknown Source)

at java.awt.EventQueue.dispatchEventImpl(Unknown Source)

at java.awt.EventQueue.access$000(Unknown Source)

at java.awt.EventQueue$3.run(Unknown Source)

at java.awt.EventQueue$3.run(Unknown Source)

at java.security.AccessController.doPrivileged(Native Method)

at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)

at java.awt.EventQueue.dispatchEvent(Unknown Source)

at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)

at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)

at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)

at java.awt.EventDispatchThread.pumpEvents(Unknown Source)

at java.awt.EventDispatchThread.pumpEvents(Unknown Source)

at java.awt.EventDispatchThread.run(Unknown Source)

Exception in thread "AWT-EventQueue-0" java.lang.Error: Application class msfgui.MsfguiApp failed to launch

at org.jdesktop.application.Application$1.run(Application.java:177)

at java.awt.event.InvocationEvent.dispatch(Unknown Source)

at java.awt.EventQueue.dispatchEventImpl(Unknown Source)

at java.awt.EventQueue.access$000(Unknown Source)

at java.awt.EventQueue$3.run(Unknown Source)

at java.awt.EventQueue$3.run(Unknown Source)

at java.security.AccessController.doPrivileged(Native Method)

at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)

at java.awt.EventQueue.dispatchEvent(Unknown Source)

at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)

at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)

at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)

at java.awt.EventDispatchThread.pumpEvents(Unknown Source)

at java.awt.EventDispatchThread.pumpEvents(Unknown Source)

at java.awt.EventDispatchThread.run(Unknown Source)

Caused by: java.lang.NullPointerException

at msfgui.MsfFrame.setLnF(MsfFrame.java:29)

at msfgui.MainFrame.<init>(MainFrame.java:49)

at msfgui.MsfguiApp.startup(MsfguiApp.java:126)

at org.jdesktop.application.Application$1.run(Application.java:171)

... 14 more

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I do not know what caused the issue (besides a Java event, of course). But, whenever I go to start the msfgui with sudo (~$sudo msfgui ), this error pops up every time. I deleted it and reinstalled it, but no change...

Any help would be appreciated!

Posted

What happens if you try msfconsole? Or install Armitage, if you want a metasploit GUI interface? Possible your metaploit is up to date, but your java is out of date? Just pullign straws, but try apt-get update and apt-get upgrade, see what happens.

Posted

... Armitage works... Which is surprising because my .yml wasn't configured. Must be the 4.5.0 update. I guess I will take Mudges version of the gui :lol: . Msfconsole is working too!

Oddly enough; the gui is still failing... strange brew, ey?

Posted

Possible an update broke something somewhere is my guess, or even the GUI had an update pushed that has a bug or something is even corrupt. personally I hate java, on anything, but In BackTrack, i use it in a VM mostly, so if it gets whacked, I can always revert to a snapshot. Native installs are a bitch to trouble shoot, and linux in general is still greek to me for the most part, so when things bork I either reinstall everything thats failing, or try work arounds, like Armitage.

Posted

Man, I had no clue that the native packages are so damned volatile. Are you saying that java not only tastes like shit, it updates like shit? jk... :)

Posted

My point was, with a VM, I can easily undo or revert back to prior to where things go whacky. With a native install, not so easy to revert or pinpoint where the problem is. If I am in a VM and I update something and then something else breaks, and I can revert, rinse, repeat, I can see where the problem is and what is causing it. With a native install, and no way to easily revert to a working state, good luck figuring it out. ;)

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