SQL Developer not launching / W error Screenshots

Okay I'm a student in belgium. and i'm studying ICT.
We are learning pl SQL with Oracle. Last week we had to use SQL Devloper,
Now here comes my problem. I am pretty new at all this. But SQL developer doesn't launch at all!. I tried versions with and without JDK
That didn't help either. I recently completely formatted my computer and it still doesn't launch.
Now i found out that when you open the program in the "sqldeveloper\sqldeveloper\bin\sqldeveloper.exe" location you get to see a console or something.
Now when i open sqldeveloper.exe from that location a command line window pops up for like 1-2 seconds and then dissapears.
With a lot of trying to capture what came inside the cmd window i managed to take a screenshot of it.
The screenshot gave an error that has something to do with xml, but i have no idea how to fix it.
Screenshot URL: http://users.telenet.be/bl0empot/Capture2.PNG
Sorry for my bad english,
I'll be checking this thread hourly to answer additional questions!
Thanks in advance!

I solved the problem myself.
It seems that my user account "wh0emPah!" Bugged the java thingy.
Removing the exclamation in it solved all my problems lol.
Thanks anyways!

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Hello,
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825084 wrote:
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884559 wrote:
Have you fixed this issue?
i m having same problem,i tried so mamy things but i was not able to fix it,
so i uninstalled oracle and reinstalled it so it startd working fine,
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from sqlplus i m able to connect but not using any other 3rd party IDE.
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Hello people of the oracle forum community. After spending over an hour on the phone with techincal support, one of the nice people finally explained to me that they couldn't help me due to not having a contract and directed me here. So here I am... I am sure my question is fairly simple to solve yet I am not sure what it is.
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Welcome to the forum!
Whenever you post provide your platform OS and version and the sql developer version.
>
when I launched SQL Developer it keeps telling me to enter a valid Java.exe file to continue.
>
Sql develeper requires a Java SDK to run and for the latest version you should use Java 1.6.xx.
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>
Has anyone encountered this before and if so how do I proceed with loading my normal SQL files into developer?
>
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:55
Copyright (c) 1991, 2010, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1521)))
STATUS of the LISTENER
Alias                     LISTENER
Version                   TNSLSNR for 64-bit Windows: Version 11.2.0.1.0 - Produ
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Start Date                11-OCT-2013 10:18:43
Uptime                    0 days 12 hr. 41 min. 38 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   C:\Oracle\Bits\product\11.2.0\dbhome_1\network\admin\l
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Listener Log File         c:\oracle\bits\diag\tnslsnr\Bits-PC\listener\alert\log
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(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\EXTPROC1521ipc)))
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TNS Ping Utility for 64-bit Windows: Version 11.2.0.1.0 - Production on 11-OCT-2
013 23:04:28
Copyright (c) 1997, 2010, Oracle. All rights reserved.
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     at javax.swing.DefaultButtonModel.setPressed (DefaultButtonModel.java:242) [jre bootstrap, by jre.bootstrap:1.6.0_26]
     at javax.swing.AbstractButton.doClick (AbstractButton.java:357) [jre bootstrap, by jre.bootstrap:1.6.0_26]
     at javax.swing.plaf.basic.BasicMenuItemUI.doClick (BasicMenuItemUI.java:809) [jre bootstrap, by jre.bootstrap:1.6.0_26]
     at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased (BasicMenuItemUI.java:850) [jre bootstrap, by jre.bootstrap:1.6.0_26]
     at java.awt.Component.processMouseEvent (Component.java:6288) [jre bootstrap, by jre.bootstrap:1.6.0_26]
     at javax.swing.JComponent.processMouseEvent (JComponent.java:3267) [jre bootstrap, by jre.bootstrap:1.6.0_26]
     at java.awt.Component.processEvent (Component.java:6053) [jre bootstrap, by jre.bootstrap:1.6.0_26]
     at java.awt.Container.processEvent (Container.java:2041) [jre bootstrap, by jre.bootstrap:1.6.0_26]
     at java.awt.Component.dispatchEventImpl (Component.java:4651) [jre bootstrap, by jre.bootstrap:1.6.0_26]
     at java.awt.Container.dispatchEventImpl (Container.java:2099) [jre bootstrap, by jre.bootstrap:1.6.0_26]
     at java.awt.Component.dispatchEvent (Component.java:4481) [jre bootstrap, by jre.bootstrap:1.6.0_26]
     at java.awt.LightweightDispatcher.retargetMouseEvent (Container.java:4577) [jre bootstrap, by jre.bootstrap:1.6.0_26]
     at java.awt.LightweightDispatcher.processMouseEvent (Container.java:4238) [jre bootstrap, by jre.bootstrap:1.6.0_26]
     at java.awt.LightweightDispatcher.dispatchEvent (Container.java:4168) [jre bootstrap, by jre.bootstrap:1.6.0_26]
     at java.awt.Container.dispatchEventImpl (Container.java:2085) [jre bootstrap, by jre.bootstrap:1.6.0_26]
     at java.awt.Window.dispatchEventImpl (Window.java:2478) [jre bootstrap, by jre.bootstrap:1.6.0_26]
     at java.awt.Component.dispatchEvent (Component.java:4481) [jre bootstrap, by jre.bootstrap:1.6.0_26]
     at java.awt.EventQueue.dispatchEventImpl (EventQueue.java:643) [jre bootstrap, by jre.bootstrap:1.6.0_26]
     at java.awt.EventQueue.access$000 (EventQueue.java:84) [jre bootstrap, by jre.bootstrap:1.6.0_26]
     at java.awt.EventQueue$1.run (EventQueue.java:602) [jre bootstrap, by jre.bootstrap:1.6.0_26]
     at java.awt.EventQueue$1.run (EventQueue.java:600) [jre bootstrap, by jre.bootstrap:1.6.0_26]
     at java.security.AccessController.doPrivileged (Native method) [unknown, by unknown]
     at java.security.AccessControlContext$1.doIntersectionPrivilege (AccessControlContext.java:87) [jre bootstrap, by jre.bootstrap:1.6.0_26]
     at java.security.AccessControlContext$1.doIntersectionPrivilege (AccessControlContext.java:98) [jre bootstrap, by jre.bootstrap:1.6.0_26]
     at java.awt.EventQueue$2.run (EventQueue.java:616) [jre bootstrap, by jre.bootstrap:1.6.0_26]
     at java.awt.EventQueue$2.run (EventQueue.java:614) [jre bootstrap, by jre.bootstrap:1.6.0_26]
     at java.security.AccessController.doPrivileged (Native method) [unknown, by unknown]
     at java.security.AccessControlContext$1.doIntersectionPrivilege (AccessControlContext.java:87) [jre bootstrap, by jre.bootstrap:1.6.0_26]
     at java.awt.EventQueue.dispatchEvent (EventQueue.java:613) [jre bootstrap, by jre.bootstrap:1.6.0_26]
     at java.awt.EventDispatchThread.pumpOneEventForFilters (EventDispatchThread.java:269) [jre bootstrap, by jre.bootstrap:1.6.0_26]
     at java.awt.EventDispatchThread.pumpEventsForFilter (EventDispatchThread.java:184) [jre bootstrap, by jre.bootstrap:1.6.0_26]
     at java.awt.EventDispatchThread.pumpEventsForHierarchy (EventDispatchThread.java:174) [jre bootstrap, by jre.bootstrap:1.6.0_26]
     at java.awt.EventDispatchThread.pumpEvents (EventDispatchThread.java:169) [jre bootstrap, by jre.bootstrap:1.6.0_26]
     at java.awt.EventDispatchThread.pumpEvents (EventDispatchThread.java:161) [jre bootstrap, by jre.bootstrap:1.6.0_26]
     at java.awt.EventDispatchThread.run (EventDispatchThread.java:122) [jre bootstrap, by jre.bootstrap:1.6.0_26]

Hi,
The "Missing class: oracle.dbtools.raptor.export.ExportObjects" is used in 3.0 (found in oracle.sqldeveloper.jar) but not 3.1. Did you not remember to install 3.1 into an empty directory? That would also be the most likely reason for the issues you encountered in these other posts:
SQL Developer 3.1EA1 Connected Icon
SQL Developer 31EA1 SQL Worksheet not allowing entry
Regards,
Gary
SQL Developer Team

Oracle SQL developer 11g shows the error

While am trying to connect sql developer in 11g it shows like this
LSNRCTL> status
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1521)))
TNS-12541: TNS:no listener
TNS-12560: TNS:protocol adapter error
TNS-00511: No listener
*32-bit Windows Error: 2: No such file or directory*
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=SKS)(PORT=1521)))
TNS-12545: Connect failed because target host or object does not exist
TNS-12560: TNS:protocol adapter error
TNS-00515: Connect failed because target host or object does not exist
*32-bit Windows Error: 1001: Unknown error*
LSNRCTL>
Pls help me what to do?..Am new...

Welcome to the forum.
You can easily look up the error messages in the Oracle Online Documentation @ http://www.oracle.com/pls/db112/homepage
Just enter the error code, and you'll get the cause and action, for example:
TNS-12545: Connect failed because target host or object does not exist
Cause: The address specified is not valid, or the program being connected to does not exist.
Action: Ensure the ADDRESS parameters have been entered correctly; the most likely incorrect parameter is the node name. Ensure that the executable for the server exists (perhaps "oracle" is missing.) If the protocol is TCP/IP, edit the TNSNAMES.ORA file to change the host name to a numeric IP address and try again.
It looks like you'll have to edit your tnsnames.ora, and also check if your listener is running.

SQL Developer not launching / W error Screenshots

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