Installing a repository using the repository assistant -- Error

Hello,
I get an error when i try to install repository using the repository assistant. here is an image of what error I get:
http://myrmidonprocess.com/imageupload/images/error46249ed812cbc.png
This was in the log:
main.TaskScheduler timer[5]20070417@12:23:50.050: 00> oracle.wh.service.impl.assistant.DatabaseEngine.display(DatabaseEngine.java:391): [getConnection]: Trying to connect as USER SYS with jdbc:oracle:thin:@...
main.TaskScheduler timer[5]20070417@12:23:50.050: 00> oracle.wh.service.impl.assistant.DatabaseEngine.display(DatabaseEngine.java:391): [getConnection]: Switched from jdbc:oracle:thin:@ to jdbc:oracle:oci8:@
main.TaskScheduler timer[5]20070417@12:23:50.050: 00> oracle.wh.service.impl.assistant.DatabaseEngine.display(DatabaseEngine.java:391): [getConnection]: Throwable = java.sql.SQLException: Listener refused the connection with the following error:
main.TaskScheduler timer[5]20070417@12:23:50.050: 00> oracle.wh.service.impl.assistant.DatabaseEngine.display(DatabaseEngine.java:391)+>ORA-12514, TNS:listener does not currently know of service requested in connect descriptor
main.TaskScheduler timer[5]20070417@12:23:50.050: 00> oracle.wh.service.impl.assistant.DatabaseEngine.display(DatabaseEngine.java:391)+>The Connection descriptor used by the client was:
main.TaskScheduler timer[5]20070417@12:23:50.050: 00> oracle.wh.service.impl.assistant.DatabaseEngine.display(DatabaseEngine.java:391)+>(DESCRIPTION=(ADDRESS=(HOST=LOCALHOST)(PROTOCOL=tcp)(PORT=1521))(CONNECT_DATA=(SERVICE_NAME=ORACLESERVICEWHBUILDE)))
main.TaskScheduler timer[5]20070417@12:23:50.050: 00> oracle.wh.service.impl.assistant.RuntimeInstaller.display(RuntimeInstaller.java:816): parseSqlFile() ======= enter file: ../../reposasst/grantpriv.sql
main.TaskScheduler timer[5]20070417@12:23:50.050: 00> oracle.wh.service.impl.assistant.ProcessEngine.display(ProcessEngine.java:1409): fileName is ../../reposasst/grantpriv.sql
main.TaskScheduler timer[5]20070417@12:23:50.050: 00> oracle.wh.service.impl.assistant.RuntimeInstaller.runSqlScript(RuntimeInstaller.java:529): java.lang.NullPointerException
main.TaskScheduler timer[5]20070417@12:23:50.050: 00> oracle.wh.service.impl.assistant.RuntimeInstaller.runSqlScript(RuntimeInstaller.java:529)+>     at oracle.wh.service.impl.assistant.RuntimeInstaller.runSqlScript(RuntimeInstaller.java:520)
main.TaskScheduler timer[5]20070417@12:23:50.050: 00> oracle.wh.service.impl.assistant.RuntimeInstaller.runSqlScript(RuntimeInstaller.java:529)+>     at oracle.wh.service.impl.assistant.ProcessEngine.processSQLDBAToken(ProcessEngine.java:1136)
main.TaskScheduler timer[5]20070417@12:23:50.050: 00> oracle.wh.service.impl.assistant.RuntimeInstaller.runSqlScript(RuntimeInstaller.java:529)+>     at oracle.wh.service.impl.assistant.ProcessEngine.processFileTokens(ProcessEngine.java:573)
main.TaskScheduler timer[5]20070417@12:23:50.050: 00> oracle.wh.service.impl.assistant.RuntimeInstaller.runSqlScript(RuntimeInstaller.java:529)+>     at oracle.wh.service.impl.assistant.ProcessEngine.createOWBRepository(ProcessEngine.java:269)
main.TaskScheduler timer[5]20070417@12:23:50.050: 00> oracle.wh.service.impl.assistant.RuntimeInstaller.runSqlScript(RuntimeInstaller.java:529)+>     at oracle.wh.ui.install.assistant.wizards.AssistantWizardDefinition$4.runTask(AssistantWizardDefinition.java:541)
main.TaskScheduler timer[5]20070417@12:23:50.050: 00> oracle.wh.service.impl.assistant.RuntimeInstaller.runSqlScript(RuntimeInstaller.java:529)+>     at oracle.ewt.thread.TaskScheduler.runTask(Unknown Source)
main.TaskScheduler timer[5]20070417@12:23:50.050: 00> oracle.wh.service.impl.assistant.RuntimeInstaller.runSqlScript(RuntimeInstaller.java:529)+>     at oracle.ewt.thread.TaskScheduler.processTask(Unknown Source)
main.TaskScheduler timer[5]20070417@12:23:50.050: 00> oracle.wh.service.impl.assistant.RuntimeInstaller.runSqlScript(RuntimeInstaller.java:529)+>     at oracle.ewt.thread.TaskScheduler$TaskQueue.run(Unknown Source)
main.TaskScheduler timer[5]20070417@12:23:50.050: 00> oracle.wh.service.impl.assistant.RuntimeInstaller.runSqlScript(RuntimeInstaller.java:529)+>     at oracle.ewt.timer.Timer.doRun(Unknown Source)
main.TaskScheduler timer[5]20070417@12:23:50.050: 00> oracle.wh.service.impl.assistant.RuntimeInstaller.runSqlScript(RuntimeInstaller.java:529)+>     at oracle.ewt.timer.Timer.run(Unknown Source)
main.TaskScheduler timer[5]20070417@12:23:50.050: 00> oracle.wh.service.impl.assistant.RuntimeInstaller.runSqlScript(RuntimeInstaller.java:529)+>     at java.lang.Thread.run(Thread.java:534)
main.TaskScheduler timer[5]20070417@12:23:50.050: 00> oracle.wh.service.impl.assistant.ProcessEngine.processSQLDBAToken(ProcessEngine.java:1140): java.lang.NullPointerException
main.TaskScheduler timer[5]20070417@12:23:50.050: 00> oracle.wh.service.impl.assistant.ProcessEngine.processSQLDBAToken(ProcessEngine.java:1140)+>     at oracle.wh.service.impl.assistant.RuntimeInstaller.runSqlScript(RuntimeInstaller.java:520)
main.TaskScheduler timer[5]20070417@12:23:50.050: 00> oracle.wh.service.impl.assistant.ProcessEngine.processSQLDBAToken(ProcessEngine.java:1140)+>     at oracle.wh.service.impl.assistant.ProcessEngine.processSQLDBAToken(ProcessEngine.java:1136)
main.TaskScheduler timer[5]20070417@12:23:50.050: 00> oracle.wh.service.impl.assistant.ProcessEngine.processSQLDBAToken(ProcessEngine.java:1140)+>     at oracle.wh.service.impl.assistant.ProcessEngine.processFileTokens(ProcessEngine.java:573)
main.TaskScheduler timer[5]20070417@12:23:50.050: 00> oracle.wh.service.impl.assistant.ProcessEngine.processSQLDBAToken(ProcessEngine.java:1140)+>     at oracle.wh.service.impl.assistant.ProcessEngine.createOWBRepository(ProcessEngine.java:269)
main.TaskScheduler timer[5]20070417@12:23:50.050: 00> oracle.wh.service.impl.assistant.ProcessEngine.processSQLDBAToken(ProcessEngine.java:1140)+>     at oracle.wh.ui.install.assistant.wizards.AssistantWizardDefinition$4.runTask(AssistantWizardDefinition.java:541)
main.TaskScheduler timer[5]20070417@12:23:50.050: 00> oracle.wh.service.impl.assistant.ProcessEngine.processSQLDBAToken(ProcessEngine.java:1140)+>     at oracle.ewt.thread.TaskScheduler.runTask(Unknown Source)
main.TaskScheduler timer[5]20070417@12:23:50.050: 00> oracle.wh.service.impl.assistant.ProcessEngine.processSQLDBAToken(ProcessEngine.java:1140)+>     at oracle.ewt.thread.TaskScheduler.processTask(Unknown Source)
main.TaskScheduler timer[5]20070417@12:23:50.050: 00> oracle.wh.service.impl.assistant.ProcessEngine.processSQLDBAToken(ProcessEngine.java:1140)+>     at oracle.ewt.thread.TaskScheduler$TaskQueue.run(Unknown Source)
main.TaskScheduler timer[5]20070417@12:23:50.050: 00> oracle.wh.service.impl.assistant.ProcessEngine.processSQLDBAToken(ProcessEngine.java:1140)+>     at oracle.ewt.timer.Timer.doRun(Unknown Source)
main.TaskScheduler timer[5]20070417@12:23:50.050: 00> oracle.wh.service.impl.assistant.ProcessEngine.processSQLDBAToken(ProcessEngine.java:1140)+>     at oracle.ewt.timer.Timer.run(Unknown Source)
main.TaskScheduler timer[5]20070417@12:23:50.050: 00> oracle.wh.service.impl.assistant.ProcessEngine.processSQLDBAToken(ProcessEngine.java:1140)+>     at java.lang.Thread.run(Thread.java:534)
main.TaskScheduler timer[5]20070417@12:23:50.050: 00> oracle.wh.service.impl.assistant.ProcessEngine.display(ProcessEngine.java:1409): Throwable = Exception occured in 'processSQLDBAToken'(../../reposasst/grantpriv.sql): java.lang.NullPointerException
main.TaskScheduler timer[5]20070417@12:23:50.050: 00> oracle.wh.ui.install.assistant.wizards.AssistantWizardDefinition.display(AssistantWizardDefinition.java:823): [executeOwbReposOrRuntime_advanced]: Error occurred during installation. Exception =java.lang.Exception: Exception occured in 'processSQLDBAToken'(../../reposasst/grantpriv.sql): java.lang.NullPointerException
main.TaskScheduler timer[5]20070417@12:23:50.050: 00> oracle.wh.ui.install.assistant.wizards.AssistantWizardDefinition$4.runTask(AssistantWizardDefinition.java:579): java.lang.Exception: Exception occured in 'processSQLDBAToken'(../../reposasst/grantpriv.sql): java.lang.NullPointerException
main.TaskScheduler timer[5]20070417@12:23:50.050: 00> oracle.wh.ui.install.assistant.wizards.AssistantWizardDefinition$4.runTask(AssistantWizardDefinition.java:579)+>     at oracle.wh.service.impl.assistant.ProcessEngine.processSQLDBAToken(ProcessEngine.java:1144)
main.TaskScheduler timer[5]20070417@12:23:50.050: 00> oracle.wh.ui.install.assistant.wizards.AssistantWizardDefinition$4.runTask(AssistantWizardDefinition.java:579)+>     at oracle.wh.service.impl.assistant.ProcessEngine.processFileTokens(ProcessEngine.java:573)
main.TaskScheduler timer[5]20070417@12:23:50.050: 00> oracle.wh.ui.install.assistant.wizards.AssistantWizardDefinition$4.runTask(AssistantWizardDefinition.java:579)+>     at oracle.wh.service.impl.assistant.ProcessEngine.createOWBRepository(ProcessEngine.java:269)
main.TaskScheduler timer[5]20070417@12:23:50.050: 00> oracle.wh.ui.install.assistant.wizards.AssistantWizardDefinition$4.runTask(AssistantWizardDefinition.java:579)+>     at oracle.wh.ui.install.assistant.wizards.AssistantWizardDefinition$4.runTask(AssistantWizardDefinition.java:541)
main.TaskScheduler timer[5]20070417@12:23:50.050: 00> oracle.wh.ui.install.assistant.wizards.AssistantWizardDefinition$4.runTask(AssistantWizardDefinition.java:579)+>     at oracle.ewt.thread.TaskScheduler.runTask(Unknown Source)
main.TaskScheduler timer[5]20070417@12:23:50.050: 00> oracle.wh.ui.install.assistant.wizards.AssistantWizardDefinition$4.runTask(AssistantWizardDefinition.java:579)+>     at oracle.ewt.thread.TaskScheduler.processTask(Unknown Source)
main.TaskScheduler timer[5]20070417@12:23:50.050: 00> oracle.wh.ui.install.assistant.wizards.AssistantWizardDefinition$4.runTask(AssistantWizardDefinition.java:579)+>     at oracle.ewt.thread.TaskScheduler$TaskQueue.run(Unknown Source)
main.TaskScheduler timer[5]20070417@12:23:50.050: 00> oracle.wh.ui.install.assistant.wizards.AssistantWizardDefinition$4.runTask(AssistantWizardDefinition.java:579)+>     at oracle.ewt.timer.Timer.doRun(Unknown Source)
main.TaskScheduler timer[5]20070417@12:23:50.050: 00> oracle.wh.ui.install.assistant.wizards.AssistantWizardDefinition$4.runTask(AssistantWizardDefinition.java:579)+>     at oracle.ewt.timer.Timer.run(Unknown Source)
main.TaskScheduler timer[5]20070417@12:23:50.050: 00> oracle.wh.ui.install.assistant.wizards.AssistantWizardDefinition$4.runTask(AssistantWizardDefinition.java:579)+>     at java.lang.Thread.run(Thread.java:534)
main.AWT-EventQueue-0[6]20070417@12:23:50.050: 00> oracle.wh.ui.jcommon.WhButton@1e22c75: WhButton setLabel rtsString = OK
main.AWT-EventQueue-0[6]20070417@12:23:52.052: 00> oracle.wh.ui.install.assistant.wizards.AssistantWizardDefinition.display(AssistantWizardDefinition.java:823): Open UnSuccessDialog ...
main.AWT-EventQueue-0[6]20070417@12:23:52.052: 00> oracle.wh.ui.jcommon.WhButton@1e22c75: WhButton setLabel rtsString = OK
Regards,
Dennis

Hi,
the log has this error -
ORA-12514, TNS:listener does not currently know of service requested in connect descriptor
so, first check the connection parameter you have passed, if they are correct check whether the database is up and running....
HTH
Mahesh

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