谢谢。
使用emca时出现错误如下。怎么办?
$ emca
Oracle Enterprise Manager Version 2.2.0.0.0 - Configuration Assistant
Xlib: connection to ":0.0" refused by server
Xlib: Invalid MIT-MAGIC-COOKIE-1 key
java.lang.NullPointerException
at oracle.ewt.lwAWT.BufferedFrame._init(Unknown Source)
at oracle.ewt.lwAWT.BufferedFrame.(Unknown Source)
at oracle.sysman.vto.VtoWizardFrame.(VtoWizardFrame.java:145)
at oracle.sysman.vto.VtoWizardApplication.(VtoWizardApplication.ja
va:51)
at oracle.sysman.vto.VtoWizardApplication.(VtoWizardApplication.ja
va:46)
at oracle.sysman.vte.repmgr.RepositoryMgrApp.(RepositoryMgrApp.jav
a:179)
at oracle.sysman.vte.repmgr.RepositoryMgrApp.main(RepositoryMgrApp.java:
105)