eclipse 启动出错，达人帮忙阿

greenapplepark

以前我装eclipse的时候没问题的，就是解压缩以后再把jre放到eclipse的目录下就可以了

这次我先在机器上装了永中office，这是java写的，他默认装了一个jdk
然后我再装eclipse时还是和以前一样，然后运行的时候出现了这个问题，如下

!SESSION ??鏈 11, 2004 12:16:31.838 ----------------------------------------------
eclipse.buildId=I200406251208
java.version=1.5.0
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=linux, ARCH=x86, WS=gtk, NL=zh_CN

!ENTRY org.eclipse.osgi ??鏈 11, 2004 12:16:31.840
!MESSAGE Startup error
!STACK 1
java.lang.RuntimeException: Exception while creating System Bundle: Unable to find system bundle manifest file.
        at org.eclipse.osgi.framework.internal.core.Framework.createSystemBundle(Framework.java:253)
        at org.eclipse.osgi.framework.internal.core.Framework.initialize(Framework.java:152)
        at org.eclipse.osgi.framework.internal.core.Framework.<init>(Framework.java:95)
        at org.eclipse.osgi.framework.internal.core.OSGi.createFramework(OSGi.java:90)
        at org.eclipse.osgi.framework.internal.core.OSGi.<init>(OSGi.java:31)
        at org.eclipse.core.runtime.adaptor.EclipseStarter.startup(EclipseStarter.java:215)
        at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:127)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:585)
        at org.eclipse.core.launcher.Main.basicRun(Main.java:183)
        at org.eclipse.core.launcher.Main.run(Main.java:644)
        at org.eclipse.core.launcher.Main.main(Main.java:628)
!SESSION Mon Oct 11 12:16:31 HKT 2004 ------------------------------------------
!ENTRY org.eclipse.core.launcher 4 0 ??鏈 11, 2004 12:16:31.852
!MESSAGE Exception launching the Eclipse Platform:
!STACK
java.lang.NullPointerException
        at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:138)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:585)
        at org.eclipse.core.launcher.Main.basicRun(Main.java:183)
        at org.eclipse.core.launcher.Main.run(Main.java:644)
        at org.eclipse.core.launcher.Main.main(Main.java:628)

我以前在windows下也出现过这个问题，后来知道是由于装了多个jdk造成的
不知道这边是不是也是这个问题

哪位大虾知道怎么解决这个问题请赐教阿