can not run studio in CentOS5.5

[zbc]

hello, i want to run openstudio of jasperETL on CentOS5.5, the following exception is thrown:

ERROR: Exception during Initialization
java.lang.NullPointerException
        at org.talend.designer.codegen.config.JetBean.getUri(Unknown Source)
        at org.talend.designer.codegen.config.JetBean.getTemplateFullUri(Unknown Source)
        at org.talend.designer.codegen.model.CodeGeneratorEmittersPoolFactory.loadEmfPersistentData(Unknown Source)
        at org.talend.designer.codegen.model.CodeGeneratorEmittersPoolFactory.initializeEmittersPool(Unknown Source)
        at org.talend.designer.codegen.model.CodeGeneratorEmittersPoolFactory.access$7(Unknown Source)
        at org.talend.designer.codegen.model.CodeGeneratorEmittersPoolFactory$JobRunnable.doRun(Unknown Source)
        at org.talend.designer.codegen.model.CodeGeneratorEmittersPoolFactory$JobRunnable.run(Unknown Source)
log4j:ERROR Plugin: org.talend.libraries not found in TOSAppender.
Exception in thread "Code generation background thread" java.lang.IllegalStateException: Workspace is closed.
        at org.eclipse.core.resources.ResourcesPlugin.getWorkspace(ResourcesPlugin.java:339)
        at org.talend.designer.codegen.model.CodeGeneratorEmittersPoolFactory$JobRunnable.doRun(Unknown Source)
        at org.talend.designer.codegen.model.CodeGeneratorEmittersPoolFactory$JobRunnable.run(Unknown Source)

but it works well on SUSE box, what is the problem? thanks for any helps.