2014-01-08 16:34:52,729 ERROR info.magnolia.module.InstallContextImpl           : > Error while installing or updating workflow module. Task 'Bootstrap new role' failed. (ItemExistsException: a node with uuid 4fd7ab63-7fff-4a27-b16a-ef727cc6a75d already exists!)
java.lang.RuntimeException: Error importing userroles.workflow-base: a node with uuid 4fd7ab63-7fff-4a27-b16a-ef727cc6a75d already exists!
	at info.magnolia.importexport.DataTransporter.importXmlStream(DataTransporter.java:407)
	at info.magnolia.importexport.DataTransporter.importXmlStream(DataTransporter.java:254)
	at info.magnolia.importexport.BootstrapUtil.bootstrap(BootstrapUtil.java:113)
	at info.magnolia.module.delta.BootstrapResourcesTask.execute(BootstrapResourcesTask.java:67)
	at info.magnolia.module.ModuleManagerImpl.applyDeltas(ModuleManagerImpl.java:512)
	at info.magnolia.module.ModuleManagerImpl.installOrUpdateModule(ModuleManagerImpl.java:494)
	at info.magnolia.module.ModuleManagerImpl$1.doExec(ModuleManagerImpl.java:277)
	at info.magnolia.context.MgnlContext$VoidOp.exec(MgnlContext.java:415)
	at info.magnolia.context.MgnlContext$VoidOp.exec(MgnlContext.java:412)
	at info.magnolia.context.MgnlContext.doInSystemContext(MgnlContext.java:386)
	at info.magnolia.module.ModuleManagerImpl.performInstallOrUpdate(ModuleManagerImpl.java:271)
	at info.magnolia.module.ui.ModuleManagerWebUI$2.run(ModuleManagerWebUI.java:127)
	at java.lang.Thread.run(Thread.java:695)
Caused by: javax.jcr.ItemExistsException: a node with uuid 4fd7ab63-7fff-4a27-b16a-ef727cc6a75d already exists!
	at org.apache.jackrabbit.core.xml.SysViewImportHandler.processNode(SysViewImportHandler.java:104)
	at org.apache.jackrabbit.core.xml.SysViewImportHandler.startElement(SysViewImportHandler.java:134)
	at org.apache.jackrabbit.core.xml.ImportHandler.startElement(ImportHandler.java:175)
	at org.xml.sax.helpers.XMLFilterImpl.startElement(XMLFilterImpl.java:527)
	at info.magnolia.importexport.filters.ImportXmlRootFilter.startElement(ImportXmlRootFilter.java:152)
	at org.xml.sax.helpers.XMLFilterImpl.startElement(XMLFilterImpl.java:527)
	at info.magnolia.importexport.filters.SkipNodeFilter.startElement(SkipNodeFilter.java:89)
	at org.xml.sax.helpers.XMLFilterImpl.startElement(XMLFilterImpl.java:527)
	at info.magnolia.importexport.filters.RemoveMixversionableFilter.startElement(RemoveMixversionableFilter.java:87)
	at org.xml.sax.helpers.XMLFilterImpl.startElement(XMLFilterImpl.java:527)
	at info.magnolia.importexport.filters.VersionFilter.startElement(VersionFilter.java:125)
	at org.xml.sax.helpers.XMLFilterImpl.startElement(XMLFilterImpl.java:527)
	at info.magnolia.importexport.filters.MagnoliaV2Filter.startElement(MagnoliaV2Filter.java:160)
	at org.apache.xerces.parsers.AbstractSAXParser.startElement(Unknown Source)
	at org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanStartElement(Unknown Source)
	at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source)
	at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
	at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
	at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
	at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
	at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
	at org.xml.sax.helpers.XMLFilterImpl.parse(XMLFilterImpl.java:333)
	at org.xml.sax.helpers.XMLFilterImpl.parse(XMLFilterImpl.java:333)
	at org.xml.sax.helpers.XMLFilterImpl.parse(XMLFilterImpl.java:333)
	at org.xml.sax.helpers.XMLFilterImpl.parse(XMLFilterImpl.java:333)
	at org.xml.sax.helpers.XMLFilterImpl.parse(XMLFilterImpl.java:333)
	at info.magnolia.importexport.DataTransporter.importXmlStream(DataTransporter.java:362)
	... 12 more
Caused by: javax.jcr.ItemExistsException: a node with uuid 4fd7ab63-7fff-4a27-b16a-ef727cc6a75d already exists!
	at org.apache.jackrabbit.core.xml.SessionImporter.resolveUUIDConflict(SessionImporter.java:230)
	at org.apache.jackrabbit.core.xml.SessionImporter.startNode(SessionImporter.java:408)
	at org.apache.jackrabbit.core.xml.SysViewImportHandler.processNode(SysViewImportHandler.java:93)
	... 38 more