Jira project import fails with strange exception

[Sergey Petrenko]

Project import finished with errors: There was a problem saving watcher 'watchername' for issue 'ISSUEID'.

in logs i can see only trace below.

What should i do? 

2019-07-03 15:52:34,252 JiraTaskExectionThread-3 INFO jira_admin 952x713x1 19hpnvx 10.0.6.6,172.18.0.3 /secure/admin/ProjectImportSummary.jspa [c.a.j.imports.project.DefaultProjectImportManager] Creating the issues.
2019-07-03 15:54:29,076 JiraTaskExectionThread-3 INFO jira_admin 952x713x1 19hpnvx 10.0.6.6,172.18.0.3 /secure/admin/ProjectImportSummary.jspa [c.a.j.imports.project.DefaultProjectImportManager] Finished creating the issues.
2019-07-03 15:54:29,163 JiraTaskExectionThread-3 INFO jira_admin 952x713x1 19hpnvx 10.0.6.6,172.18.0.3 /secure/admin/ProjectImportSummary.jspa [c.a.j.imports.project.DefaultProjectImportManager] Creating the issue-related data.
2019-07-03 15:56:29,938 JiraTaskExectionThread-3 ERROR jira_admin 952x713x1 19hpnvx 10.0.6.6,172.18.0.3 /secure/admin/ProjectImportSummary.jspa [c.a.j.imports.xml.DefaultBackupXmlParser] Unexpected import failure
com.atlassian.jira.imports.project.handler.AbortImportException
at com.atlassian.jira.imports.project.handler.AbstractPersisterHandler.execute(AbstractPersisterHandler.java:24)
at com.atlassian.jira.imports.project.handler.UserAssociationPersisterHandler.saveWatcher(UserAssociationPersisterHandler.java:68)
at com.atlassian.jira.imports.project.handler.UserAssociationPersisterHandler.handleEntity(UserAssociationPersisterHandler.java:60)
at com.atlassian.jira.imports.project.handler.ChainedOfBizSaxHandler.endTopLevelElement(ChainedOfBizSaxHandler.java:221)
at com.atlassian.jira.imports.project.handler.ChainedOfBizSaxHandler.endElement(ChainedOfBizSaxHandler.java:169)
at com.atlassian.jira.imports.project.handler.ChainedOfBizSaxHandler.endElement(ChainedOfBizSaxHandler.java:136)
at org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source)
at org.apache.xerces.parsers.AbstractXMLDocumentParser.emptyElement(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanStartElement(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
at org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source)
at com.atlassian.security.xml.RestrictedXMLReader.parse(RestrictedXMLReader.java:103)
at com.atlassian.jira.imports.xml.DefaultBackupXmlParser$XmlParser.parseXml(DefaultBackupXmlParser.java:115)
at com.atlassian.jira.imports.xml.DefaultBackupXmlParser.parse(DefaultBackupXmlParser.java:64)
at com.atlassian.jira.imports.xml.DefaultBackupXmlParser.parseXml(DefaultBackupXmlParser.java:52)
at com.atlassian.jira.imports.xml.DefaultBackupXmlParser.parseOfBizBackupXml(DefaultBackupXmlParser.java:41)
at com.atlassian.jira.imports.project.DefaultProjectImportManager.importIssueRelatedData(DefaultProjectImportManager.java:1042)
at com.atlassian.jira.imports.project.DefaultProjectImportManager.doImport(DefaultProjectImportManager.java:621)
at com.atlassian.jira.bc.imports.project.DefaultProjectImportService.doImport(DefaultProjectImportService.java:416)
at com.atlassian.jira.web.action.admin.importer.project.ProjectImportSummary$ProjectImportCallable.call(ProjectImportSummary.java:285)
at com.atlassian.jira.web.action.admin.importer.project.ProjectImportSummary$ProjectImportCallable.call(ProjectImportSummary.java:236)
at com.atlassian.jira.task.TaskManagerImpl$TaskCallableDecorator.call(TaskManagerImpl.java:458)
at com.atlassian.jira.task.TaskManagerImpl$TaskCallableDecorator.call(TaskManagerImpl.java:426)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at com.atlassian.jira.task.ForkedThreadExecutor$ForkedRunnableDecorator.run(ForkedThreadExecutor.java:216)
at java.lang.Thread.run(Thread.java:748)
2019-07-03 15:56:29,944 JiraTaskExectionThread-3 INFO jira_admin 952x713x1 19hpnvx 10.0.6.6,172.18.0.3 /secure/admin/ProjectImportSummary.jspa [c.a.j.imports.project.DefaultProjectImportManager] Re-indexing the Project.

[Samar Elsayed]

@Sergey Petrenko Hi

did you find an answer ?