Trello Import Fails

[Josh Polsky]

help! trying to migrate teams off trello using the importer;

Import fails, only some cards are imported and ranking is upside down :-(

///atlassian.net/rest/jira-importers-plugin/1.0/importer/com.atlassian.jira.plugins.jim-trello-plugin:TrelloImporterKey/log

2018-03-15 00:19:48,944 INFO - Import started by jpolsky using com.atlassian.jira.plugins.importer.trello.TrelloImporterDataBean
2018-03-15 00:19:49,586 INFO - ------------------------------
2018-03-15 00:19:49,586 INFO - Importing: Users
2018-03-15 00:19:49,586 INFO - ------------------------------
2018-03-15 00:19:49,586 INFO - Only new items will be imported
2018-03-15 00:19:51,023 INFO - 1 users associated with import. All of them imported as inactive, this can be changed after import in User Access step.
2018-03-15 00:19:51,023 INFO - ------------------------------
2018-03-15 00:19:51,023 INFO - Finished Importing : Users
2018-03-15 00:19:51,023 INFO - ------------------------------
2018-03-15 00:19:51,024 INFO - 0 users successfully created.
2018-03-15 00:19:51,027 INFO - Retrieving projects...
2018-03-15 00:19:52,573 INFO - Created Project: ExternalProject{id='5aa9bb424b133b6630a2b71d', key='ASH', externalName='Ashwin', name='Ashwin', type='business', template='com.atlassian.jira-core-project-templates:jira-core-task-management'} successfully
2018-03-15 00:19:53,280 INFO - ------------------------------
2018-03-15 00:19:53,280 INFO - Importing: Versions
2018-03-15 00:19:53,280 INFO - ------------------------------
2018-03-15 00:19:53,280 INFO - Only new items will be imported
2018-03-15 00:19:53,280 INFO - ------------------------------
2018-03-15 00:19:53,280 INFO - Finished Importing : Versions
2018-03-15 00:19:53,280 INFO - ------------------------------
2018-03-15 00:19:53,280 INFO - ------------------------------
2018-03-15 00:19:53,280 INFO - Importing: Components
2018-03-15 00:19:53,280 INFO - ------------------------------
2018-03-15 00:19:53,280 INFO - Only new items will be imported
2018-03-15 00:19:53,280 INFO - ------------------------------
2018-03-15 00:19:53,280 INFO - Finished Importing : Components
2018-03-15 00:19:53,280 INFO - ------------------------------
2018-03-15 00:19:53,289 INFO - Retrieving custom fields...
2018-03-15 00:19:53,298 INFO - ------------------------------
2018-03-15 00:19:53,298 INFO - Importing: Issues
2018-03-15 00:19:53,298 INFO - ------------------------------
2018-03-15 00:19:53,298 INFO - Only new items will be imported
2018-03-15 00:19:57,283 INFO - Importing issue: [externalId='5aa9bb424b133b6630a2b7be', summary='Int'l website - new markets follow up']
2018-03-15 00:19:57,302 INFO - Custom field not found. Creating a new custom field for com.atlassian.jira.plugins.importer.external.beans.ExternalCustomField@313f87d8[id=External issue ID,name=External issue ID,typeKey=com.atlassian.jira.plugin.system.customfieldtypes:textfield,searcherKey=com.atlassian.jira.plugin.system.customfieldtypes:exacttextsearcher,valueSet=<null>]
2018-03-15 00:19:57,836 INFO - Importing issue: [externalId='5aa9bb424b133b6630a2b7bf', summary='Slot ninja guide (SJ's idea)']
2018-03-15 00:19:58,164 INFO - Importing issue: [externalId='5aa9bb424b133b6630a2b7ba', summary='Crisis comms']
2018-03-15 00:19:58,427 INFO - Importing issue: [externalId='5aa9bb424b133b6630a2b7c0', summary='NYAJ: Google  vs. Promoted Results test']
2018-03-15 00:20:00,731 INFO - Importing issue: [externalId='5aa9bb424b133b6630a2b7b0', summary='Roadmap Communication (External)']
2018-03-15 00:20:02,257 INFO - Importing issue: [externalId='5aa9bb424b133b6630a2b79e', summary='Update name to camel case in GC Status dashboard']
2018-03-15 00:20:02,554 INFO - Importing issue: [externalId='5aa9bb424b133b6630a2b7b5', summary='Sync API documentation']
2018-03-15 00:20:02,848 INFO - Importing issue: [externalId='5aa9bb424b133b6630a2b765', summary='Measure PM NPS']
2018-03-15 00:20:03,317 INFO - Importing issue: [externalId='5aa9bb424b133b6630a2b75c', summary='Check on GuestCenter service mark with legal']
2018-03-15 00:20:03,588 INFO - Importing issue: [externalId='5aa9bb424b133b6630a2b762', summary='Add Scott to reporting email']
2018-03-15 00:20:03,975 INFO - Importing issue: [externalId='5aa9bb424b133b6630a2b7ca', summary='OTC collateral update']
2018-03-15 00:20:04,383 INFO - Importing issue: [externalId='5aa9bb424b133b6630a2b72b', summary='Review budget']
2018-03-15 00:20:05,855 INFO - Importing issue: [externalId='5aa9bb424b133b6630a2b759', summary='Add PMM perspective to GC portfolio document']
2018-03-15 00:20:06,902 INFO - Importing issue: [externalId='5aa9bb424b133b6630a2b75e', summary='Review GC hypotheses']
2018-03-15 00:20:08,664 INFO - Importing issue: [externalId='5aa9bb424b133b6630a2b7d2', summary='Collateral: All OT Marketing solutions']
2018-03-15 00:20:10,121 INFO - Importing issue: [externalId='5aa9bb424b133b6630a2b767', summary='URGENT: ERB Upgrade plan']
2018-03-15 00:20:10,842 INFO - Importing issue: [externalId='5aa9bb424b133b6630a2b75f', summary='Tell PMM story/wins internally']
2018-03-15 00:20:11,120 INFO - Importing issue: [externalId='5aa9bb424b133b6630a2b73f', summary='Rest. Marketing website']
2018-03-15 00:20:12,710 INFO - Importing issue: [externalId='5aa9bb424b133b6630a2b7c8', summary='Nick in Denver']
2018-03-15 00:20:13,129 INFO - Importing issue: [externalId='5aa9bb424b133b6630a2b79a', summary='Stats on the Table Cat. email campaign']
2018-03-15 00:20:13,563 INFO - Importing issue: [externalId='5aa9bb424b133b6630a2b7da', summary='Engagement reach preso during next week's working group meeting']
2018-03-15 00:20:13,827 INFO - Importing issue: [externalId='5aa9bb424b133b6630a2b761', summary='Do job req']
2018-03-15 00:20:14,638 INFO - Importing issue: [externalId='5aa9bb424b133b6630a2b75a', summary='Document field tests']
2018-03-15 00:20:15,435 INFO - Importing issue: [externalId='5aa9bb424b133b6630a2b7d5', summary='Call OTC users to follow up on Owner app email']
2018-03-15 00:20:15,692 INFO - Importing issue: [externalId='5aa9bb424b133b6630a2b7c5', summary='Vegas deck']
2018-03-15 00:20:15,975 INFO - Importing issue: [externalId='5aa9bb424b133b6630a2b7ac', summary='GC Awareness - redo math']
2018-03-15 00:20:16,261 INFO - Importing issue: [externalId='5aa9bb424b133b6630a2b799', summary='Add Table Cat. video on Upgrade Center']
2018-03-15 00:20:16,540 INFO - Importing issue: [externalId='5aa9bb424b133b6630a2b7d8', summary='GC Roadmap for Advisory Board meeting']
2018-03-15 00:20:16,795 INFO - Importing issue: [externalId='5aa9bb424b133b6630a2b7d0', summary='Pricing for acquisition > Dale to focus on Savannah's teams goals']
2018-03-15 00:20:17,067 INFO - Importing issue: [externalId='5aa9bb424b133b6630a2b760', summary='Provide data for UK Segmentation work']
2018-03-15 00:20:17,519 INFO - Importing issue: [externalId='5aa9bb424b133b6630a2b793', summary='=======Candidates =======']
2018-03-15 00:20:17,788 INFO - Importing issue: [externalId='5aa9bb424b133b6630a2b7d4', summary='2018 budget doc']
2018-03-15 00:20:17,791 INFO - ------------------------------
2018-03-15 00:20:17,791 INFO - Finished Importing : Issues
2018-03-15 00:20:17,791 INFO - ------------------------------
2018-03-15 00:20:17,792 ERROR - Unexpected failure occurred. Importer will stop immediately. Data may be in an unstable state: