Atlassian Cloud Migration does not start

[DELIFE Admin]

Hello Community,

we want to move our Confluence to the Atlassian Cloud.
But unfortunately the migration tool does not launch.

I have already tried these steps:

https://confluence.atlassian.com/confkb/restore-the-cloud-migration-assistant-for-confluence-to-the-default-version-974378747.html

Confluence runs on MySQL.

Error Log:

Cause

org.apache.velocity.exception.MethodInvocationException: Invocation of method 'getInitialState' in class com.atlassian.migration.agent.web.AppAction threw exception com.atlassian.util.concurrent.LazyReference$InitializationException: java.lang.ClassCastException: class java.time.LocalDateTime cannot be cast to class java.lang.String (java.time.LocalDateTime and java.lang.String are in module java.base of loader 'bootstrap') at /templates/app.vm[line 21, column 44]
    at org.apache.velocity.runtime.parser.node.ASTIdentifier.execute(ASTIdentifier.java:228)

caused by: com.atlassian.util.concurrent.LazyReference$InitializationException: java.lang.ClassCastException: class java.time.LocalDateTime cannot be cast to class java.lang.String (java.time.LocalDateTime and java.lang.String are in module java.base of loader 'bootstrap')
    at com.atlassian.util.concurrent.LazyReference.getInterruptibly(LazyReference.java:149)

caused by: java.lang.ClassCastException: class java.time.LocalDateTime cannot be cast to class java.lang.String (java.time.LocalDateTime and java.lang.String are in module java.base of loader 'bootstrap')
    at liquibase.changelog.StandardChangeLogHistoryService.getRanChangeSets(StandardChangeLogHistoryService.java:324)

Mit freundlichen Grüßen // Best regards

Andreas Hofrichter

[Pramodh M]

Hi @DELIFE Admin

Raise as Atlassian Support Ticket.

You will be provided with DB Command to reset the Tables associated with Tables used for migration.

Once you are through that you can perform the migration.

Thanks,
Pramodh

[Pramodh M]

FYI, Just found DB Command here, use this

https://confluence.atlassian.com/cloudkb/how-to-fix-plans-that-are-stuck-and-cannot-be-stopped-during-migration-in-confluence-cloud-migration-assistant-ccma-1095245292.html