Jira is unable to enable The Scheduler app
Platform Notice: Data Center Only - This article only applies to Atlassian products on the Data Center platform.
Note that this KB was created for the Data Center version of the product. Data Center KBs for non-Data-Center-specific features may also work for Server versions of the product, however they have not been tested. Support for Server* products ended on February 15th 2024. If you are running a Server product, you can visit the Atlassian Server end of support announcement to review your migration options.
*Except Fisheye and Crucible
Summary
Jira is unable to enable the The Scheduler App.
Environment
Jira Server / Data Center
Diagnosis
The Scheduler App is at the latest version.
The Scheduler App shows compatible with Jira version
The pluginstate table does not show any false value nor any entry of this plugin on this table.
Even though, the The Scheduler Appis still unable to be enabled by Jira.
Looking at the logs you should some error similar to this:
1
ERROR [p.c.t.thescheduler.migration.LocalCloudMigrationAccessor] Failed to initialise CloudMigrationAccessor, most likely due to the fact Jira Cloud Migration Assistant plugin is not installed or enabled.1
2
2022-06-08 21:07:33,951-0700 ThreadPoolAsyncTaskExecutor::Thread 24 ERROR [p.c.t.thescheduler.migration.LocalCloudMigrationAccessor] Failed to initialise CloudMigrationAccessor, most likely due to the fact Jira Cloud Migration Assistant plugin is not installed or enabled.
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'com.atlassian.migration.app.tracker.CloudMigrationAccessor': Bean instantiation via constructor failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.atlassian.migration.app.tracker.CloudMigrationAccessor]: Constructor threw exception; nested exception is java.lang.NoClassDefFoundError: com/atlassian/migration/app/BaseAppCloudMigrationListenerCause
The Scheduler App has a dependency to another plugin Jira Cloud Migration Assistant. Due to this, if Jira Cloud Migration Assistant can't be started properly, it will cascade the problem to the other plugin The Scheduler since this last one has a dependency expected from the other.
Solution
Check if the version of the plugin Jira Cloud Migration Assistant is compatible with your version of Jira. You can confirm this at Jira Cloud Migration Assistant Version history.
Go to Administration > Manage Apps > Manage Apps
Uninstall the plugin The Scheduler
Upgrade or install the plugin Jira Cloud Migration Assistant
Go to Administration > Manage Apps > Find new apps > On the Search box type The Scheduler
Re-Install the plugin The Scheduler by clicking on the button Free trial
Check if the plugin is enabled and working. You may also apply the license afterwards.
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