Could Not Load Custom Field Type Plugin with Key 'com.atlassian.jira.plugin.linker linker'
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
Symptoms
The following message appears in the logs:
1
Could not load custom field type plugin with key 'com.atlassian.jira.plugin.linker:linker'
They will also notice that any custom fields created before JIRA 4.0 of the type "URL Link Field" will no longer be visible in their JIRA instance.
Cause
Version 1.2 of the JIRA Linker Plugin inadvertently broke backwards compatibility with previous versions of the plugin. The plugin key was altered, which effectively rendered the existing custom field definitions unrecognisable by the new plugin.
Resolution
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