Issues when the "Bitbucket Server - Comment Likes" system plugin is disabled
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
This page describes the issues that are observed when the Bitbucket Server - Comment Likes system plugin is disabled.
Diagnosis
Bitbucket versions <= 6.x
For Bitbucket versions 6.x and earlier, the "Like" link in pull request comments will not be shown if the system plugin is disabled.
Plugin is enabled - The "Like" link is visible
Plugin is disabled - The "Like" link is missing
Bitbucket versions >= 7.0 and < 7.7
In Bitbucket 7.0, pull requests got a makeover and the "Like" link was replaced with a "thumbs up" emoji.
If the system plugin is not enabled, clicking the thumbs up emoji will return a "Comment not found - The requested comment does not exist. It may have been deleted." message.
Analyzing the web request using browser developer tools will show that the request returned a 404 - Not Found response.
Corresponding server debug logs will show that the request failed to access a resource:
2021-08-24 12:14:19,675 DEBUG [http-nio-6764-exec-7] @A54UVx1334x211x0 el5yw0 127.0.0.1 "POST /mvc/error404 HTTP/1.1" c.a.s.i.web.ErrorPageController Page not found attempting to access [/b764/rest/comment-likes/latest/projects/PROJ/repos/repo764a/pull-requests/4/comments/44/likes]Bitbucket versions >= 7.7
Bitbucket 7.7 introduced comment reactions, which replaced the "thumbs up" emoji.
If the system plugin is not enabled, selecting an emoji reaction will return the error message, "An error occurred - Something went wrong while trying to serve your request. Try reloading the page."
Analysing the web request using browser developer tools will show that the PUT request returned a 405 - Method Not Allowed response.
There are no corresponding server debug logs for this request.
Cause
The system plugin may have been disabled by mistake or failed to get enabled during a restart.
Solution
To address the issues, enable the "Bitbucket Server - Comments Likes" system plugin (plugin key: com.atlassian.bitbucket.server.bitbucket-comment-likes)
Procedures
Log on as a system admin user
Go to Administration > Manage apps
Select "System" from the dropdown list in the "Manage apps" list to show the system plugins
Look for "Bitbucket Server - Comment Likes" and click the "Enable" button
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