Unable to install Jira Service Desk after upgrading to Jira Core 8.3.1

[Gyver Chang]

I get the following error when I try to install Jira Service Desk and Jira Software after upgrading to Jira Core 8.3.1.

"An unexpected error occurred. Refer to the logs for more information."

These are the logs from atlassian-jira.log related to the Service Desk install.

2019-08-07 07:39:24,102 UpmAsynchronousTaskManager:thread-2 INFO admin 458x339x1 1rngmax 10.84.1.123,10.84.1.11 /rest/plugins/1.0/ [c.a.plugin.loaders.ScanningPluginLoader] No plugins found to be installed
2019-08-07 07:39:24,156 UpmAsynchronousTaskManager:thread-2 INFO admin 458x339x1 1rngmax 10.84.1.123,10.84.1.11 /rest/plugins/1.0/ [c.a.plugin.manager.DefaultPluginManager] Updating plugin 'com.atlassian.servicedesk.application' from version '4.3.1' to version '4.3.1'
2019-08-07 07:39:24,165 UpmAsynchronousTaskManager:thread-2 INFO admin 458x339x1 1rngmax 10.84.1.123,10.84.1.11 /rest/plugins/1.0/ [c.a.plugin.loaders.ScanningPluginLoader] Removed plugin 'com.atlassian.servicedesk.application'
2019-08-07 07:39:25,384 UpmScheduler:thread-2 WARN admin [c.a.upm.pac.PacClientImpl] The request to check for add-on updates may take longer than expected because 202 user-installed add-ons are installed. This may impact the performance of loading the Manage Add-ons page.

Would appreciate some assistance getting this fixed. :)

[Gyver Chang]

Following the instructions on this page solved my issue:

https://community.atlassian.com/t5/Jira-Service-Desk-questions/Unexpected-error-when-installing-service-desk/qaq-p/707584