Please use this URL to download the JAR-file, which you can upload to your JIRA server via the "upload" button within Atlassian's Universal Plugin Manager:
It also works with https://marketplace.atlassian.com/download/plugins/de.polscheit.jira.plugins.gantt/version/2145120120925 having no dot and ">" at the end!
that information is not suitable for a qualified support:
If you send me a more detailed description of your problem at email@example.com, I can give you better help.
The error I got is in the question.
The Universal Plugin Manager (v2.7.3) by Atlassian
|Uptime||16 days, 7 hours, 7 minutes, 34 seconds|
|Build Date||Mon Jul 30 00:00:00 EDT 2012|
Hey Atlassian community, I help lead engineering at Sentry, an open-source error-tracking and monitoring tool that integrates with Jira. We started using Jira Software Cloud internally last year, a...
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