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Error Code "Hollyburn" - Confluence libraries could not be loaded

Problem

Confluence was upgraded to version 7.1.1 or higher and a warning appears in the Confluence admin:

In PocketQuery 3.12.0 we implemented a workaround for this issue, so the macros will work in spite of this problem. However, it is still important to follow the steps described below because this can affect the stability of your instance.

Before PocketQuery 3.12.0, the issue occurred with macros being unable to render with the following message:

Error rendering macro 'pocketquery'
org/springframework/jdbc/datasource/SingleConnectionDataSource

Solution

First of all, please note that your data is safe and there is no risk for data loss with any of the operations below. At any time, please don’t hesitate to raise a support ticket, describing the details of your Confluence (version, DC or Server, etc.) and your version of our app.

Approach 1

  • Flush all caches at "Confluence Admin > General Configuration > Cache Management" at the bottom of the page.

  • Check if the problem is solved.

Approach 2

  • Uninstall our app under "Confluence Admin > General Configuration > Manage Apps".

  • Flush all caches under "Confluence Admin > General Configuration > Cache Management" at the bottom of the page.

  • Reinstall our app.

  • Check if the problem is solved.

Approach 3

  • Uninstall our app under "Confluence Admin > General Configuration > Manage Apps".

  • Shut down Confluence.

  • Clear the Confluence plugin caches as described here.

  • Restart Confluence.

  • Reinstall our app.

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