---
title: "Upgrading to Power Apps 6.0.820.x fails"
canonical: "https://support.appfire.com/space/PSJ/15483409/Upgrading%20to%20Power%20Apps%206.0.820.x%20fails"
format: markdown
---
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## Problem

> ℹ️ Power Apps versions 6.0.820.x are dependant on Java 11

## Additional Background

If you have installed or upgraded any addons from the Power Apps suite version 6.0.820.x before upgrading to Java 11, they will fail. 

> ❌ If you have Jira 8.20 installed, the Universal Plugin Manager will automatically install version 6.0.820.x when you click on the “upgrade” button, so upgrading may cause Power Apps addons to fail.

## Solution

Either [upgrade Jira to Java 11](https://confluence.atlassian.com/adminjiraserver/installing-java-938846828.html) or downgrade Power Apps to a version prior to 6.0.820.x. To downgrade Power Apps, follow these steps:

- Uninstall all Power Apps. In particular, uninstall:
  - Power Scripts
  - SIL Engine
  - Power Apps Licensing Manager (formerly Warden)
- Stop Jira
- Clear the plugin cache. Delete <JIRA_HOME>/plugins/.bundled-plugins and <JIRA_HOME>/plugins/.osgi-plugins (just these two folders)
- Manually remove any Power Apps with version 6.0.820.x found in <JIRA_HOME>/plugins directory. In particular, look for the following names:
  - power-scripts
  - katl-commons (SIL Engine)
  - warden (Power Apps License Manager)
- Restart JIRA.
- Download Power Apps from the Atlassian Marketplace.  
[https://marketplace.atlassian.com/apps/43318/power-scripts-jira-workflow-automation/version-history](https://marketplace.atlassian.com/apps/43318/power-scripts-jira-workflow-automation/version-history)   
[https://marketplace.atlassian.com/apps/373929/sil-engine-for-power-suite/version-history](https://marketplace.atlassian.com/apps/373929/sil-engine-for-power-suite/version-history)
- Install Power Apps manually in the following order:
  - SIL Engine (Power Apps Licensing Manager installs automatically).
  - Power Scripts
  - All other Power Apps

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