# When encountering the error "launch error occurred, downloading of launchclient.jar failed, launching will not occur" in the Ignition Designer Launcher on macOS system

**URL:** <https://forum.inductiveautomation.com/t/when-encountering-the-error-launch-error-occurred-downloading-of-launchclient-jar-failed-launching-will-not-occur-in-the-ignition-designer-launcher-on-macos-system/75516>\
**Category:** Ignition\
**Created:** [June 26, 2023, 10:33am UTC](https://forum.inductiveautomation.com/t/when-encountering-the-error-launch-error-occurred-downloading-of-launchclient-jar-failed-launching-will-not-occur-in-the-ignition-designer-launcher-on-macos-system/75516 "2023-06-26T10:33:26Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![Jorge\_Fossi](https://avatars.discourse-cdn.com/v4/letter/j/edb3f5/32.png) [@Jorge\_Fossi](https://forum.inductiveautomation.com/u/Jorge_Fossi)\
**Post date:** [July 7, 2023, 8:16pm UTC](https://forum.inductiveautomation.com/t/when-encountering-the-error-launch-error-occurred-downloading-of-launchclient-jar-failed-launching-will-not-occur-in-the-ignition-designer-launcher-on-macos-system/75516/5 "2023-07-07T20:16:41Z")

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Found a solution!!

[How to Clear Client (.ignition) Cache and Java Cache – Inductive Automation Help Center](https://support.inductiveautomation.com/hc/en-us/articles/360047596071-How-to-Clear-Client-ignition-Cache-and-Java-Cache)

Follow

# 1. Clearing Client Cache

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