# Designer Launch Error - Mac

**URL:** <https://forum.inductiveautomation.com/t/designer-launch-error-mac/77098>\
**Category:** General Discussion\
**Created:** [July 29, 2023, 9:31am UTC](https://forum.inductiveautomation.com/t/designer-launch-error-mac/77098 "2023-07-29T09:31:02Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Anthony\_Watts](https://avatars.discourse-cdn.com/v4/letter/a/5e9695/32.png) [@Anthony\_Watts](https://forum.inductiveautomation.com/u/Anthony_Watts)\
**Post date:** [July 29, 2023, 9:31am UTC](https://forum.inductiveautomation.com/t/designer-launch-error-mac/77098/1 "2023-07-29T09:31:02Z")

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Downloading of launchclient.jar failed, Launching will not occur

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**Author:** ![justinedwards.jle](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/justinedwards.jle/32/37854_2.png) [@justinedwards.jle](https://forum.inductiveautomation.com/u/justinedwards.jle)\
**Post date:** [July 29, 2023, 9:40am UTC](https://forum.inductiveautomation.com/t/designer-launch-error-mac/77098/2 "2023-07-29T09:40:16Z")

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Try this:

> [@When encountering the error "launch error occurred, downloading of launchclient.jar failed, launching will not occur" in the Ignition Designer Launcher on macOS system](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):
>
> 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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<div class="post-metadata">

**Author:** ![Anthony\_Watts](https://avatars.discourse-cdn.com/v4/letter/a/5e9695/32.png) [@Anthony\_Watts](https://forum.inductiveautomation.com/u/Anthony_Watts)\
**Post date:** [July 29, 2023, 9:55am UTC](https://forum.inductiveautomation.com/t/designer-launch-error-mac/77098/3 "2023-07-29T09:55:41Z")

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Thank you for your prompt support.  
The referenced solution worked for me.