# 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:** \ **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:** 9\ **Page:** 1
**Author:** ![Qiuhe\_Wang](https://avatars.discourse-cdn.com/v4/letter/q/c5a1d2/32.png) [@Qiuhe\_Wang](https://forum.inductiveautomation.com/u/Qiuhe_Wang)\ **Post date:** [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/75516/1 "2023-06-26T10:33:26Z")
How do you do？ ![Screenshot 2023-06-26 at 6.31.36 PM](https://us1.discourse-cdn.com/inductiveautomation/original/3X/3/7/3701008309eb723d004d36e1e931dddd86ff6f2e.png) ---
**Author:** ![ASF](https://avatars.discourse-cdn.com/v4/letter/a/c4cdca/32.png) [@ASF](https://forum.inductiveautomation.com/u/ASF)\ **Post date:** [July 2, 2023, 11:43pm 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/75516/2 "2023-07-02T23:43:44Z")
I'm encountering the same issue. Running Ignition Edge v8.1.28 on MacOS 11.7.6. This only occurs when trying to launch a designer session on the gateway itself; when launching from another Mac pointing to this gateway, it works fine (the other Mac is admittedly running a much newer version of MacOS; the gateway is on old hardware we dusted off from the cupboard because the production hardware is still several months away from delivery). I'm currently running in trial mode, if that's relevant. Another thing I'm not sure if is relevant, but on the gateway configuration page, Ignition Edge Panel is listed as "Available" rather than "Installed". Clicking on the Install button just redirects me to the modules page, so I'm assuming that it wants me to manually install it, but I can't see anywhere on the Ignition website where that specific module can be downloaded. Any idea on how to troubleshoot this further? I've tried reinstalling the gateway and the designer. ---
**Author:** ![batuhan.parlakay](https://avatars.discourse-cdn.com/v4/letter/b/22d042/32.png) [@batuhan.parlakay](https://forum.inductiveautomation.com/u/batuhan.parlakay)\ **Post date:** [July 4, 2023, 8:23am 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/75516/3 "2023-07-04T08:23:13Z")
Hi, Same error to me. Can anyone find a solution ? ---
**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 6, 2023, 12:49pm 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/75516/4 "2023-07-06T12:49:54Z")
Same Error over here. ---
**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")
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 ---
**Author:** ![ASF](https://avatars.discourse-cdn.com/v4/letter/a/c4cdca/32.png) [@ASF](https://forum.inductiveautomation.com/u/ASF)\ **Post date:** [July 9, 2023, 10:46pm 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/75516/6 "2023-07-09T22:46:11Z")
Thanks @Jorge_Fossi, that worked for me too ---
**Author:** ![DanB](https://avatars.discourse-cdn.com/v4/letter/d/f05b48/32.png) [@DanB](https://forum.inductiveautomation.com/u/DanB)\ **Post date:** [July 13, 2023, 6:47pm 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/75516/7 "2023-07-13T18:47:55Z")
That worked here as well for macOS Ventura 13.1 For TLDR people, close any clients and designers open, then open a terminal prompt and give the command: ``sudo rm -rf ~/.ignition` Type your user password and that should be it \*sudo was necessary here due to the permissions Ignition set to the folder ---
**Author:** ![mathieurleblanc33](https://avatars.discourse-cdn.com/v4/letter/m/e19adc/32.png) [@mathieurleblanc33](https://forum.inductiveautomation.com/u/mathieurleblanc33)\ **Post date:** [November 17, 2023, 11:11pm 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/75516/8 "2023-11-17T23:11:09Z")
Thank you! This issue happened to me as well running 8.1.33 and linux 6.5 kernel. (I had to manually update openjdk to 19), I had to launch designer using Sudo for it to launch the project designer, but i could not close the project designer. Changed the project designer folder permissions to 755, still no luck. I did the rm -rf ~/.ignition. This has corrected my issue. Now the project designer will launch without Sudo (do error on downloading clientlauncher), the project designer works as normal and after, you are able to close the application as normal. Much appreciated. ---
**Author:** ![BryanB](https://avatars.discourse-cdn.com/v4/letter/b/57b2e6/32.png) [@BryanB](https://forum.inductiveautomation.com/u/BryanB)\ **Post date:** [June 14, 2024, 12:37am 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/75516/9 "2024-06-14T00:37:06Z")
> [@DanB](#): > > That worked here as well for macOS Ventura 13.1 > > For TLDR people, close any clients and designers open, then open a terminal prompt and give the command: > `sudo rm -rf ~/.ignition` > Type your user password and that should be it > > \*sudo was necessary here due to the permissions Ignition set to the folder Saying thank you as well. I had the issue where, in Debian 12, the `.ignition` folder was created (I think during the Gateway installation) that required being a superuser to access. Deleting that folder as described above cleared that issue and allowed the Designer to launch.