UE 5.4.2 - v5.0.1 - Plugin 'UltraleapTracking' failed to load because module 'UltraleapTrackingEditor' could not be loaded

[kefon]

I'm unable to launch an existing 5.4.2 UE project using the Ultraleap plugin (v5.0.1). I tried a different approaches but each time I activate the plugin and restart the editor, I get the error:

"Plugin 'UltraleapTracking' failed to load because module 'UltraleapTrackingEditor' could not be loaded".

What I tried:

• add the plugin via the marketplace (add the plugin to 5.4.2 engine), open the project and activate the plugin, restart -> error

• uninstall the plugin from the engine, then download the plugin via github (using latest release v5.0.1), add the plugin into the Plugins folder, launch the project -> error

• redo the two previous steps using a new empty project -> error

Any idea?
Thanks!

My setup:

• Leap Motion Controller v1
• Ultraleap Gemini v5.20.0
• Window 11
• For precision, I have previous projects in UE 5.2 + ultraleap plugin working fine

[JamesProvan-UL]

Hi @kefon.

This due to a dependency our plugin has on the OpenXR plugin. This has always been the case, but it looks like its now a breaking issue in Unreal Engine 5.4.

I am going to look at fixing this directly in our plugin, but in the meantime please follow these steps to get 5.0.1 working in UE 5.4.

1. Create a new Unreal 5.4 project.
2. Open the project and enable OpenXR plugin in the "Plugins" window.
3. Close the project, then add the Ultraleap hand tracking plugin using either the marketplace or via GitHub directly.
4. Re-open the project - you should find the error does not occur and you can now use our plugin.

Hope that works out for you.
Jim

[kefon]

Hello Jim, Thanks a lot for this answer. Yeah in previous versions of Unreal it wasn't a real issue, but it is in 5.4. I will test the workaround you mentioned. Best, Fabien Le mer. 31 juil. 2024, 14:55, James Provan ***@***.***> a écrit :

…

Hi @kefon <https://github.com/kefon>. This due to a dependency our plugin has on the OpenXR plugin. This has always been the case, but it looks like its now a breaking issue in Unreal Engine 5.4. I am going to look at fixing this directly in our plugin, but in the meantime please follow these steps to get 5.0.1 working in UE 5.4. 1. Create a new Unreal 5.4 project. 2. Open the project and enable OpenXR plugin in the "Plugins" window. 3. Close the project, then add the Ultraleap hand tracking plugin using either the marketplace or via GitHub directly. 4. Re-open the project - you should find the error does not occur and you can now use our plugin. Hope that works out for you. Jim — Reply to this email directly, view it on GitHub <#147 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ABJWAAFGOAXCK7GCH7KP5QDZPDNDFAVCNFSM6AAAAABKPVZLBCVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDENRQGQ2TQNZQGE> . You are receiving this because you were mentioned.Message ID: ***@***.***>

[kefon]

Your solution worked for me! Thanks a lot. Le mer. 31 juil. 2024 à 15:02, Fabien Bouchard ***@***.***> a écrit :

…

Hello Jim, Thanks a lot for this answer. Yeah in previous versions of Unreal it wasn't a real issue, but it is in 5.4. I will test the workaround you mentioned. Best, Fabien Le mer. 31 juil. 2024, 14:55, James Provan ***@***.***> a écrit : > Hi @kefon <https://github.com/kefon>. > > This due to a dependency our plugin has on the OpenXR plugin. This has > always been the case, but it looks like its now a breaking issue in Unreal > Engine 5.4. > > I am going to look at fixing this directly in our plugin, but in the > meantime please follow these steps to get 5.0.1 working in UE 5.4. > > 1. Create a new Unreal 5.4 project. > 2. Open the project and enable OpenXR plugin in the "Plugins" window. > 3. Close the project, then add the Ultraleap hand tracking plugin > using either the marketplace or via GitHub directly. > 4. Re-open the project - you should find the error does not occur and > you can now use our plugin. > > Hope that works out for you. > Jim > > — > Reply to this email directly, view it on GitHub > <#147 (comment)>, > or unsubscribe > <https://github.com/notifications/unsubscribe-auth/ABJWAAFGOAXCK7GCH7KP5QDZPDNDFAVCNFSM6AAAAABKPVZLBCVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDENRQGQ2TQNZQGE> > . > You are receiving this because you were mentioned.Message ID: > ***@***.***> >