# The Skeleton hands\_lo\_Skeleton, is missing bones that SkeletalMesh echo\_lo\_L needs. They will be added now. Please save the Skeleton! **URL:** \ **Category:** Character & Animation\ **Tags:** leap-motion, unreal-engine, missing, bug-report, skeletalmesh, question\ **Created:** [July 8, 2016, 3:52pm UTC](https://forums.unrealengine.com/t/the-skeleton-hands-lo-skeleton-is-missing-bones-that-skeletalmesh-echo-lo-l-needs-they-will-be-added-now-please-save-the-skeleton/363380 "2016-07-08T15:52:53Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![anonymous\_user\_e1600e71](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_e1600e71](https://forums.unrealengine.com/u/anonymous_user_e1600e71)\ **Post date:** [July 8, 2016, 3:52pm UTC](https://forums.unrealengine.com/t/the-skeleton-hands-lo-skeleton-is-missing-bones-that-skeletalmesh-echo-lo-l-needs-they-will-be-added-now-please-save-the-skeleton/363380/1 "2016-07-08T15:52:53Z")
Hi everyone, I have no idea why but for a couple of minutes I’m getting spam with this error message in the editor: > The Skeleton hands\_lo\_Skeleton, is missing bones that SkeletalMesh echo\_lo\_L needs. They will be added now. Please save the Skeleton! And it’s totally blocking the usage of the editor. I tried to manually save every assets in the folder of theses files but nothing changed. What should I do ? Thanks. ---
**Author:** ![anonymous\_user\_e1600e71](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_e1600e71](https://forums.unrealengine.com/u/anonymous_user_e1600e71)\ **Post date:** [July 8, 2016, 3:59pm UTC](https://forums.unrealengine.com/t/the-skeleton-hands-lo-skeleton-is-missing-bones-that-skeletalmesh-echo-lo-l-needs-they-will-be-added-now-please-save-the-skeleton/363380/2 "2016-07-08T15:59:35Z")
I’m sure it’s temporary but for now I fixed it copying the LeapMotion plugin folder from one computer to another :D. However, whenever I try to open a LeapMotion asset I have > The preview mesh hierarchy doesn’t match with Skeleton anymore. Would you like to regenerate skeleton? If I click on Yes, the previous message starts to spam. So for now I just hit “No” but the preview is obviously broken. ---
**Author:** ![catonice](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/catonice/32/88708_2.png) [@catonice](https://forums.unrealengine.com/u/catonice)\ **Post date:** [July 31, 2016, 10:12am UTC](https://forums.unrealengine.com/t/the-skeleton-hands-lo-skeleton-is-missing-bones-that-skeletalmesh-echo-lo-l-needs-they-will-be-added-now-please-save-the-skeleton/363380/3 "2016-07-31T10:12:12Z")
I’m having the same problem when trying to figure out how to get the world location of my leap hands - I was messing around trying to use the get socket location function in blueprints ---
**Author:** ![surferHalo](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@surferHalo](https://forums.unrealengine.com/u/surferHalo)\ **Post date:** [September 8, 2016, 3:03am UTC](https://forums.unrealengine.com/t/the-skeleton-hands-lo-skeleton-is-missing-bones-that-skeletalmesh-echo-lo-l-needs-they-will-be-added-now-please-save-the-skeleton/363380/4 "2016-09-08T03:03:19Z")
Just have solved the problem, but dont know why. Open the echo\_lo\_L and echo\_lo\_R at LeapMotionContent/Character/Echo, popup the message: _The preview mesh hierarchy doesn’t match with Skeleton anymore. Would you like to regenerate skeleton?_ Click Yes, and save the two, then open hands\_lo\_Skeleton, same message popup, click yes and save, if one file can’t save, use File-\>Save All or ctrl+s. Then, never touch these assets again, it will works fine. ---
**Author:** ![Prashant7373](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Prashant7373](https://forums.unrealengine.com/u/Prashant7373)\ **Post date:** [July 11, 2023, 7:15am UTC](https://forums.unrealengine.com/t/the-skeleton-hands-lo-skeleton-is-missing-bones-that-skeletalmesh-echo-lo-l-needs-they-will-be-added-now-please-save-the-skeleton/363380/5 "2023-07-11T07:15:17Z")
man you saved me this continuous pop up errors just had me frustrated ---
**Author:** ![HunterShadow1900](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@HunterShadow1900](https://forums.unrealengine.com/u/HunterShadow1900)\ **Post date:** [June 18, 2024, 1:12am UTC](https://forums.unrealengine.com/t/the-skeleton-hands-lo-skeleton-is-missing-bones-that-skeletalmesh-echo-lo-l-needs-they-will-be-added-now-please-save-the-skeleton/363380/6 "2024-06-18T01:12:22Z")
Where can I find echo\_lo\_L and echo\_lo\_R at LeapMotionContent/Character/Echo I didn’t understand ---
**Author:** ![davidpkami](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/davidpkami/32/1040403_2.png) [@davidpkami](https://forums.unrealengine.com/u/davidpkami)\ **Post date:** [August 5, 2024, 12:25pm UTC](https://forums.unrealengine.com/t/the-skeleton-hands-lo-skeleton-is-missing-bones-that-skeletalmesh-echo-lo-l-needs-they-will-be-added-now-please-save-the-skeleton/363380/7 "2024-08-05T12:25:51Z")
This just pop up in UEFN, how did you solve it? ---
**Author:** ![007havegone](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@007havegone](https://forums.unrealengine.com/u/007havegone)\ **Post date:** [September 19, 2024, 2:19pm UTC](https://forums.unrealengine.com/t/the-skeleton-hands-lo-skeleton-is-missing-bones-that-skeletalmesh-echo-lo-l-needs-they-will-be-added-now-please-save-the-skeleton/363380/8 "2024-09-19T14:19:57Z")
What wrong with the skeleton, how did you solve it?