# Extension saying "UNSIGNED" problem **URL:** \ **Category:** Extensions\ **Tags:** sketchup, advice\ **Created:** [April 2, 2019, 6:32pm UTC](https://forums.sketchup.com/t/extension-saying-unsigned-problem/92340 "2019-04-02T18:32:39Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![nicklas.h.jorgensen](https://avatars.discourse-cdn.com/v4/letter/n/a4c791/32.png) [@nicklas.h.jorgensen](https://forums.sketchup.com/u/nicklas.h.jorgensen)\ **Post date:** [April 2, 2019, 6:32pm UTC](https://forums.sketchup.com/t/extension-saying-unsigned-problem/92340/1 "2019-04-02T18:32:39Z")
i have now installed the extension, but when i pull it up in the extentions panel it says “UNSIGNED”. how do i fix that. ---
**Author:** ![DaveR](https://sea2.discourse-cdn.com/sketchup/user_avatar/forums.sketchup.com/daver/32/7601_2.png) [@DaveR](https://forums.sketchup.com/u/DaveR)\ **Post date:** [April 2, 2019, 6:38pm UTC](https://forums.sketchup.com/t/extension-saying-unsigned-problem/92340/2 "2019-04-02T18:38:24Z")
> [@nicklas.h.jorgensen](#): > > i have now installed the extension What extension? “Unsigned” isn’t a thing a user can fix but it also isn’t a problem unless you set the loading permissions too strict. ---
**Author:** ![slbaumgartner](https://sea2.discourse-cdn.com/sketchup/user_avatar/forums.sketchup.com/slbaumgartner/32/7302_2.png) [@slbaumgartner](https://forums.sketchup.com/u/slbaumgartner)\ **Post date:** [April 2, 2019, 7:22pm UTC](https://forums.sketchup.com/t/extension-saying-unsigned-problem/92340/3 "2019-04-02T19:22:37Z")
Unsigned means the extension author hasn’t sent it to Trimble’s developer site to get a cryptographic signature file. For the author of a large number of extensions it can be a significant hassle to do so for every new release of SketchUp, so they may lag behind or not bother. If you download the extension from a reliable site this shouldn’t be a problem.