# Designer Launcher 1.3.0

**URL:** <https://forum.inductiveautomation.com/t/designer-launcher-1-3-0/112814>\
**Category:** Ignition\
**Created:** [December 15, 2025, 3:42pm UTC](https://forum.inductiveautomation.com/t/designer-launcher-1-3-0/112814 "2025-12-15T15:42:45Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![jfan](https://avatars.discourse-cdn.com/v4/letter/j/e8c25b/32.png) [@jfan](https://forum.inductiveautomation.com/u/jfan)\
**Post date:** [December 15, 2025, 3:42pm UTC](https://forum.inductiveautomation.com/t/designer-launcher-1-3-0/112814/1 "2025-12-15T15:42:45Z")

</div>

Anyone run into an issue where the designer launcher from 8.3 cannot open projects from 8.1.X?

---

<div class="post-metadata">

**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\
**Post date:** [December 15, 2025, 3:45pm UTC](https://forum.inductiveautomation.com/t/designer-launcher-1-3-0/112814/2 "2025-12-15T15:45:54Z")

</div>

Designer Launchers don't open projects, they open Designers.

Designers open projects.

Are you failing to launch a Designer against an 8.1.x gateway? What version of 8.1 is it? What is the error?

---

<div class="post-metadata">

**Author:** ![jfan](https://avatars.discourse-cdn.com/v4/letter/j/e8c25b/32.png) [@jfan](https://forum.inductiveautomation.com/u/jfan)\
**Post date:** [December 15, 2025, 3:48pm UTC](https://forum.inductiveautomation.com/t/designer-launcher-1-3-0/112814/3 "2025-12-15T15:48:47Z")

</div>

yes, I meant I used the designer launcher from 8.3 gateway to try to access the 8.1 gateway, but getting an error “this launch client jar signature is invalid“

---

<div class="post-metadata">

**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\
**Post date:** [December 15, 2025, 3:49pm UTC](https://forum.inductiveautomation.com/t/designer-launcher-1-3-0/112814/4 "2025-12-15T15:49:19Z")

</div>

Probably this: [8.3 designer unable to open Ignition 8.0.4 GW - #2 by Daniel\_Kearney](https://forum.inductiveautomation.com/t/8-3-designer-unable-to-open-ignition-8-0-4-gw/110509/2)