# Module development question **URL:** \ **Category:** Module Development\ **Created:** [October 18, 2018, 7:30am UTC](https://forum.inductiveautomation.com/t/module-development-question/20257 "2018-10-18T07:30:31Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![roohi876](https://avatars.discourse-cdn.com/v4/letter/r/2acd7d/32.png) [@roohi876](https://forum.inductiveautomation.com/u/roohi876)\ **Post date:** [October 18, 2018, 7:30am UTC](https://forum.inductiveautomation.com/t/module-development-question/20257/1 "2018-10-18T07:30:31Z")
Hi Kevin I am really grateful for the sample code you have uploaded for component creation. I have used your code to create my own. The client, design and build modules I have changed as per my requirements. I have not changed any thing in client launch. I have created the modl file. It has successfully loaded in local gateway. The new component is visible in client palette. But can not launch it on main windows. I must have missed some thing. I need your valuable advice to complete it. Thanks and regards. Roohi ---
**Author:** ![PerryAJ](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/perryaj/32/3281_2.png) [@PerryAJ](https://forum.inductiveautomation.com/u/PerryAJ)\ **Post date:** [October 19, 2018, 12:05am UTC](https://forum.inductiveautomation.com/t/module-development-question/20257/2 "2018-10-19T00:05:16Z")
When you say you can’t launch it on client windows, I assume you mean that it works in the designer, but a saved project that uses that component will not display it? Are there an logs/error messages when you try to launch the window?