# Mobile App

**URL:** <https://forum.inductiveautomation.com/t/mobile-app/8884>\
**Category:** General Discussion\
**Created:** [August 10, 2014, 7:14am UTC](https://forum.inductiveautomation.com/t/mobile-app/8884 "2014-08-10T07:14:46Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Cas\_Sena](https://avatars.discourse-cdn.com/v4/letter/c/a9a28c/32.png) [@Cas\_Sena](https://forum.inductiveautomation.com/u/Cas_Sena)\
**Post date:** [August 10, 2014, 7:14am UTC](https://forum.inductiveautomation.com/t/mobile-app/8884/1 "2014-08-10T07:14:46Z")

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Guys,  
I am trying to launch my mobile app but keep geeting this error:  
com.inductiveautomation.mobile.gateway.InvalidSetupException: Setup is not valid for launching mobile VMs: Unable to start callback listener.

What sghouldI do?

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<div class="post-metadata">

**Author:** ![greg.simpson](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/greg.simpson/32/3135_2.png) [@greg.simpson](https://forum.inductiveautomation.com/u/greg.simpson)\
**Post date:** [August 14, 2014, 4:30pm UTC](https://forum.inductiveautomation.com/t/mobile-app/8884/2 "2014-08-14T16:30:45Z")

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What version of Ignition are you using?  
What version of Java are you using?