# ValidationException Mobile **URL:** \ **Category:** Ignition\ **Tags:** ignition79\ **Created:** [September 29, 2017, 6:31am UTC](https://forum.inductiveautomation.com/t/validationexception-mobile/15507 "2017-09-29T06:31:57Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Rhys\_m](https://avatars.discourse-cdn.com/v4/letter/r/13edae/32.png) [@Rhys\_m](https://forum.inductiveautomation.com/u/Rhys_m)\ **Post date:** [September 29, 2017, 6:31am UTC](https://forum.inductiveautomation.com/t/validationexception-mobile/15507/1 "2017-09-29T06:31:58Z")
Hi people We are currently experiencing an issue when attempting to launch projects on mobile. We can get to the gateway, we can launch a project however when the loading bar is up, it comes up with an error saying "ValidationException: Unable to communicate with gateway" I have attempted the fix listed here [https://support.inductiveautomation.com/index.php?/Knowledgebase/Article/View/97/2/validationexception-after-upgrading-to-java-8-update-51](https://support.inductiveautomation.com/hc/en-us/articles/360047170352-ValidationException-after-upgrading-to-Java-8-update-51-) However we are still getting the issue, our servers are running on redhat linux. Any guidance would be great. Thanks ---
**Author:** ![Rhys\_m](https://avatars.discourse-cdn.com/v4/letter/r/13edae/32.png) [@Rhys\_m](https://forum.inductiveautomation.com/u/Rhys_m)\ **Post date:** [October 4, 2017, 3:29am UTC](https://forum.inductiveautomation.com/t/validationexception-mobile/15507/2 "2017-10-04T03:29:04Z")
Sorry to be bumping this up, just really struggling to get around this 😖 ---
**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\ **Post date:** [October 4, 2017, 12:28pm UTC](https://forum.inductiveautomation.com/t/validationexception-mobile/15507/3 "2017-10-04T12:28:54Z")
You probably ought to call support…