# Retarget to 7.8 and 7.9

**URL:** <https://forum.inductiveautomation.com/t/retarget-to-7-8-and-7-9/42407>\
**Category:** Ignition\
**Tags:** ignition80\
**Created:** [January 19, 2021, 5:34pm UTC](https://forum.inductiveautomation.com/t/retarget-to-7-8-and-7-9/42407 "2021-01-19T17:34:58Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![yehet73190](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/yehet73190/32/68157_2.png) [@yehet73190](https://forum.inductiveautomation.com/u/yehet73190)\
**Post date:** [January 19, 2021, 5:34pm UTC](https://forum.inductiveautomation.com/t/retarget-to-7-8-and-7-9/42407/1 "2021-01-19T17:34:58Z")

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Hi

I have a project that’s setup on a 8.0.2 ignition gateway. There are buttons on that project that targets to other projects on different gateways. I have older projects that’s on a 7.8 and 7.9 ignition gateway, when I try to navigate to those using system.util.retarget I get this error:

![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/e/b/eb5e6da37716d7330795ff6928f2c67ae8bd071d.png)

Is this possibly a version issue? Like util.retarget only works if the project/gateway im redirecting/switching to is on the same version.

Is there an alternative I can use other than util.retarget so I can switch to other projects that’s on a different version?’

Thank you

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**Author:** ![jcoffman](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/jcoffman/32/6429_2.png) [@jcoffman](https://forum.inductiveautomation.com/u/jcoffman)\
**Post date:** [January 19, 2021, 5:41pm UTC](https://forum.inductiveautomation.com/t/retarget-to-7-8-and-7-9/42407/2 "2021-01-19T17:41:11Z")

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Unfortunately there isn’t a lot that can be done here. 8.x has a lot of breaking changes from the 7.x product which makes this extremely difficult to do. The only option would be to call out to the 7.x Native Client Launcher and launch a completely new client as a temporary option until you get all the gateways migrated to an 8.1 version. I do not recommend this at all as it would be very brittle.

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**Author:** ![yehet73190](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/yehet73190/32/68157_2.png) [@yehet73190](https://forum.inductiveautomation.com/u/yehet73190)\
**Post date:** [January 21, 2021, 4:23pm UTC](https://forum.inductiveautomation.com/t/retarget-to-7-8-and-7-9/42407/3 "2021-01-21T16:23:28Z")

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Got it. Thank you!