# Checksum mismatch error when opening desinger

**URL:** <https://forum.inductiveautomation.com/t/checksum-mismatch-error-when-opening-desinger/26326>\
**Category:** Ignition Early Access\
**Created:** [July 6, 2019, 4:30am UTC](https://forum.inductiveautomation.com/t/checksum-mismatch-error-when-opening-desinger/26326 "2019-07-06T04:30:19Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![chris.roys](https://avatars.discourse-cdn.com/v4/letter/c/e9c0ed/32.png) [@chris.roys](https://forum.inductiveautomation.com/u/chris.roys)\
**Post date:** [July 6, 2019, 4:30am UTC](https://forum.inductiveautomation.com/t/checksum-mismatch-error-when-opening-desinger/26326/1 "2019-07-06T04:30:20Z")

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Hello  
I install v8.0.3 latest nightly release and when I try to open designer from other computer in the network I get following error:

![image](https://us1.discourse-cdn.com/inductiveautomation/original/2X/d/dca98f9991b85bb3fe5a2d3341a19ce4ef392937.png)

There is not such error in in the gateway PC when I open the desinger.

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**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:** [July 6, 2019, 1:00pm UTC](https://forum.inductiveautomation.com/t/checksum-mismatch-error-when-opening-desinger/26326/2 "2019-07-06T13:00:02Z")

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Have you tried downloading a Designer Launcher from that gateway? It looks like you’re launching with one from 7.9 or something…