# \[BUG-785\] 8.1-rc2 Can't log in to designer

**URL:** <https://forum.inductiveautomation.com/t/bug-785-8-1-rc2-cant-log-in-to-designer/39523>\
**Category:** Ignition Early Access\
**Created:** [October 9, 2020, 12:45am UTC](https://forum.inductiveautomation.com/t/bug-785-8-1-rc2-cant-log-in-to-designer/39523 "2020-10-09T00:45:57Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![joshdunstan](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/joshdunstan/32/43306_2.png) [@joshdunstan](https://forum.inductiveautomation.com/u/joshdunstan)\
**Post date:** [October 9, 2020, 12:45am UTC](https://forum.inductiveautomation.com/t/bug-785-8-1-rc2-cant-log-in-to-designer/39523/1 "2020-10-09T00:45:57Z")

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Hey guys getting this error when logging in to the designer

jave.lang.NoClassDefFoundError:  
com/teamdev/jxbrowser/of/EnvironmentException

This combined with the bug that means I can’t write SQL queries on (8.0.16) means we now have a dozen unusable projects.

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**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 9, 2020, 2:12am UTC](https://forum.inductiveautomation.com/t/bug-785-8-1-rc2-cant-log-in-to-designer/39523/2 "2020-10-09T02:12:46Z")

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jxBrowser was upgraded from version 6 to version 7. Anything your scripts use that jxBrowser’s developers discarded will have to be rewritten to whatever v7 supplies.

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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:** [October 9, 2020, 2:45am UTC](https://forum.inductiveautomation.com/t/bug-785-8-1-rc2-cant-log-in-to-designer/39523/3 "2020-10-09T02:45:41Z")

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Might also try deleting the `~/.ignition` folder on the machine you’re trying to launch from and try again.

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**Author:** ![joshdunstan](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/joshdunstan/32/43306_2.png) [@joshdunstan](https://forum.inductiveautomation.com/u/joshdunstan)\
**Post date:** [October 9, 2020, 3:14am UTC](https://forum.inductiveautomation.com/t/bug-785-8-1-rc2-cant-log-in-to-designer/39523/4 "2020-10-09T03:14:27Z")

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Thanks, so our clients still work but not the designer? Does this seem like a symptom of this?

We are only using vision… not perspective.

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**Author:** ![brandon1](https://avatars.discourse-cdn.com/v4/letter/b/ea666f/32.png) [@brandon1](https://forum.inductiveautomation.com/u/brandon1)\
**Post date:** [October 12, 2020, 3:15pm UTC](https://forum.inductiveautomation.com/t/bug-785-8-1-rc2-cant-log-in-to-designer/39523/5 "2020-10-12T15:15:25Z")

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One of my coworkers has the same issue. What is the method to fix this?

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**Author:** ![James.Lorenz](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/james.lorenz/32/3290_2.png) [@James.Lorenz](https://forum.inductiveautomation.com/u/James.Lorenz)\
**Post date:** [October 13, 2020, 12:04am UTC](https://forum.inductiveautomation.com/t/bug-785-8-1-rc2-cant-log-in-to-designer/39523/6 "2020-10-13T00:04:21Z")

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We’ve fixed this issue for RC3, but for now, you’ll need to install the Perspective module to avoid this issue.