# Vision Client Issue After Upgdare to 8.1.13

**URL:** <https://forum.inductiveautomation.com/t/vision-client-issue-after-upgdare-to-8-1-13/54990>\
**Category:** Ignition\
**Created:** [January 13, 2022, 5:44pm UTC](https://forum.inductiveautomation.com/t/vision-client-issue-after-upgdare-to-8-1-13/54990 "2022-01-13T17:44:32Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![vasilevdim](https://avatars.discourse-cdn.com/v4/letter/v/7ba0ec/32.png) [@vasilevdim](https://forum.inductiveautomation.com/u/vasilevdim)\
**Post date:** [January 13, 2022, 5:44pm UTC](https://forum.inductiveautomation.com/t/vision-client-issue-after-upgdare-to-8-1-13/54990/1 "2022-01-13T17:44:32Z")

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Hi, guys,

After upgrade from 8.0.4 to 8.1.13, the following error pops up after trying to start Vision Client Launcher:

![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/4/8/48bbbfe26a14d20e089d6f5e629e2de82da8b0dd.png)

Any idea how to sort out that?

Regards,

D.Vasilev

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**Author:** ![zacht](https://avatars.discourse-cdn.com/v4/letter/z/ea5d25/32.png) [@zacht](https://forum.inductiveautomation.com/u/zacht)\
**Post date:** [January 13, 2022, 5:52pm UTC](https://forum.inductiveautomation.com/t/vision-client-issue-after-upgdare-to-8-1-13/54990/2 "2022-01-13T17:52:11Z")

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Sometimes deleting the folder `"C:\Users\USER_NAME\.ignition\cache"` works to clear up errors like this, assuming a windows installation. I don’t know where that folder lives on other operating systems.

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**Author:** ![vasilevdim](https://avatars.discourse-cdn.com/v4/letter/v/7ba0ec/32.png) [@vasilevdim](https://forum.inductiveautomation.com/u/vasilevdim)\
**Post date:** [January 14, 2022, 1:19pm UTC](https://forum.inductiveautomation.com/t/vision-client-issue-after-upgdare-to-8-1-13/54990/3 "2022-01-14T13:19:14Z")

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It worked, thanks a lot!