# V8.1.3 Launch Error Specified Vision Client No Longer Exist

**URL:** <https://forum.inductiveautomation.com/t/v8-1-3-launch-error-specified-vision-client-no-longer-exist/68345>\
**Category:** General Discussion\
**Tags:** vision\
**Created:** [January 7, 2023, 10:00pm UTC](https://forum.inductiveautomation.com/t/v8-1-3-launch-error-specified-vision-client-no-longer-exist/68345 "2023-01-07T22:00:54Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![fivecents](https://avatars.discourse-cdn.com/v4/letter/f/d9b06d/32.png) [@fivecents](https://forum.inductiveautomation.com/u/fivecents)\
**Post date:** [January 7, 2023, 10:00pm UTC](https://forum.inductiveautomation.com/t/v8-1-3-launch-error-specified-vision-client-no-longer-exist/68345/1 "2023-01-07T22:00:54Z")

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Application was running on windows 10 Pro 20H2. Vision client gives launch error.  
Any ideas for troubleshooting?

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**Author:** ![justinedwards.jle](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/justinedwards.jle/32/37854_2.png) [@justinedwards.jle](https://forum.inductiveautomation.com/u/justinedwards.jle)\
**Post date:** [January 8, 2023, 3:33am UTC](https://forum.inductiveautomation.com/t/v8-1-3-launch-error-specified-vision-client-no-longer-exist/68345/2 "2023-01-08T03:33:26Z")

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Most of the errors I see at launch can be fixed by deleting the cache file. I'm not sure about Client No Longer exists though.

```auto
C:\Users\USERNAME\.ignition\cache

```

Ignition will automatically rebuild it, and the corrupted or locked file will be replaced in the process

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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:** [January 8, 2023, 2:40pm UTC](https://forum.inductiveautomation.com/t/v8-1-3-launch-error-specified-vision-client-no-longer-exist/68345/3 "2023-01-08T14:40:22Z")

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That suggests the launcher config file has been modified since that short cut last worked. Renaming an application in the launcher will break shortcuts that point at ti.

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**Author:** ![Julio\_Paz](https://avatars.discourse-cdn.com/v4/letter/j/f17d59/32.png) [@Julio\_Paz](https://forum.inductiveautomation.com/u/Julio_Paz)\
**Post date:** [January 25, 2024, 9:52pm UTC](https://forum.inductiveautomation.com/t/v8-1-3-launch-error-specified-vision-client-no-longer-exist/68345/4 "2024-01-25T21:52:30Z")

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I have the same issue. Was deleting the cache file the fix?

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**Author:** ![fivecents](https://avatars.discourse-cdn.com/v4/letter/f/d9b06d/32.png) [@fivecents](https://forum.inductiveautomation.com/u/fivecents)\
**Post date:** [February 7, 2024, 7:26pm UTC](https://forum.inductiveautomation.com/t/v8-1-3-launch-error-specified-vision-client-no-longer-exist/68345/5 "2024-02-07T19:26:37Z")

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My memory on this issue seems to be it was a permissions thing in a domain setting.

However prior experience dictates my memory not at 100%.