# Error in running JULES

**URL:** <https://cms-helpdesk.ncas.ac.uk/t/error-in-running-jules/1810>\
**Category:** JULES\
**Tags:** JASMIN\
**Created:** [22 September 2025 10:43 UTC](https://cms-helpdesk.ncas.ac.uk/t/error-in-running-jules/1810 "2025-09-22T10:43:50Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![n.kangari](https://avatars.discourse-cdn.com/v4/letter/n/9f8e36/32.png) [@n.kangari](https://cms-helpdesk.ncas.ac.uk/u/n.kangari)\
**Post date:** [22 September 2025 10:43 UTC](https://cms-helpdesk.ncas.ac.uk/t/error-in-running-jules/1810/1 "2025-09-22T10:43:50Z")

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Hi,

I am trying to run the suite u-dr154. I am getting an error that says user not found (screenshot attached)

 ![Screenshot 2025-09-22 at 11.37.24](https://europe1.discourse-cdn.com/flex013/uploads/cms_support/original/1X/9183f0379adcc5bc9aedb430a84143d68e3ad060.jpeg)

How can I resolve this issue? I do not find a place where the I am defining this.

Thanks for the help in advance.

Kind regrads

Narender

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**Author:** ![n.kangari](https://avatars.discourse-cdn.com/v4/letter/n/9f8e36/32.png) [@n.kangari](https://cms-helpdesk.ncas.ac.uk/u/n.kangari)\
**Post date:** [29 September 2025 14:26 UTC](https://cms-helpdesk.ncas.ac.uk/t/error-in-running-jules/1810/2 "2025-09-29T14:26:32Z")

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Hi CMS,

It’s been a week I posted the error message. Is this a very unsual error?

Can it be resolved?

Kind regards,

Narender

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**Author:** ![grenville](https://dub1.discourse-cdn.com/flex013/user_avatar/cms-helpdesk.ncas.ac.uk/grenville/32/29_2.png) [@grenville](https://cms-helpdesk.ncas.ac.uk/u/grenville)\
**Post date:** [29 September 2025 16:21 UTC](https://cms-helpdesk.ncas.ac.uk/t/error-in-running-jules/1810/3 "2025-09-29T16:21:21Z")

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I think the problem really is with a missing optional configuration file:

[`FAIL] Bad optional configuration key(s): main`  
`2025-09-29T11:30:52+01:00 CRITICAL - failed/ERR`

the only opt files are:

`/home/users/naren047/roses/u-dr154/app/jules/opt`  
`(base) glister@cylc2$ ls`  
`rose-app-recon.conf rose-app-spinup.conf`

Grenville

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**Author:** ![system](https://europe1.discourse-cdn.com/flex013/uploads/cms_support/original/1X/1fd2411499ffcbc299fe756cd5cdf26e44956558.png) [@system](https://cms-helpdesk.ncas.ac.uk/u/system)\
**Post date:** [29 October 2025 16:22 UTC](https://cms-helpdesk.ncas.ac.uk/t/error-in-running-jules/1810/4 "2025-10-29T16:22:14Z")

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Closed on 29 October 2025 16:22 UTC

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