# Fcm branch-create error

**URL:** <https://cms-helpdesk.ncas.ac.uk/t/fcm-branch-create-error/1821>\
**Category:** Rose/Cylc and FCM\
**Created:** [1 October 2025 14:36 UTC](https://cms-helpdesk.ncas.ac.uk/t/fcm-branch-create-error/1821 "2025-10-01T14:36:42Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![SimonTett](https://avatars.discourse-cdn.com/v4/letter/s/3da27b/32.png) [@SimonTett](https://cms-helpdesk.ncas.ac.uk/u/SimonTett)\
**Post date:** [1 October 2025 14:36 UTC](https://cms-helpdesk.ncas.ac.uk/t/fcm-branch-create-error/1821/1 "2025-10-01T14:36:43Z")

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Dear NCAS helpdesk,

I am trying to create a new branch at 13.8 using the guidance in the UM tutorial:

fcm branch-create --type dev -k 8032 qump\_range fcm:um.x\_tr@vn13.8

but get an error:

> [FAIL] svn info --xml fcm:um.x\_tr@vn13.8 # rc=1  
> [FAIL] svn: E205000: Try ‘svn help info’ for more information  
> [FAIL] svn: E205000: Syntax error parsing peg revision ‘vn13.8’

I actually want the UKESM1 config @ 13.8. Does that need me to specify the revision id?

Can you help me?

Simon

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**Author:** ![RosalynHatcher](https://dub1.discourse-cdn.com/flex013/user_avatar/cms-helpdesk.ncas.ac.uk/rosalynhatcher/32/11_2.png) [@RosalynHatcher](https://cms-helpdesk.ncas.ac.uk/u/RosalynHatcher)\
**Post date:** [1 October 2025 15:01 UTC](https://cms-helpdesk.ncas.ac.uk/t/fcm-branch-create-error/1821/2 "2025-10-01T15:01:23Z")

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Hi Simon,

That error message usually means your MOSRS password isn’t cached.

Try running `fcm ls fcm:um.x-tr` if it prompts for your password you need to recache by running `mosrs-cache-password`.

Cheers,  
Ros.

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<div class="post-metadata">

**Author:** ![SimonTett](https://avatars.discourse-cdn.com/v4/letter/s/3da27b/32.png) [@SimonTett](https://cms-helpdesk.ncas.ac.uk/u/SimonTett)\
**Post date:** [1 October 2025 15:35 UTC](https://cms-helpdesk.ncas.ac.uk/t/fcm-branch-create-error/1821/3 "2025-10-01T15:35:41Z")

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Hi Ros, you were right. I did need to recache my passwd.

> [tetts@puma2 branches]$ fcm ls fcm:um.x\_tr  
> COPYRIGHT.txt  
> CodeOwners.txt  
> ConfigOwners.txt  
> admin/  
> bin/  
> fab/  
> fcm-make/  
> rose-meta/  
> rose-stem/  
> src/

but it does not solve my problem ☹

[tetts@puma2 branches]$ fcm branch-create --type dev -k 8032 qump\_range fcm:um.x-tr@13.8  
[FAIL] svn info --xml fcm:um.x-tr@13.8 # rc=1  
[FAIL] svn: E205000: Try ‘svn help info’ for more information  
[FAIL] svn: E205000: Syntax error parsing peg revision ‘13.8’

Simon

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<div class="post-metadata">

**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:** [1 October 2025 15:54 UTC](https://cms-helpdesk.ncas.ac.uk/t/fcm-branch-create-error/1821/4 "2025-10-01T15:54:05Z")

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add vn

fcm branch-create --type dev -k 8032 qump\_range fcm:um.x-tr@vn13.8

Grenville

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<div class="post-metadata">

**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:** [3 October 2025 15:54 UTC](https://cms-helpdesk.ncas.ac.uk/t/fcm-branch-create-error/1821/5 "2025-10-03T15:54:05Z")

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