# Probleme in der Schulkonsole / lmncli

**URL:** <https://ask.linuxmuster.net/t/probleme-in-der-schulkonsole-lmncli/12385>\
**Category:** Schulkonsole\
**Created:** [22. September 2026 um 13:54 UTC](https://ask.linuxmuster.net/t/probleme-in-der-schulkonsole-lmncli/12385 "2026-09-22T13:54:42Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![Tw33ki](https://ask.linuxmuster.net/user_avatar/ask.linuxmuster.net/tw33ki/32/5747_2.png) [@Tw33ki](https://ask.linuxmuster.net/u/Tw33ki)\
**Post date:** [22. September 2026 um 13:54 UTC](https://ask.linuxmuster.net/t/probleme-in-der-schulkonsole-lmncli/12385/1 "2026-09-22T13:54:42Z")

</div>

Hallo Zusammen,

wir haben bei einer Schule in der Schulkonsole folgendes Profil, wenn man versucht das Internet zu sperren bzw. wenn man die Eigenschaften eines Schülers anzeigen will.

```auto
      ███ ███ linuxmuster.net packages:
     █████ █████ -Base...........: 7.3.42-0
      ███ ███ -Linbo..........: 4.3.38-0
  ███ ███ -WebUI..........: 7.3.46
 █████ █████ -Sophomorix.....: 7.3.16

```

```auto
Traceback (most recent call last):
  File "/opt/linuxmuster/lib/python3.12/site-packages/aj/api/endpoint.py", line 77, in wrapper
    result = fx(self, context, *args, **kwargs)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/linuxmuster-webui/plugins/lmn_users/views/sophomorixUsers.py", line 188, in handle_api_sophomorix_students
    parents = subprocess.check_output(cmd).decode().strip().split('\n')
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/linuxmuster/lib/python3.12/site-packages/gevent/subprocess.py", line 427, in check_output
    raise CalledProcessError(retcode, process.args, output=output)
subprocess.CalledProcessError: Command '['/usr/sbin/lmncli', '--csv', 'student', '--parents', '--school', 'default-school', 'santopar']' returned non-zero exit status 1.

```

 ![image](https://ask.linuxmuster.net/uploads/default/original/2X/4/4983dabb687dd0369fafff3ef0edc124ede6fd85.png)

 ![image](https://ask.linuxmuster.net/uploads/default/original/2X/d/df013b2373b24f4fd5727438788ce6c38536bed4.jpeg)

Kennt das zufällig jemand von euch und weiß was man da machen könnte?

Timo

---

<div class="post-metadata">

**Author:** ![Arnaud](https://ask.linuxmuster.net/user_avatar/ask.linuxmuster.net/arnaud/32/28_2.png) [@Arnaud](https://ask.linuxmuster.net/u/Arnaud)\
**Post date:** [22. September 2026 um 20:32 UTC](https://ask.linuxmuster.net/t/probleme-in-der-schulkonsole-lmncli/12385/2 "2026-09-22T20:32:39Z")

</div>

Hallo Timo,

Kannst du bitte folgendes probieren ?

```auto
/opt/linuxmuster/bin/python3 -m pip install typing-extensions

```

Und dann die Webui neu starten.

Gruß

Arnaud

---

<div class="post-metadata">

**Author:** ![Tw33ki](https://ask.linuxmuster.net/user_avatar/ask.linuxmuster.net/tw33ki/32/5747_2.png) [@Tw33ki](https://ask.linuxmuster.net/u/Tw33ki)\
**Post date:** [23. September 2026 um 05:56 UTC](https://ask.linuxmuster.net/t/probleme-in-der-schulkonsole-lmncli/12385/3 "2026-09-23T05:56:45Z")

</div>

> root@server:~# /opt/linuxmuster/bin/python3 -m pip install typing-extensions  
> Collecting typing-extensions  
> Downloading typing\_extensions-4.16.0-py3-none-any.whl.metadata (3.3 kB)  
> Downloading typing\_extensions-4.16.0-py3-none-any.whl (45 kB)  
> Installing collected packages: typing-extensions  
> Successfully installed typing-extensions-4.16.0  
> root@server:~# systemctl restart linuxmuster-webui.service

Jetzt gehts wieder! Vielen Dank 🙂