RuntimeError: This task group is not active; no new tasks can be started.

[ste-goldstein]

I'm trying to connect to a server:
jpterm --server 'https://jupyterhub.dataspace.copernicus.eu/user/my@email.com/?token=mytoken'

The app briefly loads and I can see my remote file. Then it crashes with the errer:

 /home/user/.local/share/virtualenvs/jpterm-env-KIz3eMwl/lib/python3.13/site-packages/anyio/_ba │
│ ckends/_asyncio.py:837 in _spawn                                                                 │
│                                                                                                  │
│    834 │   │   │   │   )                                                                         │
│    835 │   │                                                                                     │
│    836 │   │   if not self._active:                                                              │
│ ❱  837 │   │   │   raise RuntimeError(                                                           │
│    838 │   │   │   │   "This task group is not active; no new tasks can be started."             │
│    839 │   │   │   )                                                                             │
│    840                                                                                           │
│                                                                                                  │
│ ╭─────────────────────────────────────────── locals ───────────────────────────────────────────╮ │
│ │               args = ()                                                                      │ │
│ │               func = <bound method Task.wait of <anyioutils._task.Task object at             │ │
│ │                      0x7fcc8564da90>>                                                        │ │
│ │               name = None                                                                    │ │
│ │               self = <anyio._backends._asyncio.TaskGroup object at 0x7fcc8450dc50>           │ │
│ │ task_status_future = None                                                                    │ │
│ ╰──────────────────────────────────────────────────────────────────────────────────────────────╯ │
╰──────────────────────────────────────────────────────────────────────────────────────────────────╯
RuntimeError: This task group is not active; no new tasks can be started.

Am I missing something ?

[davidbrochart]

Hard to say what's going on, do you have a full stack trace?

[ste-goldstein]

The problem seems to start with fps calling tlx_notebook_editor
AttributeError: 'NotebookEditorModule' object has no attribute 'tg'
I added the contents of pip freeze at the end of the stack trace

stack_trace.txt

[davidbrochart]

Does it work when opening the file locally (running jpterm without --server)?
Also, would you mind sharing this notebook?

[ste-goldstein]

Yes, no issues locally.
I'll send the notebook link to your email