Anaconda Navigator, MacOS Tahoe - broken after latest update attempt

Product Help
1

Hi there - I’ve been using Anaconda Navigator/Jupyter Notebooks/Jupyter lab for a few semesters now as I wind my way through some extended-learning courses.

I got a prompt for a new update this week, and as I usually do on the Mac, clicked the “Install” button - this usually works but blew up on me once before.

Long story short: Install did not appear to do anything/process hung - I let it run all night after restarting, same results.

AND NOW- I cannot start Navigator at all, no error, no anything on the Mac desktop. Here’s what I get if I try to start on the CLI:

(base) johanna@Obsidian ~ % anaconda-navigator
Traceback (most recent call last):
File “/opt/anaconda3/bin/anaconda-navigator”, line 7, in
from anaconda_navigator.app.main import main
File “/opt/anaconda3/lib/python3.12/site-packages/anaconda_navigator/app/main.py”, line 24, in
from anaconda_navigator.app.start import start_app # noqa: E402
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File “/opt/anaconda3/lib/python3.12/site-packages/anaconda_navigator/app/start.py”, line 32, in
from anaconda_navigator.widgets.main_window import MainWindow
File “/opt/anaconda3/lib/python3.12/site-packages/anaconda_navigator/widgets/main_window/init.py”, line 68, in
from . import whats_new_components
File “/opt/anaconda3/lib/python3.12/site-packages/anaconda_navigator/widgets/main_window/whats_new_components.py”, line 20, in
from anaconda_navigator.widgets.web import whats_new as whats_new_dialogs
File “/opt/anaconda3/lib/python3.12/site-packages/anaconda_navigator/widgets/web/whats_new.py”, line 17, in
from qtpy import QtWebEngineWidgets
File “/opt/anaconda3/lib/python3.12/site-packages/qtpy/QtWebEngineWidgets.py”, line 64, in
from PySide6.QtWebEngineCore import (
ModuleNotFoundError: No module named ‘PySide6.QtWebEngineCore’

Can I recover this somehow, or do I need to figure out how to reinstall the whole thing? Really inconvenient as I’m in the middle of two courses that use this. Just my luck!

Thanks.

2

I have the exactly same issue

3

I have the same problem too. Then, I used ChatGPT to help and had to reset, reinstall everything via MacOS Terminal.

If your Mac is Apple Silicon (arm64)

Good news: Anaconda Navigator 2.7.0 is available for Apple Silicon on the main channel. Anaconda+1
Even better, 2.7.0 is the current release and is designed to work with the newer conda (25.9 etc.), so you don’t need to force conda<25.9.

Step A – Install Navigator 2.7.0

In Terminal (base env active):

conda install "anaconda-navigator=2.7.0"

Say a to accept the ToS, y to proceed when it shows a plan.

This should pull in compatible versions of conda-token and anaconda-auth automatically. Anaconda+1

Step B – Reset and launch

After install:

anaconda-navigator --reset
anaconda-navigator

If that works, you’re done and you’re on Navigator 2.7.0 :tada:

Hope this helps.

4

Note: You will need to reinstall the Python Packages as well. Pandas, Numpy, ….