![]() It tries to restart 5 times (so some repeated code from above) then shows the following: KernelRestarter: restarting kernel (1/5) TypeError: metaclass conflict: the metaclass of a derived class must be a (non-strict) subclass of the metaclasses of all its bases 404 GET /kernelspecs/Python%20/logo-64圆4.png (::1) 25.64ms referer= Traceback (most recent call last):įile "/Users/jedgecombe/anaconda3/lib/python3.5/runpy.py", line 184, in _run_module_as_mainįile "/Users/jedgecombe/anaconda3/lib/python3.5/runpy.py", line 85, in _run_codeįile "/Users/jedgecombe/anaconda3/lib/python3.5/site-packages/ipykernel/ main.py", line 2, inįile "/Users/jedgecombe/anaconda3/lib/python3.5/site-packages/ipykernel/kernelapp.py", line 98, in Notebook Dropbox/Python/AB_testing/template/ab_test_template.ipynb is not trusted The Jupyter Notebook is running at: Use Control-C to stop this server and shut down all kernels (twice to skip confirmation). Serving notebooks from local directory: /Users/jedgecombe ✗ nbpresent PDF export DISABLED: No module named 'nbbrowserpdf' The port 8888 is already in use, trying another port. If you are not able to restart the kernel, you will still be able to save the notebook, but running code will no longer work until the notebook is reopened. ![]() It is possible the kernel cannot be restarted. The kernel has died, and the automatic restart has failed. When opening any jupyter notebook, even one with no code in, I get the 'Dead kernal' message:
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