Hello, I have created my first Jupyter Notebook but it keeps displaying the message below along with the error log. I cancelled all running consoles, which had no affect. Can you advise what the problem is? Many thanks.
<pre><code> Dead kernel
The kernel has died, and the automatic restart has failed. It is possible the kernel cannot be restarted. 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.
Traceback (most recent call last): File "/usr/lib/python3.4/site-packages/notebook/base/handlers.py", line 457, in wrapper result = yield gen.maybe_future(method(self, *args, **kwargs)) File "/usr/lib/python3.4/site-packages/tornado/gen.py", line 1055, in run value = future.result() File "/usr/lib/python3.4/site-packages/tornado/concurrent.py", line 238, in result raise_exc_info(self._exc_info) File "<string>", line 4, in raise_exc_info File "/usr/lib/python3.4/site-packages/tornado/gen.py", line 1069, in run yielded = self.gen.send(value) File "/usr/lib/python3.4/site-packages/notebook/services/sessions/handlers.py", line 57, in post model = yield gen.maybe_future(sm.get_session(path=path)) File "/usr/lib/python3.4/site-packages/notebook/services/sessions/sessionmanager.py", line 166, in get_session return self.row_to_model(row) File "/usr/lib/python3.4/site-packages/notebook/services/sessions/sessionmanager.py", line 205, in row_to_model raise KeyError KeyError