My julia notebooks were working fine but today this "kernel error" appeared and I don't know how to deal with this:
Traceback (most recent call last):
File "/home/antonio/anaconda3/lib/python3.9/site-packages/tornado/web.py", line 1704, in _execute
result = await result
File "/home/antonio/anaconda3/lib/python3.9/site-packages/tornado/gen.py", line 769, in run
yielded = self.gen.throw(*exc_info) # type: ignore
File "/home/antonio/anaconda3/lib/python3.9/site-packages/notebook/services/sessions/handlers.py", line 74, in post
model = yield maybe_future(
File "/home/antonio/anaconda3/lib/python3.9/site-packages/tornado/gen.py", line 762, in run
value = future.result()
File "/home/antonio/anaconda3/lib/python3.9/site-packages/tornado/gen.py", line 769, in run
yielded = self.gen.throw(*exc_info) # type: ignore
File "/home/antonio/anaconda3/lib/python3.9/site-packages/notebook/services/sessions/sessionmanager.py", line 98, in create_session
kernel_id = yield self.start_kernel_for_session(session_id, path, name, type, kernel_name)
File "/home/antonio/anaconda3/lib/python3.9/site-packages/tornado/gen.py", line 762, in run
value = future.result()
File "/home/antonio/anaconda3/lib/python3.9/site-packages/tornado/gen.py", line 769, in run
yielded = self.gen.throw(*exc_info) # type: ignore
File "/home/antonio/anaconda3/lib/python3.9/site-packages/notebook/services/sessions/sessionmanager.py", line 110, in start_kernel_for_session
kernel_id = yield maybe_future(
File "/home/antonio/anaconda3/lib/python3.9/site-packages/tornado/gen.py", line 762, in run
value = future.result()
File "/home/antonio/anaconda3/lib/python3.9/site-packages/notebook/services/kernels/kernelmanager.py", line 176, in start_kernel
kernel_id = await maybe_future(self.pinned_superclass.start_kernel(self, **kwargs))
File "/home/antonio/anaconda3/lib/python3.9/site-packages/jupyter_client/multikernelmanager.py", line 186, in start_kernel
km.start_kernel(**kwargs)
File "/home/antonio/anaconda3/lib/python3.9/site-packages/jupyter_client/manager.py", line 341, in start_kernel
self.kernel = self._launch_kernel(kernel_cmd, **kw)
File "/home/antonio/anaconda3/lib/python3.9/site-packages/jupyter_client/manager.py", line 249, in _launch_kernel
return launch_kernel(kernel_cmd, **kw)
File "/home/antonio/anaconda3/lib/python3.9/site-packages/jupyter_client/launcher.py", line 132, in launch_kernel
proc = Popen(cmd, **kwargs)
File "/home/antonio/anaconda3/lib/python3.9/subprocess.py", line 951, in __init__
self._execute_child(args, executable, preexec_fn, close_fds,
File "/home/antonio/anaconda3/lib/python3.9/subprocess.py", line 1821, in _execute_child
raise child_exception_type(errno_num, err_msg, err_filename)
FileNotFoundError: [Errno 2] No such file or directory: '/snap/julia/13/bin/julia'
I tried to uninstall and install again both julia and IJulia but it didn't worked. I use linux Mint latest version.
It seems that your kernel points to a inexisting julia
No such file or directory: '/snap/julia/13/bin/julia'
How did you installed Julia ? I do not know very well snap, but it a tools to install some applications.
If you have a console you could list the kernels by
jupyter kernelspec list
Available kernels:
julia-1.8 /home/user/.local/share/jupyter/kernels/julia-1.8
python3.9 /home/user/.local/share/jupyter/kernels/python3.9
python3 /usr/share/jupyter/kernels/python3
sagemath /usr/share/jupyter/kernels/sagemath
you could look at the file for example '/home/user/.local/share/jupyter/kernels/julia-1.8/kernel.json' inside you have information about the interpretor
{
"display_name": "Julia 1.8.1",
"argv": [
"/usr/bin/julia",
"-i",
"--color=yes",
"--project=@.",
"/home/user/.julia/packages/IJulia/someHASHNUMBER/src/kernel.jl",
"{connection_file}"
],
"language": "julia",
"env": {},
"interrupt_mode": "signal"
}
here you could see that the interpretor is /usr/bin/julia. Try to modify it, to points towards a good julia executable.
Last point : to install IJulia, you use Pkg.add("IJulia") inside the REPL or it is your distro installator ?