[FIXED] PermissionError while starting the kernel in Spyder's IPython console

Issue

When I launch spyder, this error appears :

Traceback (most recent call last):
File "C:\ProgramData\Anaconda3\lib\site‑packages\spyder\plugins\ipythonconsole.py", line 1572, in create_kernel_manager_and_kernel_client
kernel_manager.start_kernel(stderr=stderr_handle)
File "C:\ProgramData\Anaconda3\lib\site‑packages\jupyter_client\manager.py", line 240, in start_kernel
self.write_connection_file()
File "C:\ProgramData\Anaconda3\lib\site‑packages\jupyter_client\connect.py", line 547, in write_connection_file
kernel_name=self.kernel_name
File "C:\ProgramData\Anaconda3\lib\site‑packages\jupyter_client\connect.py", line 212, in write_connection_file
with secure_write(fname) as f:
File "C:\ProgramData\Anaconda3\lib\contextlib.py", line 112, in __enter__
return next(self.gen)
File "C:\ProgramData\Anaconda3\lib\site‑packages\jupyter_client\connect.py", line 102, in secure_write
with os.fdopen(os.open(fname, open_flag, 0o600), mode) as f:
PermissionError: [Errno 13] Permission denied: 'C:\\Users\\Sébastien\\AppData\\Roaming\\jupyter\\runtime\\kernel‑e1f2b044843b.json'

I am not experienced at all in programming but I tried to enter commands in the Anaconda prompt but none of this worked ("conda update jupyter_client" and "conda update --all") I also tried to install and uninstall but I still get the same error.

Solution

This seems a permissions issue. Running Spyder as administrator (right click on it-> run as administrator) solves the problem.

UPDATE: As per @CarlosCordoba: "To fix this the OP needs to run conda update anaconda and then conda update jupyter_client in the Anaconda Prompt"

Note that the original workaround worked as well in this case.

Answered By - the_ccalderon