couldn't install your kernel

[YousefSaber]

joseph@joseph-X541UJ:~/Downloads/ijava-1.3.0$ ls
install.py  java
joseph@joseph-X541UJ:~/Downloads/ijava-1.3.0$ python3 install.py --sys-prefix
install.py:169: DeprecationWarning: replace is ignored. Installing a kernelspec always replaces an existing installation
  replace=args.replace
Traceback (most recent call last):
  File "install.py", line 169, in <module>
    replace=args.replace
  File "/home/joseph/.local/lib/python3.7/site-packages/jupyter_client/kernelspec.py", line 346, in install_kernel_spec
    shutil.copytree(source_dir, destination)
  File "/usr/lib/python3.7/shutil.py", line 324, in copytree
    os.makedirs(dst)
  File "/usr/lib/python3.7/os.py", line 211, in makedirs
    makedirs(head, exist_ok=exist_ok)
  File "/usr/lib/python3.7/os.py", line 211, in makedirs
    makedirs(head, exist_ok=exist_ok)
  File "/usr/lib/python3.7/os.py", line 221, in makedirs
    mkdir(name, mode)
PermissionError: [Errno 13] Permission denied: '/usr/share/jupyter'
joseph@joseph-X541UJ:~/Downloads/ijava-1.3.0$ sudo python3 install.py --sys-prefix
Traceback (most recent call last):
  File "install.py", line 6, in <module>
    from jupyter_client.kernelspec import KernelSpecManager
ModuleNotFoundError: No module named 'jupyter_client'
joseph@joseph-X541UJ:~/Downloads/ijava-1.3.0$ 

please help me how to install the kernel ?

Jupyter-client is also installed on my system

joseph@joseph-X541UJ:~/Downloads/ijava-1.3.0$ python3 -m pip show jupyter-client
Name: jupyter-client
Version: 5.3.4
Summary: Jupyter protocol implementation and client libraries
Home-page: https://jupyter.org
Author: Jupyter Development Team
Author-email: jupyter@googlegroups.com
License: BSD
Location: /home/joseph/.local/lib/python3.7/site-packages
Requires: tornado, pyzmq, traitlets, jupyter-core, python-dateutil
Required-by: qtconsole, octave-kernel, notebook, jupyter-console, ipyparallel, ipykernel

[YousefSaber]

sorry with this command I could successfully install it

 jupyter kernelspec install --user  java/

[sharmila02]

I am currently facing the same error, If I leave it like that I am not getting any output

If I follow your command
jupyter kernelspec install --user java/
kernel is not connecting at all.

[YousefSaber]

@YousefSaber
just run HelloWorld.main(null)

[kqvanity]

After fiddling for a bit of time with the IJava kernel, i've had an adjustment at the kernel configuration file, which can be found as a json file located at the corresponding kernel path obtained from the jupyter kernelspec list command. I've tweaked the ijava jar file path, which was an argv array element. As for me, the initial path was prefixed with @KERNEL_INSTAll_DiRECTORY@ which i've got substituted with the file's absolute path.
Generally, I find it odd, as consecutive kernel installations got the absolute path down, without manual intervention on my side. Any how, you can try either removing the java kernel using jupyter kernelspec remove java or removing its directory itself, then reinstalling it at the home directory using pythone some-IJava-release/install.py --user