r - jupyter-client has to be installed but “jupyter kernelspec --version” exited with code 127

Question

I have already installed Jupyter notebook in my ubuntu 16.04 machine. In jupyter notebook there is by default python installed. Now I want to use R from jupyter notebook.

To do so I followed IRkernel installation link and run below commands:

install.packages('devtools')

devtools::install_github('IRkernel/IRkernel')

But when I run IRkernel::installspec() command it shows below error:

jupyter-client has to be installed but “jupyter kernelspec --version” exited with code 127

I am now confused why this error occurs.

question from:https://stackoverflow.com/questions/44056164/jupyter-client-has-to-be-installed-but-jupyter-kernelspec-version-exited-wit

Answer 1

Running this command from RStudio will show this error. When you run this command from command line/ terminal then everything will be fine.

So just type R from your command line.

Then Run below commands:

install.packages('devtools')

devtools::install_github('IRkernel/IRkernel')

IRkernel::installspec()