Unable to load IRKernel in Jupyter notebook
I'm pretty new to the forum, so I'm sorry if this question has already been answered. I looked around, and although I saw that some had similar issues, I couldn't find the solution to my problem on any previous posts. So - here goes...
I'm running Mac OS X 10.11.5, Jupyter notebook version 4.2.1, R version 3.2.2
I installed the R kernel for Jupyter notebook with the following command -
conda install -c r r-irkernel
Now, when I launch Jupyter notebook, I see 'R' appears as one of the options in the drop down menu on the right hand side under 'notebooks.' However, when I try to create an R notebook, the kernel crashes and I get the following error in terminal:
WARNING:root:kernel b42781ab-ebb1-45eb-8a54-d3801106fb94 restarted
Error: .onLoad failed in loadNamespace() for 'pbdZMQ', details:
call: dyn.load(file, DLLpath = DLLpath, ...)
error: unable to load shared object '/Users/avislova/anaconda/lib/R/library/pbdZMQ/libs/pbdZMQ.so':
dlopen(/Users/avislova/anaconda/lib/R/library/pbdZMQ/libs/pbdZMQ.so, 6): Library not loaded: @rpath/libzmq.5.dylib
Referenced from: /Users/avislova/anaconda/lib/R/library/pbdZMQ/libs/pbdZMQ.so
Reason: image not found
Execution halted
[W 16:19:12.382 NotebookApp] KernelRestarter: restart failed
[W 16:19:12.382 NotebookApp] Kernel b42781ab-ebb1-45eb-8a54-d3801106fb94 died, removing from map.
ERROR:root:kernel b42781ab-ebb1-45eb-8a54-d3801106fb94 restarted failed!
[W 16:19:12.390 NotebookApp] Kernel deleted before session
[W 16:19:12.390 NotebookApp] 410 DELETE /api/sessions/2236e334-e33a-483b-87f3-31c461d4903b (::1) 1.32ms referer=http://localhost:8888/notebooks/Untitled5.ipynb?kernel_name=ir
Any idea where I can go from here?
Thank you!
I faced similar issue after I updated 'R' on my mac.
Below steps resolved my issue
install.packages(c('pbdZMQ', 'repr', 'devtools'))
devtools::install_github('IRkernel/IRdisplay')
devtools::install_github('IRkernel/IRkernel')
IRkernel::installspec()
For more details refer http://johnlaudun.org/20160521-irkernel-difficulties/
I frequently find myself reinstalling systems; further to @JeeZ, I always run the following in R at the end of my 'R install process':
install.packages(c("knitr", "ggplot2","rpart.plot","devtools","ggvis","psych","dplyr","tidyr","rvest","magrittr","testthat","roxygen2"),dependencies=TRUE)
#--> set Sweave to knitr
install.packages(c('rzmq','repr','IRkernel','IRdisplay', 'pbdZMQ'),
repos = c('http://irkernel.github.io/', getOption('repos')),
type = 'source')
IRkernel::installspec()
After installing devtools in R:
> install.packages("devtools")
Try installing the following from github:
> library("devtools")
> devtools::install_github("IRkernel/repr")
> devtools::install_github("IRkernel/IRdisplay")
> devtools::install_github("IRkernel/IRkernel")
The last line installed pdbZMQ for me, even though using install.packages("pdbZMQ") reported that none existed for any of the versions of RI tried.
More details and troubleshooting are available on github where I found this solution.
链接地址: http://www.djcxy.com/p/92576.html