必须安装jupyter-client，但是退出了"jupyter kernelspec --version"，代码为127 [英] jupyter-client has to be installed but “jupyter kernelspec --version” exited with code 127

问题描述

我已经在Ubuntu 16.04机器上安装了Jupyter笔记本电脑.在jupyter笔记本中，默认情况下安装了python.现在我想从jupyter笔记本中使用R.

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.

为此，我遵循了 IRkernel安装链接，并运行以下命令:

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

install.packages('devtools')

devtools::install_github('IRkernel/IRkernel')

但是当我跑步时 IRkernel::installspec()命令，它显示以下错误:

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

必须安装jupyter-client，但是退出了"jupyter kernelspec --version"，代码为127

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

我现在很困惑为什么会发生此错误.

I am now confused why this error occurs.

推荐答案

从RStudio运行此命令将显示此错误.当您从命令行/终端运行此命令时，一切都会好起来.

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

因此，只需在命令行中输入R.

So just type R from your command line.

然后运行以下命令:

install.packages('devtools')

devtools::install_github('IRkernel/IRkernel')

IRkernel::installspec()

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