TechQA.

kernel dies when creating iruby notebook

1.3k views Asked by At

I am completely noob in SciRuby. For the first time I am using SciRuby. I am following this video to get an overview of how to use SciRuby and plot graphs, charts etc. When I go to localhost:8888 and I create new notebooks from right drop down(Ruby 2.2.3)

I am in home(~) dir

notebook

Then at first it says Kernel connecting and then dead kernel message pops up again and again(within gap of few seconds). Nothing happens and the commands I am writing seems to have no effect. Please get this issue solved thanks a lot.

kernel

$ iruby notebook
Could not load bundler: Could not locate Gemfile or .bundle/ directory
[TerminalIPythonApp] WARNING | Subcommand `ipython notebook` is deprecated and will be removed in future versions.
[TerminalIPythonApp] WARNING | You likely want to use `jupyter notebook`... continue in 5 sec. Press Ctrl-C to quit now.
[I 01:13:51.976 NotebookApp] Serving notebooks from local directory: /home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin
[I 01:13:51.976 NotebookApp] 0 active kernels 
[I 01:13:51.976 NotebookApp] The Jupyter Notebook is running at: http://localhost:8888/
[I 01:13:51.977 NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).
Gtk-Message: Failed to load module "pantheon-filechooser-module"

(firefox:8219): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",

(firefox:8219): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",

(firefox:8219): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",

(firefox:8219): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",

(firefox:8219): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
Gtk-Message: Failed to load module "canberra-gtk-module"
[I 01:14:32.931 NotebookApp] 302 GET / (127.0.0.1) 0.69ms
[I 01:14:39.766 NotebookApp] Creating new file in 
[I 01:14:53.999 NotebookApp] Creating new notebook in 
[I 01:14:56.223 NotebookApp] Kernel started: 463b14e0-9f3d-49c0-bd3d-6dd19e7b43d9
W, [2016-03-13T01:14:56.726775 #8272]  WARN -- : Could not load bundler: Could not locate Gemfile or .bundle/ directory

/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/bundler-1.11.2/lib/bundler.rb:163:in `rescue in root'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/bundler-1.11.2/lib/bundler.rb:159:in `root'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/bundler-1.11.2/lib/bundler.rb:71:in `bundle_path'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/bundler-1.11.2/lib/bundler.rb:401:in `configure_gem_home_and_path'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/bundler-1.11.2/lib/bundler.rb:57:in `configure'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/bundler-1.11.2/lib/bundler.rb:118:in `definition'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:109:in `check_bundler'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:67:in `run_kernel'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:34:in `run'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/bin/iruby:5:in `<top (required)>'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/iruby:23:in `load'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/iruby:23:in `<main>'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/ruby_executable_hooks:15:in `eval'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/ruby_executable_hooks:15:in `<main>'
You should install rbczmq or ffi_rzmq before running iruby notebook. See README.
F, [2016-03-13T01:14:56.821066 #8272] FATAL -- : Kernel died: uninitialized constant IRuby::Kernel::Session
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/kernel.rb:18:in `initialize'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:70:in `new'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:70:in `run_kernel'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:34:in `run'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/bin/iruby:5:in `<top (required)>'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/iruby:23:in `load'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/iruby:23:in `<main>'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/ruby_executable_hooks:15:in `eval'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/ruby_executable_hooks:15:in `<main>'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/kernel.rb:18:in `initialize': uninitialized constant IRuby::Kernel::Session (NameError)
    from /home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:70:in `new'
    from /home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:70:in `run_kernel'
    from /home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:34:in `run'
    from /home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/bin/iruby:5:in `<top (required)>'
    from /home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/iruby:23:in `load'
    from /home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/iruby:23:in `<main>'
    from /home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/ruby_executable_hooks:15:in `eval'
    from /home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/ruby_executable_hooks:15:in `<main>'
[I 01:14:59.223 NotebookApp] KernelRestarter: restarting kernel (1/5)
W, [2016-03-13T01:14:59.619447 #8309]  WARN -- : Could not load bundler: Could not locate Gemfile or .bundle/ directory
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/bundler-1.11.2/lib/bundler.rb:163:in `rescue in root'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/bundler-1.11.2/lib/bundler.rb:159:in `root'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/bundler-1.11.2/lib/bundler.rb:71:in `bundle_path'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/bundler-1.11.2/lib/bundler.rb:401:in `configure_gem_home_and_path'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/bundler-1.11.2/lib/bundler.rb:57:in `configure'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/bundler-1.11.2/lib/bundler.rb:118:in `definition'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:109:in `check_bundler'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:67:in `run_kernel'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:34:in `run'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/bin/iruby:5:in `<top (required)>'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/iruby:23:in `load'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/iruby:23:in `<main>'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/ruby_executable_hooks:15:in `eval'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/ruby_executable_hooks:15:in `<main>'
You should install rbczmq or ffi_rzmq before running iruby notebook. See README.
F, [2016-03-13T01:14:59.696087 #8309] FATAL -- : Kernel died: uninitialized constant IRuby::Kernel::Session
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/kernel.rb:18:in `initialize'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:70:in `new'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:70:in `run_kernel'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:34:in `run'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/bin/iruby:5:in `<top (required)>'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/iruby:23:in `load'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/iruby:23:in `<main>'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/ruby_executable_hooks:15:in `eval'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/ruby_executable_hooks:15:in `<main>'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/kernel.rb:18:in `initialize': uninitialized constant IRuby::Kernel::Session (NameError)
    from /home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:70:in `new'
    from /home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:70:in `run_kernel'
    from /home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:34:in `run'
    from /home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/bin/iruby:5:in `<top (required)>'
    from /home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/iruby:23:in `load'
    from /home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/iruby:23:in `<main>'
    from /home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/ruby_executable_hooks:15:in `eval'
    from /home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/ruby_executable_hooks:15:in `<main>'
[I 01:15:02.231 NotebookApp] KernelRestarter: restarting kernel (2/5)
W, [2016-03-13T01:15:02.619460 #8312]  WARN -- : Could not load bundler: Could not locate Gemfile or .bundle/ directory
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/bundler-1.11.2/lib/bundler.rb:163:in `rescue in root'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/bundler-1.11.2/lib/bundler.rb:159:in `root'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/bundler-1.11.2/lib/bundler.rb:71:in `bundle_path'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/bundler-1.11.2/lib/bundler.rb:401:in `configure_gem_home_and_path'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/bundler-1.11.2/lib/bundler.rb:57:in `configure'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/bundler-1.11.2/lib/bundler.rb:118:in `definition'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:109:in `check_bundler'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:67:in `run_kernel'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:34:in `run'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/bin/iruby:5:in `<top (required)>'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/iruby:23:in `load'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/iruby:23:in `<main>'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/ruby_executable_hooks:15:in `eval'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/ruby_executable_hooks:15:in `<main>'
You should install rbczmq or ffi_rzmq before running iruby notebook. See README.
F, [2016-03-13T01:15:02.703792 #8312] FATAL -- : Kernel died: uninitialized constant IRuby::Kernel::Session
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/kernel.rb:18:in `initialize'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:70:in `new'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:70:in `run_kernel'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:34:in `run'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/bin/iruby:5:in `<top (required)>'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/iruby:23:in `load'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/iruby:23:in `<main>'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/ruby_executable_hooks:15:in `eval'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/ruby_executable_hooks:15:in `<main>'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/kernel.rb:18:in `initialize': uninitialized constant IRuby::Kernel::Session (NameError)
    from /home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:70:in `new'
    from /home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:70:in `run_kernel'
    from /home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:34:in `run'
    from /home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/bin/iruby:5:in `<top (required)>'
    from /home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/iruby:23:in `load'
    from /home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/iruby:23:in `<main>'
    from /home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/ruby_executable_hooks:15:in `eval'
    from /home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/ruby_executable_hooks:15:in `<main>'
[I 01:15:05.239 NotebookApp] KernelRestarter: restarting kernel (3/5)
W, [2016-03-13T01:15:05.714227 #8316]  WARN -- : Could not load bundler: Could not locate Gemfile or .bundle/ directory
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/bundler-1.11.2/lib/bundler.rb:163:in `rescue in root'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/bundler-1.11.2/lib/bundler.rb:159:in `root'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/bundler-1.11.2/lib/bundler.rb:71:in `bundle_path'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/bundler-1.11.2/lib/bundler.rb:401:in `configure_gem_home_and_path'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/bundler-1.11.2/lib/bundler.rb:57:in `configure'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/bundler-1.11.2/lib/bundler.rb:118:in `definition'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:109:in `check_bundler'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:67:in `run_kernel'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:34:in `run'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/bin/iruby:5:in `<top (required)>'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/iruby:23:in `load'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/iruby:23:in `<main>'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/ruby_executable_hooks:15:in `eval'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/ruby_executable_hooks:15:in `<main>'
You should install rbczmq or ffi_rzmq before running iruby notebook. See README.
F, [2016-03-13T01:15:05.788401 #8316] FATAL -- : Kernel died: uninitialized constant IRuby::Kernel::Session
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/kernel.rb:18:in `initialize'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:70:in `new'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:70:in `run_kernel'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:34:in `run'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/bin/iruby:5:in `<top (required)>'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/iruby:23:in `load'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/iruby:23:in `<main>'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/ruby_executable_hooks:15:in `eval'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/ruby_executable_hooks:15:in `<main>'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/kernel.rb:18:in `initialize': uninitialized constant IRuby::Kernel::Session (NameError)
    from /home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:70:in `new'
    from /home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:70:in `run_kernel'
    from /home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:34:in `run'
    from /home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/bin/iruby:5:in `<top (required)>'
    from /home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/iruby:23:in `load'
    from /home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/iruby:23:in `<main>'
    from /home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/ruby_executable_hooks:15:in `eval'
    from /home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/ruby_executable_hooks:15:in `<main>'
[W 01:15:06.731 NotebookApp] Timeout waiting for kernel_info reply from 463b14e0-9f3d-49c0-bd3d-6dd19e7b43d9
[I 01:15:08.247 NotebookApp] KernelRestarter: restarting kernel (4/5)
WARNING:root:kernel 463b14e0-9f3d-49c0-bd3d-6dd19e7b43d9 restarted
W, [2016-03-13T01:15:08.701757 #8318]  WARN -- : Could not load bundler: Could not locate Gemfile or .bundle/ directory
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/bundler-1.11.2/lib/bundler.rb:163:in `rescue in root'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/bundler-1.11.2/lib/bundler.rb:159:in `root'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/bundler-1.11.2/lib/bundler.rb:71:in `bundle_path'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/bundler-1.11.2/lib/bundler.rb:401:in `configure_gem_home_and_path'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/bundler-1.11.2/lib/bundler.rb:57:in `configure'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/bundler-1.11.2/lib/bundler.rb:118:in `definition'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:109:in `check_bundler'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:67:in `run_kernel'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:34:in `run'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/bin/iruby:5:in `<top (required)>'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/iruby:23:in `load'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/iruby:23:in `<main>'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/ruby_executable_hooks:15:in `eval'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/ruby_executable_hooks:15:in `<main>'
You should install rbczmq or ffi_rzmq before running iruby notebook. See README.
F, [2016-03-13T01:15:08.779382 #8318] FATAL -- : Kernel died: uninitialized constant IRuby::Kernel::Session
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/kernel.rb:18:in `initialize'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:70:in `new'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:70:in `run_kernel'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:34:in `run'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/bin/iruby:5:in `<top (required)>'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/iruby:23:in `load'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/iruby:23:in `<main>'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/ruby_executable_hooks:15:in `eval'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/ruby_executable_hooks:15:in `<main>'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/kernel.rb:18:in `initialize': uninitialized constant IRuby::Kernel::Session (NameError)
    from /home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:70:in `new'
    from /home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:70:in `run_kernel'
    from /home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:34:in `run'
    from /home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/bin/iruby:5:in `<top (required)>'
    from /home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/iruby:23:in `load'
    from /home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/iruby:23:in `<main>'
    from /home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/ruby_executable_hooks:15:in `eval'
    from /home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/ruby_executable_hooks:15:in `<main>'
[W 01:15:11.256 NotebookApp] KernelRestarter: restart failed
[W 01:15:11.257 NotebookApp] Kernel 463b14e0-9f3d-49c0-bd3d-6dd19e7b43d9 died, removing from map.
ERROR:root:kernel 463b14e0-9f3d-49c0-bd3d-6dd19e7b43d9 restarted failed!
[W 01:15:11.329 NotebookApp] Kernel deleted before session
[W 01:15:11.330 NotebookApp] 410 DELETE /api/sessions/2709e672-f333-42d4-a84b-0c3ab68d3864 (127.0.0.1) 2.11ms referer=http://localhost:8888/notebooks/Untitled.ipynb?kernel_name=ruby
ryan/.rvm/gems/ruby-2.2.3/gems/bundler-1.11.2/lib/bundler.rb:159:in `root'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/bundler-1.11.2/lib/bundler.rb:71:in `bundle_path'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/bundler-1.11.2/lib/bundler.rb:401:in `configure_gem_home_and_path'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/bundler-1.11.2/lib/bundler.rb:57:in `configure'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/bundler-1.11.2/lib/bundler.rb:118:in `definition'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:109:in `check_bundler'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:67:in `run_kernel'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:34:in `run'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/bin/iruby:5:in `<top (required)>'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/iruby:23:in `load'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/iruby:23:in `<main>'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/ruby_executable_hooks:15:in `eval'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/ruby_executable_hooks:15:in `<main>'
You should install rbczmq or ffi_rzmq before running iruby notebook. See README.
F, [2016-03-13T01:15:02.703792 #8312] FATAL -- : Kernel died: uninitialized constant IRuby::Kernel::Session
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/kernel.rb:18:in `initialize'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:70:in `new'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:70:in `run_kernel'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:34:in `run'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/bin/iruby:5:in `<top (required)>'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/iruby:23:in `load'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/iruby:23:in `<main>'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/ruby_executable_hooks:15:in `eval'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/ruby_executable_hooks:15:in `<main>'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/kernel.rb:18:in `initialize': uninitialized constant IRuby::Kernel::Session (NameError)
    from /home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:70:in `new'
    from /home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:70:in `run_kernel'
    from /home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:34:in `run'
    from /home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/bin/iruby:5:in `<top (required)>'
    from /home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/iruby:23:in `load'
    from /home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/iruby:23:in `<main>'
    from /home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/ruby_executable_hooks:15:in `eval'
    from /home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/bin/ruby_executable_hooks:15:in `<main>'
[I 01:15:05.239 NotebookApp] KernelRestarter: restarting kernel (3/5)
W, [2016-03-13T01:15:05.714227 #8316]  WARN -- : Could not load bundler: Could not locate Gemfile or .bundle/ directory
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/bundler-1.11.2/lib/bundler.rb:163:in `rescue in root'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/bundler-1.11.2/lib/bundler.rb:159:in `root'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/bundler-1.11.2/lib/bundler.rb:71:in `bundle_path'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/bundler-1.11.2/lib/bundler.rb:401:in `configure_gem_home_and_path'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/bundler-1.11.2/lib/bundler.rb:57:in `configure'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/bundler-1.11.2/lib/bundler.rb:118:in `definition'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:109:in `check_bundler'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:67:in `run_kernel'
/home/abhimanyuaryan/.rvm/gems/ruby-2.2.3/gems/iruby-0.2.8/lib/iruby/command.rb:34:in `run'
/home/abhimanyuarya[I 01:15:53.124 NotebookApp] Saving file at /Untitled.ipynb
sciruby
Original Q&A
3

There are 3 answers

0
Translunar On BEST ANSWER

It was Ivan's answer that tipped me off.

In addition to declaring the iruby and nyaplot gems, you need to declare the appropriate ZeroMQ interface.

So, in your Gemfile,

gem 'iruby'
gem 'nyaplot'
gem 'rbczmq' # or 'ffi-rzmq'
# any other gems you want to use should go here too

Alternatively, if you're working on a project with a gemspec, you need the following two lines in the spec:

gem.add_development_dependency 'iruby', '~>0.2'
gem.add_development_dependency 'rbczmq'

And also one for nyaplot if that's what you're using.

0
Akash Giri On

This method helped me:
I had installed ruby kernel in jupyter notebook following SciRuby's GitHub page and it worked well that day. But after some days, I again ran it and the kernel started getting dead.
I don't know the exact reason behind this but I again followed the same method and it installed some extra gems and it worked!!
Follow this 

sudo apt install libtool libffi-dev ruby ruby-dev make
sudo apt install libzmq3-dev libczmq-dev
gem install cztop iruby
iruby register --force

Run the notebook again

jupyter-notebook
5
Ivan Evgrafov On

Try to add a file named Gemfile into the folder, which you're using to run iruby, with the following contents:

gem 'iruby'
gem 'nyaplot'
# any other gems you want to use should go here too

Related Questions in SCIRUBY

Popular Questions

Popular Tags

javascript python java c# php android html jquery c++ css ios sql mysql r reactjs node.js arrays c asp.net json python-3.x ruby-on-rails .net sql-server swift django angular objective-c pandas excel

Trending Questions