version_information error minimum example

verion.ipynb

{
 "cells": [
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   "cell_type": "code",
   "execution_count": 2,
   "metadata": {
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    "run_control": {
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    }
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "The version_information extension is already loaded. To reload it, use:\n",
      "  %reload_ext version_information\n"
     ]
    },
    {
     "data": {
      "application/json": "{\"Software versions\": [{\"module\": \"Python\", \"version\": \"3.4.0 64bit [GCC 4.8.2]\"}, {\"module\": \"IPython\", \"version\": \"1.2.1\"}, {\"module\": \"OS\", \"version\": \"Linux 3.16.0 33 generic x86_64 with LinuxMint 17.1 rebecca\"}]}",
      "text/html": [
       "<table><tr><th>Software</th><th>Version</th></tr><tr><td>Python</td><td>3.4.0 64bit [GCC 4.8.2]</td></tr><tr><td>IPython</td><td>1.2.1</td></tr><tr><td>OS</td><td>Linux 3.16.0 33 generic x86_64 with LinuxMint 17.1 rebecca</td></tr><tr><td colspan='2'>Wed Oct 14 17:39:09 2015 CDT</td></tr></table>"
      ],
      "text/latex": [
       "\\begin{tabular}{|l|l|}\\hline\n",
       "{\\bf Software} & {\\bf Version} \\\\ \\hline\\hline\n",
       "Python & 3.4.0 64bit [GCC 4.8.2] \\\\ \\hline\n",
       "IPython & 1.2.1 \\\\ \\hline\n",
       "OS & Linux 3.16.0 33 generic x86\\_64 with LinuxMint 17.1 rebecca \\\\ \\hline\n",
       "\\hline \\multicolumn{2}{|l|}{Wed Oct 14 17:39:09 2015 CDT} \\\\ \\hline\n",
       "\\end{tabular}\n"
      ],
      "text/plain": [
       "Software versions\n",
       "Python 3.4.0 64bit [GCC 4.8.2]\n",
       "IPython 1.2.1\n",
       "OS Linux 3.16.0 33 generic x86_64 with LinuxMint 17.1 rebecca\n",
       "Wed Oct 14 17:39:09 2015 CDT"
      ]
     },
     "execution_count": 2,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "%load_ext version_information\n",
    "%version_information"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "Refresh (F5) should yield similar prompt stating **Notebook validation failed**"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": []
  }
 ],
 "metadata": {
  "kernelspec": {
   "display_name": "IPython (Python 3)",
   "language": "python",
   "name": "python3"
  },
  "language_info": {
   "name": "python",
   "version": "3.4.0"
  }
 },
 "nbformat": 4,
 "nbformat_minor": 0
}