ERROR: execute[install-pip] (python::pip line 56) had an error: Mixlib::ShellOut::ShellCommandFailed: Expected process to exit with [0], but received '1'

Editing the file:

Mining-the-Social-Web-2nd-Edition/deploy/cookbooks/python/attributes/default.rb

on your machine and changing the line:

default['python']['pip_script_url'] = 'https://raw.github.com/pypa/pip/master/contrib/get-pip.py'

to:

default['python']['pip_script_url'] = 'https://bootstrap.pypa.io/get-pip.py'

should fix the problem.

More,

Google Code is now in archive mode, so the direct link to layercake-python.tar.bz2 no longer works. To work around the issue:

• Download the fuxi source archive from https://storage.googleapis.com/google-code-archive-source/v2/code.google.com/fuxi/source-archive.zip
• Extract the file fuxi/layercake-python.tar.bz2 and place it in the top-level directory that contains your Vagrantfile.
• In deploy/cookbooks/mtsw2e/recipes/default.rb change the line"https://fuxi.googlecode.com/hg/layercake-python.tar.bz2", to:

  "/vagrant/layercake-python.tar.bz2"

vagrantfile giving error of not having capability to install chef latest

Please add "chef.install = false" in the vagrantfile otherwise it is giving error of not having capability to install

Latex error. Unknown graphics extension: eps

Solution
compile using latex->ps->pdf option instead of latex->pdf

latex: equation within the sentence

\( and \)
Replace G = (V, E)
with

\(G = (V, E) \)

using track changes in latex using changes package

Example from the link

http://tex.stackexchange.com/questions/65453/track-changes-in-latex

documentclass{article}

\usepackage{changes}
\usepackage{lipsum}% <- For dummy text
\definechangesauthor[name={Per cusse}, color=orange]{per}
\setremarkmarkup{(#2)}


\begin{document}
\lipsum[1-7]

This is \added[id=per,remark={we need this}]{new} text.
This is \added[id=per,remark={has to be in it}]{new} text.
This is \deleted[id=per,remark=obsolete]{unnecessary}text.
This is \replaced[id=per]{nice}{bad} text.

This is \added[remark={we need this}]{new} text.
This is \added[remark={has to be in it}]{new} text.
This is \deleted[remark=obsolete]{unnecessary}text.
This is \replaced{nice}{bad} text.


\listofchanges
\end{document}

And the nice thing is that if you supply the final option to the package declaration that is \usepackage[final]{changes} it clears the traces of changes made by the authors and respecting the last changes. 

Fatal fontspec error: "cannot-use-pdftex" MikTex

Solution
Check the dropdown in Taxicenter showing latex->pdf and change it to lualatex ->pdf

that vs which

That for restrictive clause
and which is for non restrictive clause

The book that addresses this topic is a usage dictionary
The book, which is blue, is a usage dictionary

"which is blue" is not restrictive to the topic

Reference:
http://www.merriam-webster.com/video/that-vs-which