Q:

pgfplots cannot read file

I am trying to use package pgfplots to read data from a file.  This code is compiled on MacTeX 2014 under OSX 10.8.  
Here is a snippet from the file in question: etotal.dat
T       Y
0.7618  0.060
0.7818  0.061
0.8618  0.062
0.8818  0.061
0.9018  0.061
0.9218  0.060
0.9418  0.058
0.9618  0.057
0.9818  0.055

And here is my MWE: 
\documentclass{standalone}
\usepackage{pgfplots}
\pgfplotsset{width=10cm,compat=1.10}

\begin{document}

\begin{tikzpicture}
\begin{axis}[%
    xmin=0,
    xmax=15.0,
    ymin=0,
    ymax=0.1,
    ]
\addplot table[x=T,y=Y]{etotal.dat};
\end{axis}
\end{tikzpicture}

\end{document}

This results in the error: Package pfgplots Error: Could not read table file 'etotal.dat'.  In case you intended to provide inline data: maybe TeX screwed upon your end-of-lines? ... 
I'm not exactly sure what is wrong.  There doesn't seem to be anything amiss with my code. 
I am aware that there is another question here with a similar title; but that problem was a simple typo.  This is not the same problem.  

A:

The error message is generated if pgfplots cannot open  the input file. 
That, in turn, indicates search path problems of some sort: apparently, it did not find the file. 
Please ensure that it is on the search path.  Is it in the same directory of your .tex file?  If not, is it on the path for TEXINPUTS? 