tempo failure

[pabuhr]

This lilypond code snippet:

%% Generated by lilypond-book.py
%% Options: 
[exampleindent=10.16\mm,fragment,indent=0\mm,line-width=160\mm,quote,relative=1]
\include "lilypond-book-preamble.ly"


% ****************************************************************
% Start cut-&-pastable-section
% ****************************************************************



\paper {
  indent = 0\mm
  line-width = 160\mm
  % offset the left padding, also add 1mm as lilypond creates cropped
  % images with a little space on the right
  line-width = #(- line-width (* mm  3.000000) (* mm 1))
  line-width = 160\mm - 2.0 * 10.16\mm
  % offset the left padding, also add 1mm as lilypond creates cropped
  % images with a little space on the right
  line-width = #(- line-width (* mm  3.000000) (* mm 1))
}

\layout {
  
}



\relative c'
{


% ****************************************************************
% ly snippet contents follows:
% ****************************************************************
\sourcefileline 1274
\tempo 4 = 40 ~ 46
c4. e8 a4 g
b,2 d4 r



% ****************************************************************
% end ly snippet
% ****************************************************************
}

generates this error:

Compilation started at Mon Nov 11 22:06:59
lilypond --ps test1.ly
GNU LilyPond 2.17.28
Processing `test1.ly'
Parsing...
test1.ly:1275:15: error: syntax error, unexpected EVENT_IDENTIFIER
\tempo 4 = 40 
              ~ 46
test1.ly:1267:1: error: errors found, ignoring music expression

\relative c'
fatal error: failed files: "test1.ly"

Compilation exited abnormally with code 1 at Mon Nov 11 22:06:59