Thanks Derula,
I gave it a try with your suggestion, but unfortunately still didn't get a conversion.
Here are the rresults:
Macintosh:sketchxmlapi Hobbes$ ruby svg2sketchxml.rb -v 1.svg 1.xml
./planeshift_sketch_xml.rb:143: warning: parenthesize argument(s) for future version
SVG2SketchXML 0.3
Simple SVG path to PlaneShift Sketch XML converter
Copyright (c) 2009 by Simon Paridon
Converting 1.svg...
Opening SVG...
Converting SVG...
Processing group 'Layer_1'...
Converting paths...
Converting path 'M74.1,180C206.8,98.7,72.5-71.1,183.3,33.7c0,0,67.5-77.1,112,30.7
c44.5,107.8-189.2,91.6-165.1,162c24.1,70.4,36.1,252.4-41,132.5C12.1,239-21.2,198.5,111.2,117.2' with color '0'...
Reading set of points from SVG...
Got Vector[74.1, 180.0, 1]. Deciding what to do with them...
Starting new subpath.
Reading set of points from SVG...
Got Vector[206.8, 98.7, 1]Vector[72.5, 183.3, 1]Vector[33.7, 0.0, 1]. Deciding what to do with them...
Applying transformation matrix to points...
Adding cubic curve from Vector[74.1, 180.0, 1] to Vector[33.7, 0.0, 1].
Reading set of points from SVG...
Got Vector[0.0, 0.0, 1]Vector[67.5, 112.0, 1]Vector[30.7, 0.0, 1]. Deciding what to do with them...
Applying transformation matrix to points...
Adding cubic curve from Vector[33.7, 0.0, 1] to Vector[64.4, 0.0, 1].
Reading set of points from SVG...
Got Vector[44.5, 107.8, 1]Vector[91.6, 162.0, 1]. Deciding what to do with them...
Applying transformation matrix to points...
Adding cubic curve from Vector[64.4, 0.0, 1] to .
svg2sketchxml.rb:480:in `parse_path': undefined method `x' for nil:NilClass (NoMethodError)
from svg2sketchxml.rb:289:in `parse_group'
from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rexml/element.rb:891:in `each'
from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rexml/xpath.rb:53:in `each'
from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rexml/element.rb:891:in `each'
from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rexml/element.rb:393:in `each_element'
from svg2sketchxml.rb:288:in `parse_group'
from svg2sketchxml.rb:103:in `convert'
from svg2sketchxml.rb:77:in `convert'
from svg2sketchxml.rb:530
from svg2sketchxml.rb:9:in `each_pair'
from svg2sketchxml.rb:8:in `upto'
from svg2sketchxml.rb:8:in `each_pair'
from svg2sketchxml.rb:525
I'll try the application you suggested next.