Comment 3 for bug 168796

Im using the build from 27th Dec and still get error:

Traceback (most recent call last):

  File "share\extensions\summersnight.py", line 78, in <module>

    e.affect()

  File "C:\Program Files\Inkscape\share\extensions\inkex.py", line 153, in affect

    self.effect()

  File "share\extensions\summersnight.py", line 51, in effect

    self.q[query] = float(f.read())

ValueError: empty string for float()

On 16848 on fedora the Envelope works but I get this:

** (inkscape:9437): WARNING **: Format autodetect failed. The file is being opened as SVG.

** (inkscape:9438): WARNING **: Format autodetect failed. The file is being opened as SVG.

** (inkscape:9439): WARNING **: Format autodetect failed. The file is being opened as SVG.

** (inkscape:9440): WARNING **: Format autodetect failed. The file is being opened as SVG.