[Qgis-user] Vector / clip fails

[antonio scotti]

Hi,I am trying to obtain a clipping of a contour map into a poligon by usig the command Vector->geoprocessing tools ->clip in qgis 2.18.13 freshly installed on Ubuntu 14.04.
But when I run the command I get the message: "NameError: global name 'features' is not defined"
Is this error due to some coding glitch in the new release? What is the global name Features referring to???? Do I have to bother?
Regards
 =============================================== 
PermaCultura-es http://www.permacultura-es.org
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/qgis-user/attachments/20170919/7de68514/attachment.html>