[Qgis-user] Help with Arrows plugin

Tiago Tomé tiagotome at gmail.com
Fri Nov 20 05:33:56 PST 2015


Hello everyone,

I've been trying to use the Arrrows plugin, but I'm getting a Python error
message when I run it. I'm not versed in Python, so I could really use some
help understanding what's the problem and how to solve it. Here's the error
message:

Traceback (most recent call last): File
"C:/user/username/.qgis2/python/plugins\arrows\arrows.py", line 79, in
run_set self.draw_arrows() File
"C:/U.../.qgis2/python/plugins\arrows\arrows.py", line 128, in draw_arrows
width = attributes[self.conf["arrow_width_field"]] *
float(unicode(self.conf["arrow_width_factor"])) TypeError: unsupported
operand type(s) for *: 'QPyNullVariant' and 'float'

Thank you very much in advance!
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