iSpy gives a misleading error message if a network connection is unavailble

[t-linden]

If iSpy is started without arguments and with no network connection, then it gives the error messages:
Error while opening files
Unable to parse file /tmp/qt.Vs3286
Maybe it got truncated?
This is because it cannot open the geometry file over the network.
http://iguana.web.cern.ch/iguana/ispy/igfiles/other/cms-geometry.ig
It would be preferable if iSpy could give an error message like "unable to open geometry file" and the URL where it is looking for it.
When the issue is known it is easy to work around by having a working network connection or downloading the geometry to the local harddisk and giving it as an argument to iSpy.

Tomas Lindén