[Qgis-user] QGIS 1.6 project causing 1.7 to crash

[Nathan Woodrow]

How many layers do you have in this project file?  And can you load the file
by itself?

- Nathan

On Tue, Oct 11, 2011 at 10:35 PM, Ross Purves <RMP at lutonsfc.ac.uk> wrote:

> Hi Nathan,
>
> Very many thanks for the quick response! OK, running from the command line
> gives me slight more info, to be sure:
>
> [Tue Oct 11 13:34:26 RMPT43:NewMapMarch2011 ]$ qgis
> VectorBackgroundMapMarch2011
> Warning: loading of qgis translation failed
> [/usr/share/qgis/i18n//qgis_en_GB]
> Warning: loading of qt translation failed
> [/usr/share/qt4/translations/qt_en_GB]
> Warning: Couldn't load Python support library: Cannot load library
> /usr/lib/qgispython: (/usr/lib/libqgispython.so: cannot open shared object
> file: No such file or directory)
> Critical: Data source is invalid
> Critical:
>
> Additionally, when I start QGIS this way I get a pop up window within the
> graphical interface that says:
>
> The layer
> /mnt/bunker/ross/Research/PhD/NewMapMarch2011/VectorBackgroundMapMarch2011
> is not a valid layer and can not be added to the map
>
> The strange thing is that I'm pretty certain there is no problem with the
> project file. It's timestamp reads 22 April, when I last worked on it. I.e.
> the version of QGIS has changed but my file has remained constant.
>
> Many thanks!
> Ross
> ________________________________________
> From: Nathan Woodrow [madmanwoo at gmail.com]
> Sent: 11 October 2011 13:26
> To: Purves Ross
> Cc: qgis-user at lists.osgeo.org
> Subject: Re: [Qgis-user] QGIS 1.6 project causing 1.7 to crash
>
> Hi Ross,
>
> That sounds a bit strange.  Can you start QGIS from the terminal and see
> what the output is when it locks up.
>
> - Nathan
>
> On Tue, Oct 11, 2011 at 10:19 PM, Purves Ross <rmpurves at ntlworld.com
> <mailto:rmpurves at ntlworld.com>> wrote:
> Hi there,
>
> I've updated my Ubuntu 10.10 installation to use QGIS 1.7. I put a lot of
> work into a project using QGIS 1.6 but it won't open in 1.7. The layers all
> appear but then the screen freezes as though QGIS is rendering the resulting
> map forever.
>
> A bit of googling revealed that there was a bug at some point which
> required the placement of 'gdal' between all <provider></provider> tags in
> the project XML file in a scenario like this. However, I tried this and it
> didn't work. I also have read various posts that say the use of 'on the fly'
> project appeared to cause problems going between 1.6 and 1.7. The project in
> question does indeed use on the fly projection.
>
> As a final note, I have an ECW raster layer in this map that requires the
> modified GDAL to work. I thought that the crash might be to do with the
> upgrade having removed my modified version of GDAL. I therefore recompiled
> it all and have checked to see that my version of 1.7 can now read ECW files
> and it can (when they are presented a a fresh layer and not as part of the
> problematic project).
>
> This is a really, really important project to me and I do need to get it
> back if at all possible. Please can anyone help?
>
> Very many thanks!
> Ross Purves
>
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