[MapProxy] Mapnik v3: N6mapnik12value_holderE

Oliver Tonnhofer olt at omniscale.de
Mon Oct 26 00:39:56 PDT 2015


the Python bindings for Mapnik are not longer part of the official release. You need to upgrade the bindings manually. See https://github.com/mapnik/python-mapnik

You can check if the installation works with:

python -c 'import mapnik; print mapnik.mapnik_version()'


Oliver Tonnhofer  | Omniscale GmbH & Co KG  | http://omniscale.com
OpenStreetMap WMS and tile services         | http://maps.omniscale.com

> On 25.10.2015, at 16:18, Tobias Wendorff <tobias.wendorff at tu-dortmund.de> wrote:
> Hi there,
> I've just upgraded my testserver from Mapnik v2 to Mapnik v3 on Jessie.
> I didn't change anything in my MapProxy configuration or Mapnik's XML,
> but I'm getting this WMS error:
> <ServiceException>Could not get any sources: unary dispatch:
> FAIL N6mapnik12value_holderE encountered during parsing of layer
> 'leisure' in Layer at line 27 of 'tobwen_style.xml'</ServiceException>
> Here is the mapfile: http://pastie.org/pastes/10506566/text
> For reading PG as datasource nothing has changed since Mapnik v2.
> Running the query directly against psql worked as expected.
> I'm running MapProxy-1.8.2a0.post20151025 with Spawning and nginx.
> Best regards,
> Tobias
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