[MapProxy] “could not get any sources: no image returned from source WMS” error in mapproxy demo

[Rahkonen Jukka]

Hi,

First question is that do you know if your WMS service is really working? Have you tested it EPSG:3857 projection with some WMS client like OpenJUMP?  The following line may of course be correct but it is not the most common place for the Proj library


CONFIG "PROJ_LIB" "/home/mwh/osm-demo/basemaps"


I suggest also to use DEBUG 5 in the mapfile and use a special MS_ERRORFILE so you can see what possibly goes wrong on the Mapserver side.  The requests which are sent by MapProxy you can find from the Apache access.log file.  Consider alto commenting out the MINSCALEDENOM because otherwise you will get an empty map when you zoom in. That should not be any error on MapProxy side but it may not be what you await from the service.

-Jukka Rahkonen-




Hishan Melanga wrote:



I am trying to connect my mapserver to MapProxy. Start of my map file is shown below

MAP

FONTSET "fonts.lst"

IMAGETYPE png

MAXSIZE 4000

SIZE 800 800

EXTENT -20000000 -20000000 20000000 20000000

UNITS meters

IMAGECOLOR 153 179 204

WEB

   METADATA

      "ows_enable_request" "*"

      "wms_srs" "EPSG:4326 EPSG:3857 EPSG:2154 EPSG:310642901 EPSG:4171 EPSG:310024802 EPSG:310915814 EPSG:310486805 EPSG:310702807 EPSG:310700806 EPSG:310547809 EPSG:310706808 EPSG:310642810 EPSG:310642801 EPSG:310642812 EPSG:310032811 EPSG:310642813 EPSG:2986"

      "labelcache_map_edge_buffer" "-10"

      "wms_title" "osm france"

   END

   IMAGEPATH "/tmp/ms_tmp/"

   IMAGEURL "/ms_tmp/"

END

DEBUG 1

CONFIG "MS_ERRORFILE" "stderr"

CONFIG "PROJ_LIB" "/home/mwh/osm-demo/basemaps"

PROJECTION

   "init=epsg:3857"

END

LAYER

   TYPE POLYGON

   STATUS ON

   GROUP "default"

   DEBUG 1

   NAME "land0"

   PROCESSING "APPROXIMATION_SCALE=full"

   PROJECTION

       "init=epsg:4326"

   END

   MINSCALEDENOM 332808204

   MAXSCALEDENOM 99999999999

   DATA "data/TM_WORLD_BORDERS-0.3.shp"

   CLASS

       STYLE

           COLOR 242 239 233

       END

   END

END

LAYER

   GROUP "default"

   STATUS ON

   MAXSCALEDENOM 99999999999

   MINSCALEDENOM 332808204

   TYPE LINE

   NAME "borders0"

   PROJECTION

     "init=epsg:4326"

   END

   DATA "data/boundaries.shp"

   CLASS

      STYLE

         WIDTH 0.5

         COLOR "#CDCBC6"

      END

   END

END



I followed the Tutorial<http://mapproxy.org/docs/nightly/tutorial.html> given in MapProxy website to start my proxy by starting the proxy. The tutorial example works fine. But when I use my own .map file it shows an error "could not get any sources: no image returned from source WMS"

My mapproxy.yaml is shown below

services:

  demo:

  wms:

    md:

      title: MapProxy WMS Proxy

      abstract: This is the fantastic MapProxy.

      online_resource: http://mapproxy.org/

      contact:

        person: Your Name Here

        position: Technical Director

        organization:

        address: Fakestreet 123

        city: Somewhere

        postcode: 12345

        country: Germany

        phone: +49(0)000-000000-0

        fax: +49(0)000-000000-0

        email: info at omniscale.de<mailto:info at omniscale.de>

      access_constraints:

        This service is intended for private and

        evaluation use only. The data is licensed

        as Creative Commons Attribution-Share Alike 2.0

        (http://creativecommons.org/licenses/by-sa/2.0/)

      fees: 'None'



sources:

  test_wms:

    type: wms

    req:

      url: http://osm.omniscale.net/proxy/service?

      layers: osm



  mapserver:

    type: wms

    supported_srs: ['epsg:3857', 'epsg:4326']

    req:

      url: http://localhost/cgi-bin/mapserv?

      layers: default

      map: /home/mwh/osm-demo/basemap/osm-google.map

      transparent: true

    coverage:

      bbox: -20000000.0,-20000000.0,20000000.0,20000000.0

      bbox_srs: 'epsg:3857'



layers:

  - name: mapserver

    title: Mapserver Test Layer

    sources: [mapserver]



Currently I am stuck in this problem please help me to find some answer.

Thank you.

--
හිෂාන් මෙලංග | Hishan Melanga<http://hishanmelanga.blogspot.com/>
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