[mapserver-users] WMS server error. Invalid layer(s) given in the LAYERS parameter

[Rahkonen Jukka]

Hi,

Your latest mail shows that you do not know yet how a complete and valid GetMap request looks like. Later in this mail you will see an example.

Read about EXTENT from http://mapserver.org/mapfile/map.html
Read carefully http://mapserver.org/ogc/wms_server.html
The mapfile on this page is quite a bit more complete than yours but we can try to improve it. Let's have a try by using EPSG:4326 as a default output projection

- Add MS_ERRORFILE into your mapfile at MAP level
- Add EXTENT -90 -180 90 180 at MAP level (or better the real extents of your data in EPSG:4326 units)
- Add UNITS DD at MAP level
- Add projection block at MAP level
	PROJECTION
	"init=epsg:4326"
	END
- Add projection block at LAYER level (what is the projection of your table in Oracle?)
- Add DEBUG 5 at LAYER level
- Make your request and look what gets written into the MS_ERRORFILE.

Tell us how your GetMap looks like. If you do not know, have a look at the logfile \ms4w\Apache\logs\access.log, the request get logged there. 

Proper request would look about like this

http://localhost/cgi-bin/mapserv.exe?map=your.map&
REQUEST=GetMap&
SERVICE=WMS&
VERSION=1.1.1&
WIDTH=459&
HEIGHT=651&
LAYERS=TestMap&
TRANSPARENT=TRUE&
FORMAT=image/png&
BBOX=-180,-90,180,90&
SRS=EPSG:4326&
STYLES=

The error suggests that you are giving a layer name that does not exist in your system, thus something else than "TestMap". It may not be a good idea to have same name for the service and layer. Consider renaming the service into TestService and layer into TestLayer, it may save your hair in the future.

I hope this helps you a bit further. 

-Jukka Rahkonen-

Paul S wrote:
> 
> I am not sure if I double-posted this - if so - apologies!
> 
> 
> I installed MS4W a few days ago to put together a small proof-of-concept.
> I've been through the tutorial, which I got to work with a little tweaking.
> When I attempt to use an Oracle spatial table, I get a MS server error:
> Invalid layers(s)... error - which gives me little indication of where I am going
> wrong.
> 
> Can anyone spot a problem here? I am running out of hair to pull out.
> 
> I have the Oracle client installed on my local machine and am attempting to
> draw a map from a spatial table on a local vm on which I have Oracle Spatial
> running (10g).
> 
> I tried OGRINFO using the Oracle login credentials and table name - with
> immediate success.
> 
> mapserv -v shows that ORACLESPATIAL is a valid option
> 
> GetCapabiltiies contains no warnings
> 
> The map file is very simple - I have tried at least one hundred variations.
> 
> The data table has a SRID (though I have other tables with SRIDs and tables
> without). I've included the SRID in wms_srs and I have excluded it. I am
> beginning to believe the problem lies elsewhere - but have no idea what
> approach to use to find it, other than stabbing in the dark.
> 
> The map file contents are listed below.  Thanks for any advice/pointers you can
> offer.
> 
> MAP
>  NAME "Map1"
>  SIZE 600 400
> WEB
>     IMAGEPATH "/tmp/ms_tmp/"
>     TEMPLATE "..\Templates\TEMPLATE2.HTML"
>     METADATA
>         "wms_enable_request"  "*"
>             "wms_title"    "TestMap"
>                                "wms_srs"      "EPSG:2205"
>     END
> END
> 
> LAYER
>     NAME TestMap
>     TYPE LINE
>     STATUS ON
>     UNITS METERS
>     CONNECTIONTYPE ORACLESPATIAL
>     CONNECTION "test_user/test_user at LOCALVM1"
>     DATA "SHAPE FROM (SELECT SHAPE FROM XNA_ROUTES)"
>     METADATA
>         "wms_enable_request"  "*"
>             "wms_name"    "TestMap"
>             "wms_title"    "TestMapTitle"
>                               "wms_srs"      "EPSG:4326"
>         "wms_format"   "image/gif"
>     END
> END #LAYER
> 
> 
> END #MAP
> 
> 
> 
> 
> --
> View this message in context: http://osgeo-org.1560.x6.nabble.com/WMS-
> server-error-Invalid-layer-s-given-in-the-LAYERS-parameter-tp5079259.html
> Sent from the Mapserver - User mailing list archive at Nabble.com.
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