[mapguide-users] Cannot Create Layers From Feature Sources

gom gord.mckenzie at canam.com
Thu Sep 27 08:25:29 PDT 2012

Further to my difficultiess with unmanged data sources in 2.4, I wonder if
the following images help.  As you can see the schema name is different in
the two previews of the same data source.  If I do this comparison on the
same datasource under 2.2 the names match.  This suggests to me an issue or
possible answer as to why I cannot create layers from these datasources?  I
have no idea why the difference exists but it happens to anything I import
from a package or anything new I create.  *Schema Name of data source as
shown in Maestro using the Preview function on the Toolbar.  This is the
correct or expected name.* schema1.png
<http://osgeo-org.1560.n6.nabble.com/file/n5004985/schema1.png>  *Schema
Name of data source as shown in Maestro using the Local Preview function*
schema2.png <http://osgeo-org.1560.n6.nabble.com/file/n5004985/schema2.png>  
gom wrote
> I have a number of unmanaged SDF files in a folder. (2 point sdf files,
> 3polyline (curve) sdf files) I have them authored/working nicely on an
> activeMapguide 2.2 server 32 bit version on IIS.  I exported them as a
> package andimported them to my development workstation.  Windows 7
> Professional,Mapguide 2.4 RC1.  I have another test server Windows 2008
> IIS with 2.4 RC264 bit where I did the same.The data files are available
> for authoring in the Mapguide Studio/Maestroprograms.  I can create data
> sources and use the preview functions on theprograms to view the schema,
> attributes etc with no trouble.  I see a validgeometry property.  In
> addition I can preview the features and see theobjects drawn as expected. 
> Permissions seem to be consistent across thethree machines.All the layers
> for 4 data sources are broken.  When I go to modify a layer,and select one
> of the 4 data sources, I get an errors.  When I try to createa new layer I
> get the same errors. Re-creating the data sources makes nodifference. 
> (One of the polyline data sources is still  working asexpected).  I edited
> and saved each file in AutoCAD map to ensure I couldread/write them
> successfully.In Maestro 4.0.2 it says "Feature Source  (xxx) has no usable
> featureclasses.  Choose a different feature source.", then it says "The
> Resource IDcould not be found."In Mapguide Studio 2010 and 2011 it says
> "Object reference not set to aninstance of an object."  The layer dialog
> shows the selected FeatureSourcename and the expected schema in the
> dropdown list but Geometry drop down hasno options.I have tried every
> variation of new feature sources and layers but no luck.Is there something
> I am missing?  Can anyone suggest some different tests orapproaches I can
> take to sorting this out?mapguide-users mailing list

> mapguide-users at .osgeo

> http://lists.osgeo.org/mailman/listinfo/mapguide-users

View this message in context: http://osgeo-org.1560.n6.nabble.com/Cannot-Create-Layers-From-Feature-Sources-tp5003380p5004985.html
Sent from the MapGuide Users mailing list archive at Nabble.com.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/mapguide-users/attachments/20120927/e851da8a/attachment.html>

More information about the mapguide-users mailing list