I have created an Network Analyst Routing sample. On Arcmap it works fine when creating a route on the data.

However, when I create Network Analyst service through ArcGIS Server, using this REST service Silverlight sample gives this error:

Routing error: Unable to complete operation unable to find attribute invalid Context

Any help please.

  • I have the same error. If you find anything out post back here or on: forums.arcgis.com/threads/… thanks. i've been working on this one for days.....
    – user16620
    Mar 28, 2013 at 18:14
  • 2
    Is the Network Analyst for ArcGIS Server extension licensed on your server? Mar 29, 2013 at 17:45
  • Sorry I didn't see your answer Yes the Network Analyst for ArcGIS Server extension is licensed, and finally I found a solution using Geoprocessing task.
    – Geomak
    Apr 1, 2013 at 13:05

2 Answers 2


i have made a model using model builder like described here , then i published the model on arcgis server, before calling it using silverlight.

  • 1
    Was this supposed to be a comment, or did it solve your issue? Apr 1, 2013 at 14:21
  • i think this answer had solved her issue
    – geogeek
    Apr 1, 2013 at 16:51
  • i have solved this problem using geoprocessing task
    – Geomak
    Apr 2, 2013 at 15:19

come across and solved the problem just now
cause RouteParameters 's default value of UseHierarchy is True
just set UseHierarchy to False

RouteParameters parameters = new RouteParameters();
parameters.Stops = stopsGraphicsLayer;
parameters.OutSpatialReference = MyMap.SpatialReference;
parameters.UseHierarchy = false;

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