[GIS] An unexpected error occurred processing the request when requesting the layer definition Url

arcgis-10.0arcgis-rest-apiarcgis-server

When I publish my MXD in ArcGIS 10.0, the service url which returns the layer definitions in json format returns an error.

{"currentVersion":10.05,"error":{"code":500, 
"message":"An unexpected error occurred processing the request.","details":[]}}],"tables":[]}

The url looks something like this:

http://myserver/arcgis/rest/services/myservice/MapServer/layers?f=json

The MXD contains 150-200 layers. If I remove a few of the layers near the bottom, it renders correctly. These layers at the bottom work fine in other MXDs. If I remove the bottom layers to get it working, but try adding completely different layers, it fails.

I found the errors being logged in a file called restlog.txt. So it looks like a bug in the code that renders the layer definitions.

ERROR:Index was outside the bounds of the array.
   at ESRI.ArcGIS.REST.MapServer.MapLayerRequestHandler.get_LayerDefinitionExpression()
   at ESRI.ArcGIS.REST.MapServer.MapLayerJsonFormatter.WriteJsonResponse()
   at ESRI.ArcGIS.REST.JsonFormatter.WriteResponse()

Here is a public Url (not related to me) illustrating the error:
http://epamap5.epa.gov/ArcGIS/rest/services/EMEF/TRINAT_2012/MapServer/layers?f=json

Is there a documented or known bug in the 10.0 Arcgis server code that renders the layer definitions.

Any idea how to get around this error and stay on 10.0?

Best Answer

There is a documented bug for this issue: NIM-063468. According to the bug report,

Synopsis: If one or more layers in a map that is published has a broken link, .NET REST returns an "Index was outside the bounds of the array." exception

Solution: Update the map document to fix the broken layer(s).

I was using ArcMap 10.2.2 to open and save the MXD file as a 10.0 document. The MDX had no issues when opened in 10.2.2. However, when I opened the MXD in ArcMap 10.0 on the server, it displayed two layers with issues. (a red explanation point). From there I used 10.0 to fix the layers.

Related Solutions

[GIS] Create layer from ArcGIS REST URL in ArcObjects using C#

In Arc 10.2 you can use IMapServerRESTLayer. Using this avoids using SOAP. Here is some code (VB.Net) that shows how it is used, with some extra code. This code is for a AddIn button. The extra code checks if the connection is OK by requesting a json file. Also, there is code for displaying the json file, and getting the REST file general information. I have not figured out a way of getting the other layer properties such as those under the source tab i.e. Data Type.

The url is typical. You need to find the url by going to the web service and looking it up.

There are other ways of NOT using SOAP. This article by Anthony Baker talks about using json files to consume REST services. Also the background information in http://rest.elkstein.org/2008/02/what-is-rest.html is very good.

Here is the code (tested under Arc10.2) Protected Overrides Sub OnClick() Const csProceedureName As String = "cmdListBaseMap_OnClick" MsgBox("In text version")

    Try
        Dim pApp As IApplication
        Dim pMxDoc As IMxDocument
        Dim pMap As IMap
        Dim pView As IActiveView
        Dim resturl As String

        resturl = "http://services.thelist.tas.gov.au/arcgis/rest/services/Basemaps/Topographic/ImageServer/?f=lyr"        ' v2 ' works

        ' there was a problem getting the interface to work. 
        ' In addition to carto needed to include ESRI.ArcGIS.DataSourceRaster
        Dim RESTLayer As IMapServerRESTLayer
        RESTLayer = New MapServerRESTLayer

        Dim pLayer As ILayer


        pApp = My.ArcMap.Application
        pMxDoc = pApp.Document
        pMap = pMxDoc.FocusMap
        pView = pMxDoc.ActiveView


        ' this is done to test the connection
        ' Use web HttpWebRequest to see if connection OK and so can retrieve file
        Dim request_json_url As String = "http://services.thelist.tas.gov.au/arcgis/rest/services/Basemaps/Topographic/ImageServer/?f=json"
        Dim request As HttpWebRequest = DirectCast(HttpWebRequest.Create(request_json_url), HttpWebRequest)
        Dim response As HttpWebResponse = DirectCast(request.GetResponse, HttpWebResponse)

        If response.StatusCode = HttpStatusCode.OK Then
            ' connection and response OK
            'MsgBox("Status Code " & response.StatusCode & vbNewLine & " Status description " & response.StatusDescription & vbNewLine & " Encoding " & response.CharacterSet)


            '' this is one method of getting the json file
            ''Dim encoding As Text.Encoding = System.Text.Encoding.GetEncoding(response.CharacterSet)
            ''Dim reader As New StreamReader(response.GetResponseStream(), encoding)
            ''Dim streamtext As String = reader.ReadToEnd()
            ''MsgBox(streamtext)

            ' '' use a webclient to check connection, the try cast does exception handling
            ''Dim wc As WebClient = New WebClient
            ''Dim response_client As String
            ''    response_client = wc.DownloadString(request_json_url)
            ''    MsgBox(response_client)

            ' Get the Rest layer
            RESTLayer.Connect(resturl)
            RESTLayer.TransparentBackground(True)

            ' Cast to ILayer so it can be added to map
            ' this cast works
            pLayer = TryCast(RESTLayer, ILayer)
            If pLayer Is Nothing Then
                MsgBox("ERROR ( " & csProceedureName & ")  Cast from MapServerRESTLayer to Ilayer failed")
            Else
                'MsgBox("Cast from MapServerRESTLayer to Ilayer OK")
            End If


            ' add layer to map
            pMap.AddLayer(pLayer)
            pView.Refresh()

            '' This works
            '' Returns the Description 
            '' Dim pGenProperties As ILayerGeneralProperties
            ''pGenProperties = TryCast(pLayer, ILayerGeneralProperties)
            ''If pGenProperties Is Nothing Then
            ''    MsgBox("No general properties")
            ''Else
            ''    MsgBox("Properties -" & pGenProperties.LayerDescription & "-")
            ''End If

        Else
            MsgBox("ERROR ( " & csProceedureName & " ) " & response.StatusCode & vbNewLine & response.StatusDescription)
        End If


    Catch ex As Exception
        MsgBox("Error " & ex.Message)
    End Try


End

[GIS] 10.3 js callback appended to query call not working

the callback param is included automatically by the JSAPI because it assumes that the server does not support CORS.

starting with version 3.0 both an automatic CORS check and the ability to declare CORS enabled servers manually were introduced.

all that said, there something must be wrong with your request or the instance of ArcGIS Server though, because just because a server supports CORS doesn't mean it should fail to respond to a JSONP request.

furthermore, an identical request to this 10.3 sample server returns the appropriate feature.

http://sampleserver6.arcgisonline.com/arcgis/rest/services/Census/MapServer/3/query?f=json&where=STATE_NAME='Hawaii'&returnGeometry=true&spatialRel=esriSpatialRelIntersects&outFields=*&callback=dojo.io.script.jsonp_dojoIoScript5._jsonpCallback

Best Answer

Related Solutions

[GIS] Create layer from ArcGIS REST URL in ArcObjects using C#

[GIS] 10.3 js callback appended to query call not working

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