Recolecciones de una variedad de fuentes (incluida stackOverlflow), sin embargo, cuando lo uso, aparece el siguiente mensaje de error

"La propiedad de configuración 'deviceconfig' puede no derivarse de la Sección de configuración".

He estado luchando con esto durante la mayor parte del día ahora, y no estoy más cerca de una solución, por lo que cualquier ayuda en el asunto sería muy apreciada. Soy un novato en la implementación de secciones de configuración personalizadas, así que tráteme con cuidado :-)

El archivo app.config se ve así:

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <configSections>
    <section name="deviceconfig"  type="CNIMonitor.Core.CustomConfig.DeviceConfig,Core"/>
  </configSections>
<system.diagnostics>
    <sources>
        <!-- This section defines the logging configuration for My.Application.Log -->
        <source name="DefaultSource" switchName="DefaultSwitch">
            <listeners>
                <add name="FileLog"/>
                <!-- Uncomment the below section to write to the Application Event Log -->
                <!--<add name="EventLog"/>-->
            </listeners>
        </source>
    </sources>
    <switches>
        <add name="DefaultSwitch" value="Information" />
    </switches>
    <sharedListeners>
        <add name="FileLog"
             type="Microsoft.VisualBasic.Logging.FileLogTraceListener, Microsoft.VisualBasic, Version=8.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL" 
             initializeData="FileLogWriter"/>
        <!-- Uncomment the below section and replace APPLICATION_NAME with the name of your application to write to the Application Event Log -->
        <!--<add name="EventLog" type="System.Diagnostics.EventLogTraceListener" initializeData="APPLICATION_NAME"/> -->
    </sharedListeners>
</system.diagnostics>
<deviceconfig>
  <devices>          
      <device deviceid = "1" 
              name = "localhost" 
              ipaddress="127.0.0.1" 
              port="10000"
              status="not listening"
              message="no message"
      />
      <device deviceid ="2" 
              name ="2nd localhost" 
              ipaddress="127.0.0.1" 
              port="20000" 
              status="not listening"
              message="no message"
      />
  </devices>  
</deviceconfig>

El código del controlador de sección personalizado de la siguiente manera:

Imports System.Configuration

Espacio de nombres CNIMonitor.Core.CustomConfig

Public Class DeviceConfig
    Inherits ConfigurationSection
    <ConfigurationProperty("deviceconfig")> _
    Public ReadOnly Property DeviceConfig() As DeviceConfig
        Get
            Return CType(MyBase.Item("deviceconfig"), DeviceConfig)
        End Get
    End Property
End Class

<ConfigurationCollectionAttribute(GetType(Device))> _
Public Class Devices
    Inherits ConfigurationElementCollection
    Protected Overrides Function CreateNewElement() As ConfigurationElement
        Return New Device
    End Function
    Protected Overrides Function GetElementKey _
    (ByVal element As ConfigurationElement) As Object
        Return CType(element, Device).DeviceID
    End Function
    Public Sub Add(ByVal element As Device)
        Me.BaseAdd(element)
    End Sub
End Class
Public Class Device
    Inherits ConfigurationElement
    <ConfigurationProperty("deviceid", DefaultValue:="", IsKey:=True, IsRequired:=True)> _
    Public Property DeviceID() As String
        Get
            Return CType(MyBase.Item("deviceid"), String)
        End Get
        Set(ByVal value As String)
            MyBase.Item("deviceid") = value
        End Set
    End Property
    <ConfigurationProperty("hostname", DefaultValue:="", IsKey:=True, IsRequired:=False)> _
    Public Property HostName() As String
        Get
            Return CType(MyBase.Item("RegisteredDate"), String)
        End Get
        Set(ByVal value As String)
            MyBase.Item("RegisteredDate") = value
        End Set
    End Property
    <ConfigurationProperty("ipaddress", DefaultValue:="", IsKey:=True, IsRequired:=False)> _
    Public Property IpAddress() As String
        Get
            Return CType(MyBase.Item("ipaddress"), String)
        End Get
        Set(ByVal value As String)
            MyBase.Item("ipaddress") = value
        End Set
    End Property
    <ConfigurationProperty("port", DefaultValue:="", IsKey:=True, IsRequired:=False)> _
    Public Property Port() As String
        Get
            Return CType(MyBase.Item("port"), String)
        End Get
        Set(ByVal value As String)
            MyBase.Item("port") = value
        End Set
    End Property
    <ConfigurationProperty("status", DefaultValue:="", IsKey:=False, IsRequired:=False)> _
    Public Property Status() As String
        Get
            Return CType(MyBase.Item("status"), String)
        End Get
        Set(ByVal value As String)
            MyBase.Item("status") = value
        End Set
    End Property
    <ConfigurationProperty("message", DefaultValue:="", IsKey:=False, IsRequired:=False)> _
    Public Property Message() As String
        Get
            Return CType(MyBase.Item("message"), String)
        End Get
        Set(ByVal value As String)
            MyBase.Item("message") = value
        End Set
    End Property
End Class

End Namespace