Don't use fully qualified assembly names in your Web.config

 

  <ideablade.configuration version="5.00" updateFromDomainModelConfig="Ask" clientApplicationType="Silverlight">
    <probeAssemblyNames>
      <probeAssemblyName name="DevForceSilverlightApp, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null" />
    </probeAssemblyNames>
    <objectServer isDistributed="true" remoteBaseURL="http://localhost" serverPort="9009" serviceName="EntityService.svc" />
    <edmKeys>
      <edmKey name="Default">
        <probeAssemblyNames>
          <probeAssemblyName name="DevForceSilverlightApp, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null" />
        </probeAssemblyNames>
      </edmKey>
    </edmKeys>
  </ideablade.configuration>

 

However, don't make the mistake of using fully qualified names in the probe assembly names in the ProbeAssemblyNames section of the Web.config file.  If you do so, you will receive innumerable "Update Configuration File" prompts, and if you are unfortunate enough to say "Yes", the ProbeAssemblyNames section will grow and grow in both app.config and Web.Config until the ProbeAssemblyNames section in your app.config file will begin to look something like this:

 

  <ideablade.configuration version="5.00" updateFromDomainModelConfig="Ask" clientApplicationType="Silverlight">
    <logging logFile="log\DebugLog.xml" />
    <edmKeys>
      <edmKey name="Default" connection="metadata=res://DevForceSilverlightApp/ServerModelNorthwindIB.csdl|res://DevForceSilverlightApp/ServerModelNorthwindIB.ssdl|res://DevForceSilverlightApp/ServerModelNorthwindIB.msl;provider=System.Data.SqlClient;provider connection string=&quot;Data Source=.;Initial Catalog=NorthwindIB;Integrated Security=True;MultipleActiveResultSets=True&quot;" containerName="DevForceSilverlightApp.ServerModelNorthwindIBContext">
        <probeAssemblyNames>
          <probeAssemblyName name="DevForceSilverlightApp, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null" />
          <probeAssemblyName name="DevForceSilverlightApp, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null" />
          <probeAssemblyName name="DevForceSilverlightApp, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null" />
          <probeAssemblyName name="DevForceSilverlightApp, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null" />
        </probeAssemblyNames>
      </edmKey>
    </edmKeys>
  </ideablade.configuration>

 

As this happens your application may fail or take forever to come up.