You have to update the esb.config file to resolve this issue. To do this, save a backup copy of the original esb.config (default location is C:\Program Files (x86)\Microsoft BizTalk ESB Toolkit) before making any of the following changes. Note that esb.config file changes will require a recycle of the process that is using ESB.
All of the above changes take place within the <esb.resolver> section of the esb.config file. Below is the <esb.resolver> section with all of the above changes already implemented.
<esb.resolver xmlns="http://schemas.microsoft.com/practices/2010/unity>">
<!-- Lifetime manager types -->
<alias alias="singleton" type="Microsoft.Practices.Unity.ContainerControlledLifetimeManager, Microsoft.Practices.Unity, Version=2.0.414.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
<!-- std type providers -->
<alias alias="string" type="System.String, mscorlib"/>
<alias alias="int" type="System.Int32, mscorlib"/>
<alias alias="bool" type="System.Boolean, mscorlib"/>
<!-- repository providers -->
<alias alias="IRepositoryProvider" type="Microsoft.Practices.ESB.Resolver.Itinerary.Facts.Repository.IRepositoryProvider, Microsoft.Practices.ESB.Resolver.Itinerary.Facts, Version=2.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
<alias alias="SqlRepositoryProvider" type="Microsoft.Practices.ESB.Resolver.Itinerary.DataAccess.SqlRepositoryProvider, Microsoft.Practices.ESB.Resolver.Itinerary.DataAccess, Version=2.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
<!-- fact providers -->
<alias alias="IFactProvider" type="Microsoft.Practices.ESB.Resolver.Facts.IFactProvider, Microsoft.Practices.ESB.Resolver.Facts, Version=2.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
<alias alias="IFactTranslator" type="Microsoft.Practices.ESB.Resolver.Facts.IFactTranslator, Microsoft.Practices.ESB.Resolver.Facts, Version=2.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
<alias alias="ItineraryFactProvider" type="Microsoft.Practices.ESB.Resolver.Itinerary.Facts.ItineraryFactProvider, Microsoft.Practices.ESB.Resolver.Itinerary.Facts, Version=2.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
<alias alias="ItineraryStaticFactProvider" type="Microsoft.Practices.ESB.Resolver.Itinerary.Facts.ItineraryStaticFactProvider, Microsoft.Practices.ESB.Resolver.Itinerary.Facts, Version=2.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
<alias alias="ItineraryHeaderFactProvider" type="Microsoft.Practices.ESB.Resolver.Itinerary.Facts.ItineraryHeaderFactProvider, Microsoft.Practices.ESB.Resolver.Itinerary.Facts, Version=2.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
<alias alias="ItineraryContentsFactProvider" type="Microsoft.Practices.ESB.Resolver.Itinerary.Facts.ItineraryContentsFactProvider, Microsoft.Practices.ESB.Resolver.Itinerary.Facts, Version=2.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
<alias alias="ResolutionFactProvider" type="Microsoft.Practices.ESB.Resolver.Itinerary.Facts.ResolutionFactProvider, Microsoft.Practices.ESB.Resolver.Itinerary.Facts, Version=2.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
<alias alias="DefaultFactTranslator" type="Microsoft.Practices.ESB.Resolver.Facts.DefaultFactTranslator, Microsoft.Practices.ESB.Resolver.Facts, Version=2.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
<alias alias="ItineraryFactTranslator" type="Microsoft.Practices.ESB.Resolver.Itinerary.Facts.ItineraryFactTranslator, Microsoft.Practices.ESB.Resolver.Itinerary.Facts, Version=2.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
<alias alias="ItineraryContentsFactTranslator" type="Microsoft.Practices.ESB.Resolver.Itinerary.Facts.ItineraryContentsFactTranslator, Microsoft.Practices.ESB.Resolver.Itinerary.Facts, Version=2.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
<!-- resolve providers -->
<alias alias="IResolveProvider" type="Microsoft.Practices.ESB.Resolver.IResolveProvider, Microsoft.Practices.ESB.Resolver, Version=2.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
<alias alias="ItineraryResolveProvider" type="Microsoft.Practices.ESB.Resolver.Itinerary.BREItineraryResolverContainer,Microsoft.Practices.ESB.Resolver.Itinerary, Version=2.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35 "/>
<alias alias="StaticItineraryResolveProvider" type="Microsoft.Practices.ESB.Resolver.Itinerary.StaticItineraryResolveContainer,Microsoft.Practices.ESB.Resolver.Itinerary, Version=2.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35 "/>
<!-- test containers -->
<container name="BRI">
<register type="IResolveProvider" mapTo="ItineraryResolveProvider" />
<register type="IFactProvider" mapTo="ItineraryFactProvider" name="ItineraryFactProvider">
<lifetime type="singleton" />
</register>
<register type="IRepositoryProvider" mapTo="SqlRepositoryProvider" name="CurrentRepositoryProvider">
<lifetime type="singleton" />
<constructor>
<param name="connectionStringName">
<value value="ItineraryDb"/>
</param>
<param name="cacheManagerName">
<value value="Itinerary Cache Manager"/>
</param>
<param name="cacheTimeout">
<value value="120" />
</param>
</constructor>
</register>
<register type="IFactTranslator" mapTo="DefaultFactTranslator" name="DefaultFactTranslator">
<lifetime type="singleton" />
</register>
<register type="IFactTranslator" mapTo="ItineraryFactTranslator" name="ItineraryFactTranslator">
<lifetime type="singleton" />
<constructor>
<param name="repositoryProvider">
<dependency name="CurrentRepositoryProvider"/>
</param>
</constructor>
</register>
</container>
<container name="ITINERARY">
<register type="IResolveProvider" mapTo="StaticItineraryResolveProvider" />
<register type="IRepositoryProvider" mapTo="SqlRepositoryProvider" name="CurrentRepositoryProvider">
<lifetime type="singleton" />
<constructor>
<param name="connectionStringName">
<value value="ItineraryDb"/>
</param>
<param name="cacheManagerName">
<value value="Itinerary Cache Manager"/>
</param>
<param name="cacheTimeout">
<value value="120" />
</param>
</constructor>
</register>
<register type="IFactProvider" mapTo="ResolutionFactProvider" name="ResolutionFactProvider" />
<register type="IFactProvider" mapTo="ItineraryHeaderFactProvider" name="HeaderFactProvider" />
<register type="IFactProvider" mapTo="ItineraryStaticFactProvider" name="StaticFactProvider" />
<register type="IFactProvider" mapTo="ItineraryContentsFactProvider" name="ItineraryContentsFactProvider" />
<register type="IFactTranslator" mapTo="DefaultFactTranslator" name="DefaultFactTranslator">
<lifetime type="singleton" />
</register>
<register type="IFactTranslator" mapTo="ItineraryFactTranslator" name="ItineraryFactTranslator">
<lifetime type="singleton" />
<constructor>
<param name="repositoryProvider">
<dependency name="CurrentRepositoryProvider"/>
</param>
</constructor>
</register>
<register type="IFactTranslator" mapTo="ItineraryContentsFactTranslator" name="ItineraryContentsFactTranslator">
<lifetime type="singleton" />
<constructor>
<param name="overrideExistingItinerary">
<value value="False"/>
</param>
</constructor>
</register>
</container>
</esb.resolver>