Chronicles on Migration From Entity Framework to Telerik OpenAccess - 1

I have to replace all the EntityDataSources to OpenAccessLinqDataSource's(or the old OpenAccessDataSource)
So this below:

<asp:EntityDataSource runat="server" ID="edsDegree" ConnectionString="name=Entities"  

DefaultContainerName="Entities" EnableFlattening="False"
    EntitySetName="Degrees" Include="College,DegreeType,MajorType"
    EntityTypeFilter="Degree" Where="it.UserID=@UserID">
    <WhereParameters>
        <asp:Parameter Name="UserID" DbType="Int32" />
    </WhereParameters>
</asp:EntityDataSource> 

will become :

<telerik:OpenAccessLinqDataSource runat="server" ID="edsDegree"
    ResourceSetName="Degrees" EntityTypeName="" 
ContextTypeName="DataModel.data"
  Select=" new (PlannedGraduationDate,GraduationDate, College,DegreeType,MajorType)"
    Where="it.UserID=@UserID">
    <WhereParameters>
        <asp:Parameter Name="UserID" DbType="Int32" />
    </WhereParameters>
</telerik:OpenAccessLinqDataSource>

Neither of the telerik data controls have the "Include" property. So if the EntityDataSource is using it ,
you can Include your related entities as Select="new (ID,Name, ChildEntity )".In the above examples related entities of Degree entity are:
College,DegreeType,MajorType

Permanent Fix to "Unable to load one or more of the requested types. Retrieve the LoaderExceptions property for more information"

I keep getting this "Unable to load one or more of the requested types. Retrieve the LoaderExceptions property for more information" Every time I had to restart IIS to temporarily fix it. I tried many things to resolve the issue nothing really helped. Finally I have a permanent fix : It's fixed in .Net 4.5 framework You have to install .NEt 4.5 and do nothing else. According to forums 4.5 requires VS 2012 And I m still using 2010