Troubleshooting the exception:

 

KellermanSoftware.Serialization.SerializerException was unhandled
Message=Cannot open database, missing type. Do an ExportSchema or include the following business class in your project: CXMobileAppTest.Entities.CallListBindModel, CXMobileAppTest, Version=1.0.0.0, Culture=neutral, PublicKeyToken=n”

 

What this means is that you need to include the assembly named CXMobileAppTest in your project that has the class CallListBindModel in the namespace CXMobileAppTest.Entities.  One of the following has happened:

 

1. The assembly has been removed from the project.
2. The assembly name has been changed.
3. The namespace has been renamed.
4. The class has been moved from one assembly to another assembly.
5. The class has been renamed.
6. The version has changed.

 

The database is tied directly to your object model.  In order for the .NET framework to create a type, the assembly name, assembly version, namespace, and class name must exist and be exactly the same.

 

If the code for the class has been lost, do an ExportSchema and the code will be re-created for you.