Unresolved Class or Interface References
The Upgrade Wizard has identified that your Visual J++ 6.0 project references some classes or interfaces that are not defined within the project, or in the assembly references supplied in the Add Project References page of the Upgrade Wizard. See the details of this issue in the report, for more information on the classes or types whose references were not found.
In addition to probing the Visual J++ 6.0 project references and assembly references specified during the upgrade, the upgrade analysis attempts to locate the missing reference by probing the directory and archive locations defined in the classpath setting of the Visual J++ 6.0 project.
This issue may be reported when your Visual J++ 6.0 project depends on classes defined in another project in the solution, or on external class libraries referenced using the CLASSPATH environment variable on the system.
For resolving this issue, you can add the assembly or assemblies containing the unresolved classes or interfaces, to the references list of the upgraded project in Visual J#. For more information on how to do this, see Adding and Removing Project References.
Alternatively, during upgrade you can provide a reference to the assembly or assemblies containing the unresolved classes or interfaces. For information on how to do this, see Upgrade Wizard: Add Project References.
If you do not have the source files of the externally references classes or interfaces, but have the binary files or archives, then you can convert the class (.class) files or archive (.cab, .jar or .zip) files to MSIL assemblies using the Visual J# Binary Converter tool (jbimp.exe).
that since some references were not found, the upgrade analysis may be incomplete for classes or interfaces extending or implementing the missing classes or interfaces.