The error message "cannot access javax.naming.Referenceable class file for javax.naming.Referenceable not found" suggests that your Java program is trying to use the javax.naming.Referenceable class, but it cannot find the class file on the classpath.
There are a few possible reasons for this error:
The class file for javax.naming.Referenceable is not in your project's classpath. Make sure that you have included all the necessary jar files in your project, and that they are being correctly added to the classpath when you build or run your program.
You are using an older version of Java that does not include the javax.naming.Referenceable class. The javax.naming package was introduced in Java 1.4, so make sure that you are using at least Java 1.4 or later.
You are using a different version of the javax.naming package than the one your program is expecting. Make sure that you are using the correct version of the jar file, or upgrade or downgrade to a version that is compatible with your program.
To fix this error, you will need to identify the root cause and adjust your project's classpath or dependencies accordingly. If you are unsure how to do this, you may want to consult the Java documentation or ask for help from a Java developer or community forum.