RTC 6.x Extensibility workshop error Eclipse client launch EclipseStarter.class not found

I am running the RTC 6.x Extensibility workshop from PDF RTC603ExtPoT. I am installing on Linux and use Eclipse Luna. I successfully installed RTC 6.0.4 and the Eclipse client functions perfectly until I try to Test the RTC Eclipse client launch (Sec 1.9, pp 67-69). On pg 68 when I click Debug, the client launch fails with the following error:

!ENTRY org.eclipse.equinox.launcher 4 0 2017-10-18 11:20:41.842
!MESSAGE Exception launching the Eclipse Platform:
!STACK
java.lang.ClassNotFoundException: org.eclipse.core.runtime.adaptor.EclipseStarter
        at java.net.URLClassLoader.findClass(URLClassLoader.java:602)
        at java.lang.ClassLoader.loadClassHelper(ClassLoader.java:786)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:764)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:741)
        at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:617)
        at org.eclipse.equinox.launcher.Main.basicRun(Main.java:575)
        at org.eclipse.equinox.launcher.Main.run(Main.java:1408)
        at org.eclipse.equinox.launcher.Main.main(Main.java:138

As expected, the same error occurs when I do a client launch from the run configuration in Sec 3.3, pg 82.

Eclipse is already open, and this launch is supposed to fire up another instance of Eclipse, but fails.

I did find the org/eclipse/core/runtime/adaptor/EclipseStarter.class in the jar file org.eclipse.osgi_3.10.2.v20150203-1939.jar (in directory installs/TeamConcert/eclipse/plugins). But I have been unable to successfully load in classpath for the client launch.

Thanks,

Kevin