Compilation of Java actions failed

I am working through the online courses and am currently on 5.6 where it wants me to run locally for the first time after resolving the missing page errors.  During this run I receive the java error with this message:

Buildfile: D:\Users\pcadministrator\Documents\Mendix\Training Management 2-main\deployment\build_core.xml

compile:
    [javac] Compiling 45 source files to D:\Users\pcadministrator\Documents\Mendix\Training Management 2-main\deployment\run\bin
    [javac] D:\Users\pcadministrator\Documents\Mendix\Training Management 2-main\javasource\appcloudservices\OpenIDHandler.java:350: error: cannot find symbol
    [javac]             resp.addCookie(RequestHandler.XAS_SESSION_ID, "", "/", "", 0, true);
    [javac]                                          ^
    [javac]   symbol:   variable XAS_SESSION_ID
    [javac]   location: class RequestHandler
    [javac] D:\Users\pcadministrator\Documents\Mendix\Training Management 2-main\javasource\appcloudservices\SessionInitializer.java:46: error: cannot find symbol
    [javac]         String sessionid = req.getCookie(RequestHandler.XAS_SESSION_ID);
    [javac]                                                        ^
    [javac]   symbol:   variable XAS_SESSION_ID
    [javac]   location: class RequestHandler
    [javac] D:\Users\pcadministrator\Documents\Mendix\Training Management 2-main\javasource\appcloudservices\SessionInitializer.java:64: error: cannot find symbol
    [javac]         resp.addCookie(RequestHandler.XAS_SESSION_ID, session.getId().toString(),"/" ,"" ,-1, true );
    [javac]                                      ^
    [javac]   symbol:   variable XAS_SESSION_ID
    [javac]   location: class RequestHandler
    [javac] Note: Some input files use or override a deprecated API.
    [javac] Note: Recompile with -Xlint:deprecation for details.
    [javac] 3 errors