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I am getting the following compilation error while starting the HT service. Any help in resolving this will be appreciated.

Thanks.

    [javac]                              ^

    [javac] C:\jBPM\jbpm-installer\task-service\src\org\jbpm\DemoTaskService.jav

a:33: package org.jbpm.task.service does not exist

    [javac] import org.jbpm.task.service.TaskServiceSession;

    [javac]                              ^

    [javac] C:\jBPM\jbpm-installer\task-service\src\org\jbpm\DemoTaskService.jav

a:34: package org.jbpm.task.service.mina does not exist

    [javac] import org.jbpm.task.service.mina.MinaTaskServer;

    [javac]                                   ^

    [javac] C:\jBPM\jbpm-installer\task-service\src\org\jbpm\DemoTaskService.jav

a:35: package org.drools does not exist

    [javac] import org.drools.SystemEventListenerFactory;

    [javac]                   ^

    [javac] C:\jBPM\jbpm-installer\task-service\src\org\jbpm\DemoTaskService.jav

a:36: package org.mvel2 does not exist

    [javac] import org.mvel2.MVEL;

    [javac]                  ^

    [javac] C:\jBPM\jbpm-installer\task-service\src\org\jbpm\DemoTaskService.jav

a:37: package org.mvel2 does not exist

    [javac] import org.mvel2.ParserContext;

    [javac]                  ^

    [javac] C:\jBPM\jbpm-installer\task-service\src\org\jbpm\DemoTaskService.jav

a:38: package org.mvel2.compiler does not exist

    [javac] import org.mvel2.compiler.ExpressionCompiler;

    [javac]                           ^

    [javac] C:\jBPM\jbpm-installer\task-service\src\org\jbpm\DemoTaskService.jav

a:43: cannot find symbol

    [javac] symbol  : class EntityManagerFactory

    [javac] location: class org.jbpm.DemoTaskService

    [javac]         EntityManagerFactory emf = Persistence.createEntityManagerFa

ctory("org.jbpm.task");

    [javac]         ^

    [javac] C:\jBPM\jbpm-installer\task-service\src\org\jbpm\DemoTaskService.jav

a:43: cannot find symbol

    [javac] symbol  : variable Persistence

    [javac] location: class org.jbpm.DemoTaskService

    [javac]         EntityManagerFactory emf = Persistence.createEntityManagerFa

ctory("org.jbpm.task");

    [javac]                                    ^

    [javac] C:\jBPM\jbpm-installer\task-service\src\org\jbpm\DemoTaskService.jav

a:44: cannot find symbol

    [javac] symbol  : class TaskService

    [javac] location: class org.jbpm.DemoTaskService

    [javac]         TaskService taskService = new TaskService(emf, SystemEventLi

stenerFactory.getSystemEventListener());

    [javac]         ^

    [javac] C:\jBPM\jbpm-installer\task-service\src\org\jbpm\DemoTaskService.jav

a:44: cannot find symbol

    [javac] symbol  : class TaskService

    [javac] location: class org.jbpm.DemoTaskService

    [javac]         TaskService taskService = new TaskService(emf, SystemEventLi

stenerFactory.getSystemEventListener());

    [javac]                                       ^

    [javac] C:\jBPM\jbpm-installer\task-service\src\org\jbpm\DemoTaskService.jav

a:44: cannot find symbol

    [javac] symbol  : variable SystemEventListenerFactory

    [javac] location: class org.jbpm.DemoTaskService

    [javac]         TaskService taskService = new TaskService(emf, SystemEventLi

stenerFactory.getSystemEventListener());

    [javac]                                                        ^

    [javac] C:\jBPM\jbpm-installer\task-service\src\org\jbpm\DemoTaskService.jav

a:45: cannot find symbol

    [javac] symbol  : class TaskServiceSession

    [javac] location: class org.jbpm.DemoTaskService

    [javac]         TaskServiceSession taskSession = taskService.createSession()

;

    [javac]         ^

    [javac] C:\jBPM\jbpm-installer\task-service\src\org\jbpm\DemoTaskService.jav

a:49: cannot find symbol

    [javac] symbol  : class User

    [javac] location: class org.jbpm.DemoTaskService

    [javac]         Map<String, User> users = ( Map<String, User> ) eval( reader

, vars );

    [javac]                     ^

    [javac] C:\jBPM\jbpm-installer\task-service\src\org\jbpm\DemoTaskService.jav

a:49: cannot find symbol

    [javac] symbol  : class User

    [javac] location: class org.jbpm.DemoTaskService

    [javac]         Map<String, User> users = ( Map<String, User> ) eval( reader

, vars );

    [javac]                                                 ^

    [javac] C:\jBPM\jbpm-installer\task-service\src\org\jbpm\DemoTaskService.jav

a:49: warning: [unchecked] unchecked cast

    [javac] found   : java.lang.Object

    [javac] required: java.util.Map<java.lang.String,User>

    [javac]         Map<String, User> users = ( Map<String, User> ) eval( reader

, vars );

    [javac]                                                             ^

    [javac] C:\jBPM\jbpm-installer\task-service\src\org\jbpm\DemoTaskService.jav

a:50: cannot find symbol

    [javac] symbol  : class User

    [javac] location: class org.jbpm.DemoTaskService

    [javac]         for ( User user : users.values() ) {

    [javac]               ^

    [javac] C:\jBPM\jbpm-installer\task-service\src\org\jbpm\DemoTaskService.jav

a:54: cannot find symbol

    [javac] symbol  : class Group

    [javac] location: class org.jbpm.DemoTaskService

    [javac]         Map<String, Group> groups = ( Map<String, Group> ) eval( rea

der, vars );

    [javac]                     ^

    [javac] C:\jBPM\jbpm-installer\task-service\src\org\jbpm\DemoTaskService.jav

a:54: cannot find symbol

    [javac] symbol  : class Group

    [javac] location: class org.jbpm.DemoTaskService

    [javac]         Map<String, Group> groups = ( Map<String, Group> ) eval( rea

der, vars );

    [javac]                                                   ^

    [javac] C:\jBPM\jbpm-installer\task-service\src\org\jbpm\DemoTaskService.jav

a:54: warning: [unchecked] unchecked cast

    [javac] found   : java.lang.Object

    [javac] required: java.util.Map<java.lang.String,Group>

    [javac]         Map<String, Group> groups = ( Map<String, Group> ) eval( rea

der, vars );

    [javac]                                                                ^

    [javac] C:\jBPM\jbpm-installer\task-service\src\org\jbpm\DemoTaskService.jav

a:55: cannot find symbol

    [javac] symbol  : class Group

    [javac] location: class org.jbpm.DemoTaskService

    [javac]         for ( Group group : groups.values() ) {

    [javac]               ^

    [javac] C:\jBPM\jbpm-installer\task-service\src\org\jbpm\DemoTaskService.jav

a:59: cannot find symbol

    [javac] symbol  : class MinaTaskServer

    [javac] location: class org.jbpm.DemoTaskService

    [javac]         MinaTaskServer server = new MinaTaskServer(taskService);

    [javac]         ^

    [javac] C:\jBPM\jbpm-installer\task-service\src\org\jbpm\DemoTaskService.jav

a:59: cannot find symbol

    [javac] symbol  : class MinaTaskServer

    [javac] location: class org.jbpm.DemoTaskService

    [javac]         MinaTaskServer server = new MinaTaskServer(taskService);

    [javac]                                     ^

    [javac] C:\jBPM\jbpm-installer\task-service\src\org\jbpm\DemoTaskService.jav

a:86: cannot find symbol

    [javac] symbol  : class ExpressionCompiler

    [javac] location: class org.jbpm.DemoTaskService

    [javac]         ExpressionCompiler compiler = new ExpressionCompiler( str.tr

im() );

    [javac]         ^

    [javac] C:\jBPM\jbpm-installer\task-service\src\org\jbpm\DemoTaskService.jav

a:86: cannot find symbol

    [javac] symbol  : class ExpressionCompiler

    [javac] location: class org.jbpm.DemoTaskService

    [javac]         ExpressionCompiler compiler = new ExpressionCompiler( str.tr

im() );

    [javac]                                           ^

    [javac] C:\jBPM\jbpm-installer\task-service\src\org\jbpm\DemoTaskService.jav

a:88: cannot find symbol

    [javac] symbol  : class ParserContext

    [javac] location: class org.jbpm.DemoTaskService

    [javac]         ParserContext context = new ParserContext();

    [javac]         ^

    [javac] C:\jBPM\jbpm-installer\task-service\src\org\jbpm\DemoTaskService.jav

a:88: cannot find symbol

    [javac] symbol  : class ParserContext

    [javac] location: class org.jbpm.DemoTaskService

    [javac]         ParserContext context = new ParserContext();

    [javac]                                     ^

    [javac] C:\jBPM\jbpm-installer\task-service\src\org\jbpm\DemoTaskService.jav

a:92: cannot find symbol

    [javac] symbol  : class AccessType

    [javac] location: class org.jbpm.DemoTaskService

    [javac]         context.addImport( "AccessType", AccessType.class );

    [javac]                                          ^

    [javac] C:\jBPM\jbpm-installer\task-service\src\org\jbpm\DemoTaskService.jav

a:93: cannot find symbol

    [javac] symbol  : class AllowedToDelegate

    [javac] location: class org.jbpm.DemoTaskService

    [javac]         context.addImport( "AllowedToDelegate", AllowedToDelegate.cl

ass );

    [javac]                                                 ^

    [javac] C:\jBPM\jbpm-installer\task-service\src\org\jbpm\DemoTaskService.jav

a:94: cannot find symbol

    [javac] symbol  : class Attachment

    [javac] location: class org.jbpm.DemoTaskService

    [javac]         context.addImport( "Attachment", Attachment.class );

    [javac]                                          ^

    [javac] C:\jBPM\jbpm-installer\task-service\src\org\jbpm\DemoTaskService.jav

a:95: cannot find symbol

    [javac] symbol  : class BooleanExpression

    [javac] location: class org.jbpm.DemoTaskService

    [javac]         context.addImport( "BooleanExpression", BooleanExpression.cl

ass );

    [javac]                                                 ^

    [javac] C:\jBPM\jbpm-installer\task-service\src\org\jbpm\DemoTaskService.jav

a:96: cannot find symbol

    [javac] symbol  : class Comment

    [javac] location: class org.jbpm.DemoTaskService

    [javac]         context.addImport( "Comment", Comment.class );

    [javac]                                       ^

    [javac] C:\jBPM\jbpm-installer\task-service\src\org\jbpm\DemoTaskService.jav

a:97: cannot find symbol

    [javac] symbol  : class Deadline

    [javac] location: class org.jbpm.DemoTaskService

    [javac]         context.addImport( "Deadline", Deadline.class );

    [javac]                                        ^

    [javac] C:\jBPM\jbpm-installer\task-service\src\org\jbpm\DemoTaskService.jav

a:98: cannot find symbol

    [javac] symbol  : class Deadlines

    [javac] location: class org.jbpm.DemoTaskService

    [javac]         context.addImport( "Deadlines", Deadlines.class );

    [javac]                                         ^

    [javac] C:\jBPM\jbpm-installer\task-service\src\org\jbpm\DemoTaskService.jav

a:99: cannot find symbol

    [javac] symbol  : class Delegation

    [javac] location: class org.jbpm.DemoTaskService

    [javac]         context.addImport( "Delegation", Delegation.class );

    [javac]                                          ^

    [javac] C:\jBPM\jbpm-installer\task-service\src\org\jbpm\DemoTaskService.jav

a:100: cannot find symbol

    [javac] symbol  : class Escalation

    [javac] location: class org.jbpm.DemoTaskService

    [javac]         context.addImport( "Escalation", Escalation.class );

    [javac]                                          ^

    [javac] C:\jBPM\jbpm-installer\task-service\src\org\jbpm\DemoTaskService.jav

a:101: cannot find symbol

    [javac] symbol  : class Group

    [javac] location: class org.jbpm.DemoTaskService

    [javac]         context.addImport( "Group", Group.class );

    [javac]                                     ^

    [javac] C:\jBPM\jbpm-installer\task-service\src\org\jbpm\DemoTaskService.jav

a:102: cannot find symbol

    [javac] symbol  : class I18NText

    [javac] location: class org.jbpm.DemoTaskService

    [javac]         context.addImport( "I18NText", I18NText.class );

    [javac]                                        ^

    [javac] C:\jBPM\jbpm-installer\task-service\src\org\jbpm\DemoTaskService.jav

a:103: cannot find symbol

    [javac] symbol  : class Notification

    [javac] location: class org.jbpm.DemoTaskService

    [javac]         context.addImport( "Notification", Notification.class );

    [javac]                                            ^

    [javac] C:\jBPM\jbpm-installer\task-service\src\org\jbpm\DemoTaskService.jav

a:104: cannot find symbol

    [javac] symbol  : class OrganizationalEntity

    [javac] location: class org.jbpm.DemoTaskService

    [javac]         context.addImport( "OrganizationalEntity", OrganizationalEnt

ity.class );

    [javac]                                                    ^

    [javac] C:\jBPM\jbpm-installer\task-service\src\org\jbpm\DemoTaskService.jav

a:105: cannot find symbol

    [javac] symbol  : class PeopleAssignments

    [javac] location: class org.jbpm.DemoTaskService

    [javac]         context.addImport( "PeopleAssignments", PeopleAssignments.cl

ass );

    [javac]                                                 ^

    [javac] C:\jBPM\jbpm-installer\task-service\src\org\jbpm\DemoTaskService.jav

a:106: cannot find symbol

    [javac] symbol  : class Reassignment

    [javac] location: class org.jbpm.DemoTaskService

    [javac]         context.addImport( "Reassignment", Reassignment.class );

    [javac]                                            ^

    [javac] C:\jBPM\jbpm-installer\task-service\src\org\jbpm\DemoTaskService.jav

a:107: cannot find symbol

    [javac] symbol  : class Status

    [javac] location: class org.jbpm.DemoTaskService

    [javac]         context.addImport( "Status", Status.class );

    [javac]                                      ^

    [javac] C:\jBPM\jbpm-installer\task-service\src\org\jbpm\DemoTaskService.jav

a:108: cannot find symbol

    [javac] symbol  : class Task

    [javac] location: class org.jbpm.DemoTaskService

    [javac]         context.addImport( "Task", Task.class );

    [javac]                                    ^

    [javac] C:\jBPM\jbpm-installer\task-service\src\org\jbpm\DemoTaskService.jav

a:109: cannot find symbol

    [javac] symbol  : class TaskData

    [javac] location: class org.jbpm.DemoTaskService

    [javac]         context.addImport( "TaskData", TaskData.class );

    [javac]                                        ^

    [javac] C:\jBPM\jbpm-installer\task-service\src\org\jbpm\DemoTaskService.jav

a:110: cannot find symbol

    [javac] symbol  : class TaskSummary

    [javac] location: class org.jbpm.DemoTaskService

    [javac]         context.addImport( "TaskSummary", TaskSummary.class );

    [javac]                                           ^

    [javac] C:\jBPM\jbpm-installer\task-service\src\org\jbpm\DemoTaskService.jav

a:111: cannot find symbol

    [javac] symbol  : class User

    [javac] location: class org.jbpm.DemoTaskService

    [javac]         context.addImport( "User", User.class );

    [javac]                                    ^

    [javac] C:\jBPM\jbpm-installer\task-service\src\org\jbpm\DemoTaskService.jav

a:113: cannot find symbol

    [javac] symbol  : variable MVEL

    [javac] location: class org.jbpm.DemoTaskService

    [javac]         return MVEL.executeExpression( compiler.compile( context ),

vars );

    [javac]                ^

    [javac] 68 errors

    [javac] 2 warnings