Process 'initial' has no valid process reference

Hi all

I'm using ivy 7 to work with casemap, when i create it and run, i got this error:

ch.ivyteam.ivy.request.RequestException: Process 'initial' has no valid process reference.
    at ch.ivyteam.ivy.request.RequestException$RequestExceptionBuilder.build(RequestException.java:166)
    at ch.ivyteam.ivy.webserver.internal.AbstractProcessModelVersionServlet.doRespondAsSystem(AbstractProcessModelVersionServlet.java:38)
    at ch.ivyteam.ivy.webserver.internal.AbstractServlet.prepareRespondAsSystem(AbstractServlet.java:230)
    at ch.ivyteam.ivy.webserver.internal.AbstractServlet.access$3(AbstractServlet.java:212)
    at ch.ivyteam.ivy.webserver.internal.AbstractServlet$2.call(AbstractServlet.java:190)
    at ch.ivyteam.ivy.security.internal.SecurityManager.executeAsSystem(SecurityManager.java:1313)
    at ch.ivyteam.ivy.webserver.internal.AbstractServlet.doService(AbstractServlet.java:184)
    at ch.ivyteam.ivy.webserver.internal.AbstractServlet.doGet(AbstractServlet.java:168)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:635)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at ch.ivyteam.ivy.webserver.internal.exception.IvyExceptionFilter.doFilter(IvyExceptionFilter.java:49)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at ch.ivyteam.ivy.webserver.internal.IvyFilter.doFilterInternal(IvyFilter.java:247)
    at ch.ivyteam.ivy.webserver.internal.IvyFilter.doFilter(IvyFilter.java:152)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at ch.ivyteam.ivy.webserver.internal.IvyExecuteAsSystemFilter$1.call(IvyExecuteAsSystemFilter.java:45)
    at ch.ivyteam.ivy.webserver.internal.IvyExecuteAsSystemFilter$1.call(IvyExecuteAsSystemFilter.java:1)
    at ch.ivyteam.ivy.security.internal.SecurityManager.executeAsSystem(SecurityManager.java:1313)
    at ch.ivyteam.ivy.webserver.internal.IvyExecuteAsSystemFilter.doFilter(IvyExecuteAsSystemFilter.java:39)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.apache.catalina.filters.HttpHeaderSecurityFilter.doFilter(HttpHeaderSecurityFilter.java:124)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at ch.ivyteam.ivy.webserver.internal.startup.IvyEngineUnavailableFilter.doFilter(IvyEngineUnavailableFilter.java:46)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:89)
    at com.google.inject.servlet.ManagedFilterPipeline.dispatch(ManagedFilterPipeline.java:120)
    at com.google.inject.servlet.GuiceFilter.doFilter(GuiceFilter.java:135)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:478)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:80)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
    at ch.ivyteam.ivy.webserver.internal.PerformanceLogValve.invoke(PerformanceLogValve.java:55)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)
    at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:799)
    at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
    at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868)
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1457)
    at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.IllegalArgumentException: Process 'initial' has no valid process reference.
    at ch.ivyteam.ivy.casemap.runtime.service.restricted.CaseMapApplicationService.getValidStartElement(CaseMapApplicationService.java:106)
    at ch.ivyteam.ivy.casemap.runtime.service.restricted.CaseMapApplicationService.getValidStartElement(CaseMapApplicationService.java:94)
    at ch.ivyteam.ivy.casemap.runtime.service.restricted.CaseMapApplicationService.startCaseMap(CaseMapApplicationService.java:57)
    at ch.ivyteam.ivy.casemap.runtime.service.restricted.CaseMapApplicationService.startCaseMap(CaseMapApplicationService.java:51)
    at ch.ivyteam.ivy.webserver.internal.IvyCaseMapServlet.handleProcessModelVersionRequest(IvyCaseMapServlet.java:34)
    at ch.ivyteam.ivy.webserver.internal.AbstractProcessModelVersionServlet.handleRequest(AbstractProcessModelVersionServlet.java:87)
    at ch.ivyteam.ivy.webserver.internal.AbstractProcessModelVersionServlet.processPmvRequest(AbstractProcessModelVersionServlet.java:63)
    at ch.ivyteam.ivy.webserver.internal.AbstractProcessModelVersionServlet.doRespondAsSystem(AbstractProcessModelVersionServlet.java:30)
    ... 51 more

Does anyone know why this happen? you can download example here

Thanks a lot