The following error occurred at startup:
Unable to start OpenMRS. Error thrown was: org.openmrs.api.APIException: Service not found: interface org.openmrs.scheduler.SchedulerService
org.openmrs.module.ModuleException: Unable to start OpenMRS. Error thrown was: org.openmrs.api.APIException: Service not found: interface org.openmrs.scheduler.SchedulerService
	at org.openmrs.web.WebDaemon.startOpenmrs(WebDaemon.java:65)
	at org.openmrs.web.Listener.contextInitialized(Listener.java:196)
	at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4961)
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5455)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
	at java.util.concurrent.FutureTask.run(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)
Caused by: javax.servlet.ServletException: org.openmrs.api.APIException: Service not found: interface org.openmrs.scheduler.SchedulerService
	at org.openmrs.web.Listener.startOpenmrs(Listener.java:274)
	at org.openmrs.web.WebDaemon$1.run(WebDaemon.java:42)
Caused by: org.openmrs.api.APIException: Service not found: interface org.openmrs.scheduler.SchedulerService
	at org.openmrs.api.context.ServiceContext.getService(ServiceContext.java:660)
	at org.openmrs.api.context.ServiceContext.getSchedulerService(ServiceContext.java:275)
	at org.openmrs.api.context.Context.getSchedulerService(Context.java:486)
	at org.openmrs.module.web.WebModuleUtil.stopTasks(WebModuleUtil.java:370)
	at org.openmrs.module.web.WebModuleUtil.stopModule(WebModuleUtil.java:767)
	at org.openmrs.module.web.WebModuleUtil.shutdownModules(WebModuleUtil.java:710)
	at org.openmrs.web.Listener.performWebStartOfModules(Listener.java:675)
	at org.openmrs.web.Listener.performWebStartOfModules(Listener.java:635)