OpenMRS is not able to start.
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:195)
	at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:5010)
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5504)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
	at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901)
	at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877)
	at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:632)
	at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:1073)
	at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1857)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
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:275)
	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:668)
	at org.openmrs.api.context.ServiceContext.getSchedulerService(ServiceContext.java:282)
	at org.openmrs.api.context.Context.getSchedulerService(Context.java:494)
	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:672)
	at org.openmrs.web.Listener.performWebStartOfModules(Listener.java:632)
	at org.openmrs.web.Listener.startOpenmrs(Listener.java:267)
	... 1 more


See the server log for full output.