OpenMRS can not start after uploading PatientDashboardApp module

The following error occurred at startup:
Unable to start OpenMRS. Error thrown was: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'serviceContext$child#21' defined in URL [jar:file:/usr/share/tomcat7/.OpenMRS/.openmrs-lib-cache/patientdashboardapp/patientdashboardapp.jar!/moduleApplicationContext.xml]: Cannot resolve reference to bean 'triageService' while setting bean property 'moduleService' with key [1]; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'triageService': Post-processing of the FactoryBean's object failed; nested exception is java.lang.LinkageError: loader constraint violation: loader (instance of org/openmrs/util/OpenmrsClassLoader) previously initiated loading for a different type with name "org/openmrs/module/hospitalcore/model/TriagePatientData"
org.openmrs.module.ModuleException: Unable to start OpenMRS. Error thrown was: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'serviceContext$child#21' defined in URL [jar:file:/usr/share/tomcat7/.OpenMRS/.openmrs-lib-cache/patientdashboardapp/patientdashboardapp.jar!/moduleApplicationContext.xml]: Cannot resolve reference to bean 'triageService' while setting bean property 'moduleService' with key [1]; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'triageService': Post-processing of the FactoryBean's object failed; nested exception is java.lang.LinkageError: loader constraint violation: loader (instance of org/openmrs/util/OpenmrsClassLoader) previously initiated loading for a different type with name "org/openmrs/module/hospitalcore/model/TriagePatientData"
	at org.openmrs.web.WebDaemon.startOpenmrs(WebDaemon.java:65)
	at org.openmrs.web.Listener.contextInitialized(Listener.java:180)
	at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:5068)
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5584)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:147)
	at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:899)
	at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:875)
	at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:652)
	at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:1091)
	at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1980)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
Caused by: javax.servlet.ServletException: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'serviceContext$child#21' defined in URL [jar:file:/usr/share/tomcat7/.OpenMRS/.openmrs-lib-cache/patientdashboardapp/patientdashboardapp.jar!/moduleApplicationContext.xml]: Cannot resolve reference to bean 'triageService' while setting bean property 'moduleService' with key [1]; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'triageService': Post-processing of the FactoryBean's object failed; nested exception is java.lang.LinkageError: loader constraint violation: loader (instance of org/openmrs/util/OpenmrsClassLoader) previously initiated loading for a different type with name "org/openmrs/module/hospitalcore/model/TriagePatientData"
	at org.openmrs.web.Listener.startOpenmrs(Listener.java:257)
	at org.openmrs.web.WebDaemon$1.run(WebDaemon.java:42)
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'serviceContext$child#21' defined in URL [jar:file:/usr/share/tomcat7/.OpenMRS/.openmrs-lib-cache/patientdashboardapp/patientdashboardapp.jar!/moduleApplicationContext.xml]: Cannot resolve reference to bean 'triageService' while setting bean property 'moduleService' with key [1]; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'triageService': Post-processing of the FactoryBean's object failed; nested exception is java.lang.LinkageError: loader constraint violation: loader (instance of org/openmrs/util/OpenmrsClassLoader) previously initiated loading for a different type with name "org/openmrs/module/hospitalcore/model/TriagePatientData"
	at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:326)
	at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:107)
	at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveManagedList(BeanDefinitionValueResolver.java:350)
	at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:154)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1417)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1158)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458)
	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:296)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:293)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:628)
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:932)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479)
	at org.openmrs.module.ModuleUtil.refreshApplicationContext(ModuleUtil.java:837)
	at org.openmrs.module.web.WebModuleUtil.refreshWAC(WebModuleUtil.java:962)
	at org.openmrs.web.Listener.performWebStartOfModules(Listener.java:627)
	at org.openmrs.web.Listener.performWebStartOfModules(Listener.java:606)
	at org.openmrs.web.Listener.startOpenmrs(Listener.java:249)
	... 1 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'triageService': Post-processing of the FactoryBean's object failed; nested exception is java.lang.LinkageError: loader constraint violation: loader (instance of org/openmrs/util/OpenmrsClassLoader) previously initiated loading for a different type with name "org/openmrs/module/hospitalcore/model/TriagePatientData"
	at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:165)
	at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.getObjectFromFactoryBean(FactoryBeanRegistrySupport.java:102)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getObjectForBeanInstance(AbstractBeanFactory.java:1468)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:249)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
	at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:320)
	... 20 more
Caused by: java.lang.LinkageError: loader constraint violation: loader (instance of org/openmrs/util/OpenmrsClassLoader) previously initiated loading for a different type with name "org/openmrs/module/hospitalcore/model/TriagePatientData"
	at java.lang.Class.getDeclaredMethods0(Native Method)
	at java.lang.Class.privateGetDeclaredMethods(Class.java:2701)
	at java.lang.Class.privateGetMethodRecursive(Class.java:3048)
	at java.lang.Class.getMethod0(Class.java:3018)
	at java.lang.Class.getMethod(Class.java:1784)
	at org.springframework.util.ClassUtils.getMostSpecificMethod(ClassUtils.java:780)
	at org.springframework.transaction.interceptor.AbstractFallbackTransactionAttributeSource.computeTransactionAttribute(AbstractFallbackTransactionAttributeSource.java:143)
	at org.springframework.transaction.interceptor.AbstractFallbackTransactionAttributeSource.getTransactionAttribute(AbstractFallbackTransactionAttributeSource.java:99)
	at org.springframework.transaction.interceptor.TransactionAttributeSourcePointcut.matches(TransactionAttributeSourcePointcut.java:37)
	at org.springframework.aop.support.AopUtils.canApply(AopUtils.java:223)
	at org.springframework.aop.support.AopUtils.canApply(AopUtils.java:262)
	at org.springframework.aop.support.AopUtils.findAdvisorsThatCanApply(AopUtils.java:294)
	at org.springframework.aop.framework.autoproxy.AbstractAdvisorAutoProxyCreator.findAdvisorsThatCanApply(AbstractAdvisorAutoProxyCreator.java:118)
	at org.springframework.aop.framework.autoproxy.AbstractAdvisorAutoProxyCreator.findEligibleAdvisors(AbstractAdvisorAutoProxyCreator.java:88)
	at org.springframework.aop.framework.autoproxy.AbstractAdvisorAutoProxyCreator.getAdvicesAndAdvisorsForBean(AbstractAdvisorAutoProxyCreator.java:69)
	at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.wrapIfNecessary(AbstractAutoProxyCreator.java:359)
	at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.postProcessAfterInitialization(AbstractAutoProxyCreator.java:322)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsAfterInitialization(AbstractAutowireCapableBeanFactory.java:409)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.postProcessObjectFromFactoryBean(AbstractAutowireCapableBeanFactory.java:1655)
	at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:162)
	... 25 more