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問題
アップグレード中に、以下のようなエラーが発生する場合があります：
2023-03-29 08:09:14.891 ERROR [Framework Event Dispatcher: Equinox Container: 6a56b6f1-2524-4207-a9fb-dfe9b3dab41e][Framework:56] FrameworkEvent ERROR java.lang.IllegalArgumentException: Portlet must not be null at com.liferay.portal.security.permission.ResourceActionsImpl.populatePortletResource(ResourceActionsImpl.java:494) ~[portal-impl.jar:?] at com.liferay.object.internal.security.permission.resource.util.ObjectDefinitionResourcePermissionUtil.populateResourceActions(ObjectDefinitionResourcePermissionUtil.java:76) ~[?:?] at com.liferay.object.internal.deployer.ObjectDefinitionDeployerImpl.deploy(ObjectDefinitionDeployerImpl.java:186) ~[?:?] at com.liferay.object.service.impl.ObjectDefinitionLocalServiceImpl._addingObjectDefinitionDeployer(ObjectDefinitionLocalServiceImpl.java:808) ~[?:?] at com.liferay.object.service.impl.ObjectDefinitionLocalServiceImpl.setAopProxy(ObjectDefinitionLocalServiceImpl.java:594) ~[?:?] at com.liferay.portal.aop.internal.AopServiceRegistrar._getService(AopServiceRegistrar.java:146) ~[?:?] at com.liferay.portal.aop.internal.AopServiceRegistrar.register(AopServiceRegistrar.java:80) ~[?:?] at com.liferay.portal.aop.internal.AopServiceResolver.addAopServiceRegistrar(AopServiceResolver.java:38) ~[?:?] at com.liferay.portal.aop.internal.AopServiceManager$AopServiceServiceTrackerCustomizer.addingService(AopServiceManager.java:124) ~[?:?] at com.liferay.portal.aop.internal.AopServiceManager$AopServiceServiceTrackerCustomizer.addingService(AopServiceManager.java:96) ~[?:?] at org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:943) ~[org.eclipse.osgi.jar:?] ...
