com.webobjects.appserver._private.WODynamicElementCreationException

<er.extensions.components._private.ERXSwitchComponent> : cannot find component or dynamic element named SWMMailinglistRegistration

File Line # Method Package Bundle
ERXSwitchComponent.java 87 _realComponentWithName er.extensions.components._private ERExtensions
ERXSwitchComponent.java 134 appendToResponse er.extensions.components._private ERExtensions
WODynamicGroup.java 126 appendChildrenToResponse com.webobjects.appserver._private JavaWebObjects
ERXWORepetition.java 590 appendToResponse er.extensions.components._private ERExtensions
WODynamicGroup.java 126 appendChildrenToResponse com.webobjects.appserver._private JavaWebObjects
WODynamicGroup.java 136 appendToResponse com.webobjects.appserver._private JavaWebObjects
WOComponentContent.java 51 appendToResponse com.webobjects.appserver._private JavaWebObjects
WODynamicGroup.java 126 appendChildrenToResponse com.webobjects.appserver._private JavaWebObjects
WOGenericContainer.java 44 appendToResponse com.webobjects.appserver._private JavaWebObjects
WODynamicGroup.java 126 appendChildrenToResponse com.webobjects.appserver._private JavaWebObjects
WODynamicGroup.java 136 appendToResponse com.webobjects.appserver._private JavaWebObjects
WOComponent.java 1122 appendToResponse com.webobjects.appserver JavaWebObjects
ERXComponent.java 187 appendToResponse er.extensions.components ERExtensions
SWGenericSiteLook.java 56 appendToResponse concept SoloWeb
WOComponentReference.java 135 appendToResponse com.webobjects.appserver._private JavaWebObjects
ERXSwitchComponent.java 136 appendToResponse er.extensions.components._private ERExtensions
WOComponent.java 1122 appendToResponse com.webobjects.appserver JavaWebObjects
ERXComponent.java 187 appendToResponse er.extensions.components ERExtensions
WOComponent.java 1574 _appendPageToResponse com.webobjects.appserver JavaWebObjects
WOComponent.java 1543 _generateResponseInContext com.webobjects.appserver JavaWebObjects
WOComponent.java 1538 generateResponse com.webobjects.appserver JavaWebObjects
WOActionRequestHandler.java 278 _handleRequest com.webobjects.appserver._private JavaWebObjects
WOActionRequestHandler.java 161 handleRequest com.webobjects.appserver._private JavaWebObjects
ERXDirectActionRequestHandler.java 127 handleRequest er.extensions.appserver ERExtensions
WOApplication.java 1687 dispatchRequest com.webobjects.appserver JavaWebObjects
ERXApplication.java 2092 dispatchRequestImmediately er.extensions.appserver ERExtensions
ERXApplication.java 2057 dispatchRequest er.extensions.appserver ERExtensions
WOWorkerThread.java 144 runOnce com.webobjects.appserver._private JavaWebObjects
WOWorkerThread.java 226 run com.webobjects.appserver._private JavaWebObjects
Thread.java 745 run java.lang

The exception occurred in the application SW