No bean named 'nullPGItemModel' is defined

Question

JHeadstart Application Generator (build 10.1.3.0.97):
After trying to add a lov, I get the following error message:
Could not instantiate JhsApplicationGenerator class: No bean named 'nullPGItemModel' is defined: org.springframework.beans.factory.xml.XmlBeanFactory defining beans [applicationLayoutGenerator,facesConfigGenerator,regionMetaDataProcessor,includesGenerator,menuGenerator,nlsGenerator,pageGenerator,treeGenerator,generatorContext,findPageNameFormat,findPage,wizardFindPage,formPageNameFormat,formPage,wizardFormPage,formRegionPage,wizardFormRegionPage,selectPageNameFormat,selectPage,wizardSelectPage,treeFormPage,treePage,tablePageNameFormat,tablePage,wizardTablePage,lovTablePage,parentShuttlePage,wizardParentShuttlePage,intersectionShuttlePage,wizardIntersectionShuttlePage,formPageComponent,tablePageComponent,selectPageComponent,parentShuttlePageComponent,intersectionShuttlePageComponent,pgItemModelHelper,textInputPGItemModel,dateFieldPGItemModel,dateTimeFieldPGItemModel,secretFieldPGItemModel,fileUploadPGItemModel,fileDownloadPGItemModel,imagePGItemModel,editorPGItemModel,displayFieldPGItemModel,dropDownListPGItemModel,checkBoxPGItemModel,radio-verticalPGItemModel,radio-horizontalPGItemModel,hiddenPGItemModel,lovPGItemModel,pgGroupModel,pgDynamicDomainModel,pgStaticDomainModel,pgItemRegionModel,pgGroupRegionModel,stackedPGRegionContainerModel,separatePagesPGRegionContainerModel,horizontalPGRegionContainerModel,verticalPGRegionContainerModel,searchManagedBeanModel,dependsOnItemManagedBeanModel,dependsOnSearchItemManagedBeanModel,lovItemManagedBeanModel,lovItemInTableManagedBeanModel,editorItemManagedBeanModel,lovItemInAdvancedSearchManagedBeanModel,lovItemInQuickSearchManagedBeanModel,lovPageManagedBeanModel,fileItemInTableManagedBeanModel,mediaItemInTableManagedBeanModel,checkboxInTableManagedBeanModel,treeManagedBeanModel,parentShuttleManagedBeanModel,intersectionShuttleManagedBeanModel,collectionModelManagedBeanModel,queryBindParamsManagedBeanModel,queryBindParamsDomainManagedBeanModel,defaultValuesManagedBeanModel,wizardPageManagedBeanModel,wizardPageListManagedBeanModel,breadcrumbManagedBeanModel,customManagedBeanModel,velocityInitializer,formGroupLayoutFactory,tableGroupLayoutFactory,table-formGroupLayoutFactory,select-formGroupLayoutFactory,tree-formGroupLayoutFactory,treeGroupLayoutFactory,parent-shuttleGroupLayoutFactory,intersection-shuttleGroupLayoutFactory,pgModelFactory,templateBindingsFactory,pgModelValidator]; root of BeanFactory hierarchy

Answer 1

This error is displayed when you forgot to enter the display type for an item. You should see a warning icon in the Application Definition Editor at the corresponding group/item that indicates a required field is missing a value.
We will make this more robust in the next release, by explicitly raising a useful error message.
Steven Davelaar,
JHeadstart Team.