This error occurs when saving a new item with out setting the Item Type Metadata.
The item is still saved to the database, but it is difficult for my client to continue work flow.
This is because the easiest option is to navigate with the browser back button. This goes back to 'Add New Item' where there is the potential for re-saving the item multiple times.
Omeka v2.3.1
Here is the error log.
2016-02-17T08:56:00-07:00 ERR (3): exception 'Omeka_Record_Exception' with message 'There is no element "Dublin Core", "Type"!' in /home3/spanism4/public_html/collections/application/models/Mixin/ElementText.php:293
Stack trace:
#0 /home3/spanism4/public_html/collections/application/models/Mixin/ElementText.php(214): Mixin_ElementText->getElement('Dublin Core', 'Type')
#1 /home3/spanism4/public_html/collections/application/libraries/Omeka/Record/AbstractRecord.php(251): Mixin_ElementText->getElementTexts('Dublin Core', 'Type')
#2 /home3/spanism4/public_html/collections/application/libraries/Omeka/Record/AbstractRecord.php(210): Omeka_Record_AbstractRecord->delegateToMixins(Array, Array)
#3 /home3/spanism4/public_html/collections/application/views/helpers/Metadata.php(173): Omeka_Record_AbstractRecord->__call('getElementTexts', Array)
#4 /home3/spanism4/public_html/collections/application/views/helpers/Metadata.php(173): Item->getElementTexts('getElementTexts', Array)
#5 /home3/spanism4/public_html/collections/application/views/helpers/Metadata.php(139): Omeka_View_Helper_Metadata->_getElementText('Dublin Core', 'Type')
#6 /home3/spanism4/public_html/collections/application/views/helpers/Metadata.php(70): Omeka_View_Helper_Metadata->_getText(Object(Item), 'Dublin Core', 'Type')
#7 /home3/spanism4/public_html/collections/application/libraries/Zend/View/Abstract.php(350): Omeka_View_Helper_Metadata->metadata(Object(Item), Array)
#8 /home3/spanism4/public_html/collections/application/libraries/globals.php(2005): Zend_View_Abstract->__call('item', Array, Array)
#9 /home3/spanism4/public_html/collections/application/libraries/globals.php(2005): Omeka_View->metadata(Array, Array)
#10 /home3/spanism4/public_html/collections/admin/themes/default/items/browse.php(105): metadata()
#11 /home3/spanism4/public_html/collections/application/libraries/Omeka/View.php(117): include('/home3/spanism4...')
#12 /home3/spanism4/public_html/collections/application/libraries/Zend/View/Abstract.php(888): Omeka_View->_run('metadata', Array)
#13 /home3/spanism4/public_html/collections/application/libraries/Zend/Controller/Action/Helper/ViewRenderer.php(905): Zend_View_Abstract->render('item', Array, Array)
#14 /home3/spanism4/public_html/collections/application/libraries/Zend/Controller/Action/Helper/ViewRenderer.php(926): Zend_Controller_Action_Helper_ViewRenderer->renderScript('item', Array, Array)
#15 /home3/spanism4/public_html/collections/application/libraries/Zend/Controller/Action/Helper/ViewRenderer.php(965): Zend_Controller_Action_Helper_ViewRenderer->render('/home3/spanism4...')
#16 /home3/spanism4/public_html/collections/application/libraries/Zend/Controller/Action/HelperBroker.php(277): Zend_Controller_Action_Helper_ViewRenderer->postDispatch('items/browse.ph...')
#17 /home3/spanism4/public_html/collections/application/libraries/Zend/Controller/Action.php(527): Zend_Controller_Action_HelperBroker->notifyPostDispatch('items/browse.ph...', NULL)
#18 /home3/spanism4/public_html/collections/application/libraries/Zend/Controller/Dispatcher/Standard.php(308): Zend_Controller_Action->dispatch()
#19 /home3/spanism4/public_html/collections/application/libraries/Zend/Controller/Front.php(954): Zend_Controller_Dispatcher_Standard->dispatch()
#20 /home3/spanism4/public_html/collections/application/libraries/Zend/Application/Bootstrap/Bootstrap.php(105): Zend_Controller_Front->dispatch()
#21 /home3/spanism4/public_html/collections/application/libraries/Zend/Application.php(382): Zend_Application_Bootstrap_Bootstrap->run('browseAction')
#22 /home3/spanism4/public_html/collections/application/libraries/Omeka/Application.php(79): Zend_Application->run(Object(Zend_Controller_Request_Http), Object(Zend_Controller_Response_Http))
#23 /home3/spanism4/public_html/collections/admin/index.php(28): Omeka_Application->run()
#24 {main}
That's odd -- it's complaining that there is no Dublin Core Type element, but that should be there out of the box with Omeka.
When you add or edit an item, is there an input field for Type?
Not a field, but a tab item near the top, "Item Type Metadata". This is where the type is selected.
Also this error is occurring when the "Items" menu option is clicked to try and get a list of items. Type is not there to fill in the listing.
It sounds like there might be a couple things happening, made more confusing by the term 'type'. Dublin Core 'Type' and Omeka's Item Type Metadata are separate things. The error you sent refers to Dublin Core 'Type', which should be a field under Dublin Core on the Item edit page.
On the browse page with the list of Items, the Type column refers to the Item Type, not Dublin Core 'Type'.
So, when you say that the error is occurring on the list of items, is there another error in the log, or is it just that there is no Type information in that column?
Looks like this is my end. I thought that the metadata was part of the Dublin core. "Is Replaced By" is an extended field name. Now it looks like my attempt at changing field names has failed. xD
2016-02-17T12:27:58-07:00 ERR (3): exception 'Omeka_Record_Exception' with message 'There is no element "Dublin Core", "Is Replaced By"!' in /home3/spanism4/public_html/collections/application/models/Mixin/ElementText.php:293
Stack trace:
#0 /home3/spanism4/public_html/collections/application/models/Mixin/ElementText.php(214): Mixin_ElementText->getElement('Dublin Core', 'Is Replaced By')
#1 /home3/spanism4/public_html/collections/application/libraries/Omeka/Record/AbstractRecord.php(251): Mixin_ElementText->getElementTexts('Dublin Core', 'Is Replaced By')
#2 /home3/spanism4/public_html/collections/application/libraries/Omeka/Record/AbstractRecord.php(210): Omeka_Record_AbstractRecord->delegateToMixins(Array, Array)
#3 /home3/spanism4/public_html/collections/application/views/helpers/Metadata.php(173): Omeka_Record_AbstractRecord->__call('getElementTexts', Array)
#4 /home3/spanism4/public_html/collections/application/views/helpers/Metadata.php(173): Item->getElementTexts('getElementTexts', Array)
#5 /home3/spanism4/public_html/collections/application/views/helpers/Metadata.php(139): Omeka_View_Helper_Metadata->_getElementText('Dublin Core', 'Is Replaced By')
#6 /home3/spanism4/public_html/collections/application/views/helpers/Metadata.php(70): Omeka_View_Helper_Metadata->_getText(Object(Item), 'Dublin Core', 'Is Replaced By')
#7 /home3/spanism4/public_html/collections/application/libraries/Zend/View/Abstract.php(350): Omeka_View_Helper_Metadata->metadata(Object(Item), Array)
#8 /home3/spanism4/public_html/collections/application/libraries/globals.php(2005): Zend_View_Abstract->__call(Object(Item), Array, Array)
#9 /home3/spanism4/public_html/collections/application/libraries/globals.php(2005): Omeka_View->metadata(Array, Array)
#10 /home3/spanism4/public_html/collections/plugins/DublinCoreExtended/models/Output/ItemDcRdf.php(23): metadata()
#11 /home3/spanism4/public_html/collections/plugins/DublinCoreExtended/views/shared/items/browse.dc-rdf.php(5): Output_ItemDcRdf->itemToDcRdf('metadata', Array)
#12 /home3/spanism4/public_html/collections/application/libraries/Omeka/View.php(117): include('/home3/spanism4...')
#13 /home3/spanism4/public_html/collections/application/libraries/Zend/View/Abstract.php(888): Omeka_View->_run(Object(Item), Array, Array)
#14 /home3/spanism4/public_html/collections/application/libraries/Zend/Controller/Action/Helper/ViewRenderer.php(905): Zend_View_Abstract->render(Object(Item), Array, Array)
#15 /home3/spanism4/public_html/collections/application/libraries/Zend/Controller/Action/Helper/ViewRenderer.php(926): Zend_Controller_Action_Helper_ViewRenderer->renderScript(Object(Item))
#16 /home3/spanism4/public_html/collections/application/libraries/Zend/Controller/Action/Helper/ViewRenderer.php(965): Zend_Controller_Action_Helper_ViewRenderer->render('/home3/spanism4...')
#17 /home3/spanism4/public_html/collections/application/libraries/Zend/Controller/Action/HelperBroker.php(277): Zend_Controller_Action_Helper_ViewRenderer->postDispatch('items/browse.dc...')
#18 /home3/spanism4/public_html/collections/application/libraries/Zend/Controller/Action.php(527): Zend_Controller_Action_HelperBroker->notifyPostDispatch('items/browse.dc...', NULL)
#19 /home3/spanism4/public_html/collections/application/libraries/Zend/Controller/Dispatcher/Standard.php(308): Zend_Controller_Action->dispatch()
#20 /home3/spanism4/public_html/collections/application/libraries/Zend/Controller/Front.php(954): Zend_Controller_Dispatcher_Standard->dispatch()
#21 /home3/spanism4/public_html/collections/application/libraries/Zend/Application/Bootstrap/Bootstrap.php(105): Zend_Controller_Front->dispatch()
#22 /home3/spanism4/public_html/collections/application/libraries/Zend/Application.php(382): Zend_Application_Bootstrap_Bootstrap->run('browseAction')
#23 /home3/spanism4/public_html/collections/application/libraries/Omeka/Application.php(79): Zend_Application->run(Object(Zend_Controller_Request_Http), Object(Zend_Controller_Response_Http))
#24 /home3/spanism4/public_html/collections/index.php(23): Omeka_Application->run()
#25 {main}
Things do, sadly, seem to get weirder and weirder. The trace here looks like it is an error coming from one of the (rarely-used) output formats, that puts Omeka data into a simple RDF output.
But, it also says that the element, Dublin Core - Is Referenced By also doesn't exist.
When things get this odd, I often suspect a plugin might be adding chaos. So, I'd try deactivating all the plugins to see if that resolves anything. If so, try reactivating one-by-one to see if that identifies the culprit.