I'm working with an Alfresco Labs E that I've upgraded from C to D in the past, so the data has gone through a couple of schema updates. I currently get the following error in the error log when I view any document in the document library…16:50:04,298 WARN [repo.jscript.ScriptLogger] Ignoring field "cm:author" as a field definition could not be located
16:50:04,862 WARN [repo.jscript.ScriptLogger] Ignoring field "cm:title" as a field definition could not be located
16:50:04,862 WARN [repo.jscript.ScriptLogger] Ignoring field "cm:description" as a field definition could not be located
Where are the field definitions set up, and is there any documentation on writing a field definition? Is there documentation on making new custom metadata fields?