Hi Martin, The issue seems to be due to an error in the XSD files where the term names are stated incorrectly – sampleValueSize vs sampleSizeValue, sampleValueUnit vs sampleSizeUnit: <xs:element name="sampleValueSize" type="xs:string" substitutionGroup="dwc:anyEventTerm"/> <xs:element name="sampleValueUnit" type="xs:string" substitutionGroup="dwc:anyEventTerm"/> <xs:element ref="dwc:sampleSizeValue" minOccurs="0"/> <xs:element ref="dwc:sampleSizeUnit" minOccurs="0"/> I’m CCing John who I assume has access to fix the files. Best regards, Éamonn From: tdwg-content-bounces@lists.tdwg.org [mailto:tdwg-content-bounces@lists.tdwg.org] On Behalf Of Mergen Patricia Sent: 05 April 2015 08:27 To: Seifert-Martin; tdwg-content@lists.tdwg.org Cc: secretary@tdwg.org Subject: Re: [tdwg-content] Problem when validating Simple Darwin Core Recordset file Dear Martin Thanks for your mail. I forward your mail to the experts list who may advice further. With my best wishes Pat Le 5 Avr. 2015 08:20, "Seifert-Martin" <Seifert-Martin@t-online.de> a écrit : Dear Madam or Sir, when validating a Simple Darwin Core Recordset file I get the following error messages: File: http://rs.tdwg.org/dwc/xsd/tdwg_dwc_simple.xsd, line 100, column 71: Cannot resolve the name 'dwc:sampleSizeValue' to a(n) 'element declaration' component. <xs:element ref="dwc:sampleSizeValue" minOccurs="0"/> File: http://rs.tdwg.org/dwc/xsd/tdwg_dwc_simple.xsd, line 101, column 70: Cannot resolve the name 'dwc:sampleSizeUnit' to a(n) 'element declaration' component. <xs:element ref="dwc:sampleSizeUnit" minOccurs="0"/> File: http://rs.tdwg.org/dwc/xsd/tdwg_dwcterms.xsd, line 206, column 67: Cannot resolve the name 'dwc:sampleSizeValue' to a(n) 'element declaration' component. <xs:element ref="dwc:sampleSizeValue" minOccurs="0"/> File: http://rs.tdwg.org/dwc/xsd/tdwg_dwcterms.xsd, line 207, column 66: Cannot resolve the name 'dwc:sampleSizeUnit' to a(n) 'element declaration' component. <xs:element ref="dwc:sampleSizeUnit" minOccurs="0"/> Please, would you forward this e-mail to one of your technicians. Kind regards, Martin Seifert