Bugfix.

Author: shorowit

HPXMLtoOpenStudio/measure.xml

@@ -3,8 +3,8 @@
   <schema_version>3.1</schema_version>
   <name>hpxm_lto_openstudio</name>
   <uid>b1543b30-9465-45ff-ba04-1d1f85e763bc</uid>
-  <version_id>2a640b5c-4456-4d45-8516-46cc8fb8f0c9</version_id>
-  <version_modified>2025-02-03T16:58:04Z</version_modified>
+  <version_id>bd5c3b3f-ccda-4dd5-b16a-1b4f7a4d69e4</version_id>
+  <version_modified>2025-02-03T19:22:20Z</version_modified>
   <xml_checksum>D8922A73</xml_checksum>
   <class_name>HPXMLtoOpenStudio</class_name>
   <display_name>HPXML to OpenStudio Translator</display_name>
@@ -327,7 +327,7 @@
       <filename>defaults.rb</filename>
       <filetype>rb</filetype>
       <usage_type>resource</usage_type>
-      <checksum>ABB105BE</checksum>
+      <checksum>CF7C5504</checksum>
     </file>
     <file>
       <filename>energyplus.rb</filename>

HPXMLtoOpenStudio/resources/defaults.rb

@@ -27,9 +27,10 @@ module Defaults
   # @param convert_shared_systems [Boolean] Whether to convert shared systems to equivalent in-unit systems per ANSI/RESNET/ICC 301
   # @return [Array<Hash, Hash>] Maps of HPXML::Zones => DesignLoadValues object, HPXML::Spaces => DesignLoadValues object
   def self.apply(runner, hpxml, hpxml_bldg, weather, schedules_file: nil, convert_shared_systems: true)
-    eri_version = hpxml.header.eri_calculation_versions[0]
-    if eri_version.nil?
+    if hpxml.header.eri_calculation_versions.nil? || hpxml.header.eri_calculation_versions.empty?
       eri_version = 'latest'
+    else
+      eri_version = hpxml.header.eri_calculation_versions[0]
     end
     if eri_version == 'latest'
       eri_version = Constants::ERIVersions[-1]