catch json parsing error

generator/generator_base.rb

@@ -27,7 +27,13 @@ def load_resources
 
             # We should consider using the native Ruby models instead of JSON
             # There were problems with round-tripping certain SearchParameters though
-            new_resource_json = JSON.parse(File.read(resource))
+
+            begin
+              new_resource_json = JSON.parse(File.read(resource))
+            rescue JSON::ParserError # failed to parse json
+              next
+            end
+
             new_resource = FHIR.from_contents(File.read(resource))
             next unless new_resource.present?
 

generator/sequence_metadata.rb

@@ -25,12 +25,15 @@ class SequenceMetadata
       def initialize(profile, all_search_parameter_metadata, capability_statement = nil)
         @profile = profile
         @tests = []
+        @search_parameter_metadata = []
         return unless capability_statement.present?
 
         @capabilities = capability_statement['rest']
           .find { |rest| rest['mode'] == 'server' }['resource']
           .find { |resource| resource['type'] == profile['type'] }
 
+        return unless capabilities.present?
+
         @search_parameter_metadata = capabilities['searchParam']&.map do |param|
           all_search_parameter_metadata.find { |param_metadata| param_metadata.url == param['definition'] }
         end
@@ -100,6 +103,8 @@ def basic_searches_from_capability_statement
       end
 
       def search_combinations_from_capability_statement
+        return [] unless capabilities.present?
+
         search_combo_url = 'http://hl7.org/fhir/StructureDefinition/capabilitystatement-search-parameter-combination'
         capabilities['extension']
           &.select { |ext| ext['url'] == search_combo_url }