Merge pull request #591 from IanCa/develop

Add better load_schema_version error

hed/errors/error_reporter.py

@@ -395,16 +395,17 @@ def get_exception_issue_string(issues, title=None):
         str: A str containing printable version of the issues or ''.
 
     """
-
     issue_str = ''
     if issues:
-        translated_messages = []
+        issue_list = []
         for issue in issues:
-            if isinstance(issue, str):
-                translated_messages.append(f"ERROR: {issue}.")
-            else:
-                translated_messages.append(f"ERROR: {issue[1]}.\n    Source Line: {issue[0]}")
-        issue_str += '\n' + '\n'.join(translated_messages)
+            this_str = f"{issue['message']}"
+            if 'code' in issue:
+                this_str = f"{issue['code']}:" + this_str
+            if 'line_number' in issue:
+                this_str = this_str + f"\n\tLine number {issue['line_number']}: {issue.get('line', '')} "
+            issue_list.append(this_str)
+        issue_str += '\n' + '\n'.join(issue_list)
     if title:
         issue_str = title + '\n' + issue_str
     return issue_str

hed/schema/hed_schema_io.py

@@ -152,6 +152,8 @@ def _load_schema_version(xml_version=None, xml_folder=None):
         if e.error_type == HedExceptions.FILE_NOT_FOUND:
             hed_cache.cache_xml_versions()
             final_hed_xml_file = hed_cache.get_hed_version_path(xml_version, library_name, xml_folder)
+            if not final_hed_xml_file:
+                raise HedFileError(HedExceptions.FILE_NOT_FOUND, f"HED version '{xml_version}' not found in cache: {hed_cache.get_cache_directory()}", filename=xml_folder)
             hed_schema = load_schema(final_hed_xml_file)
         else:
             raise e