@ -129,7 +129,7 @@ class Songbook:
def iter_errors(self):
"""Iterate over errors of book and book content."""
yield from self._errors
contentlist = self._config.get('content', list())
contentlist = self._config.get('content', content.ContentList())
yield from contentlist.iter_errors()
for item in contentlist:
if not hasattr(item, "iter_errors"):