Traceback (most recent call last):


 "/usr/local/Cellar/ocrmypdf/10.2.0/libexec/lib/python3.8/site-packages/ocrmypdf/_sync.py", line 356, in run_pipeline

exec_concurrent(context)


 "/usr/local/Cellar/ocrmypdf/10.2.0/libexec/lib/python3.8/site-packages/ocrmypdf/_sync.py", line 293, in exec_concurrent

pdf = post_process(pdf, context)


 "/usr/local/Cellar/ocrmypdf/10.2.0/libexec/lib/python3.8/site-packages/ocrmypdf/_sync.py", line 234, in post_process

pdf_out = metadata_fixup(pdf_out, context)


 "/usr/local/Cellar/ocrmypdf/10.2.0/libexec/lib/python3.8/site-packages/ocrmypdf/_pipeline.py", line 766, in metadata_fixup

del meta['dc:title']


 "/usr/local/Cellar/ocrmypdf/10.2.0/libexec/lib/python3.8/site-packages/pikepdf/models/metadata.py", line 389, in __exit__

self._apply_changes()


 "/usr/local/Cellar/ocrmypdf/10.2.0/libexec/lib/python3.8/site-packages/pikepdf/models/metadata.py", line 455, in _apply_changes

self._update_docinfo()


 "/usr/local/Cellar/ocrmypdf/10.2.0/libexec/lib/python3.8/site-packages/pikepdf/models/metadata.py", line 411, in _update_docinfo

value = converter.docinfo_from_xmp(value)


 "/usr/local/Cellar/ocrmypdf/10.2.0/libexec/lib/python3.8/site-packages/pikepdf/models/metadata.py", line 172, in docinfo_from_xmp

return '; '.join(xmp_val)
TypeError: sequence item 0: expected str instance, NoneType found

Traceback (most recent call last):


 "<stdin>", line 1, in <module>
TypeError: __init__() got an unexpected keyword argument 'c'
