Error on yaml_to_latex conversion

[Rajeev Verma]

Hi, while running the make command, I am getting the following error. What could possibly be the reason?
/yaml-to-latex.py -i metadata.yaml -o metadata.tex Traceback (most recent call last): File "./yaml-to-latex.py", line 93, in <module> content = generate_latex_metadata(filename_in, article) File "./yaml-to-latex.py", line 50, in generate_latex_metadata "".format(filename=filename, _=article, abstract=abstract)) AttributeError: 'str' object has no attribute 'name' Makefile:18: recipe for target 'metadata.tex' failed make: *** [metadata.tex] Error 1