'undef' for 'version' is not a valid version. (version) [Validation: 1.3];Expected a list structure (author) [Validation: 1.3];Missing mandatory field, 'abstract' (abstract) [Validation: 1.3];Missing mandatory field, 'author' (author) [Validation: 1.3];value is an undefined string (abstract) [Validation: 1.3]
