Given following log snippets, their explanation, and nothing else, explain what failure, if any, occurred during build of this package.

  Snippets are in a format of [X] : [Y], where [X] is a log snippet, and [Y] is the explanation.

  Snippets are delimited with '================'.

  Drawing on information from all snippets, provide a concise explanation of the issue and recommend a solution.

  Explanation of the issue, and recommended solution, should take a handful of sentences.

  Snippets:

  [RPM build errors:
    source_date_epoch_from_changelog set but %changelog is missing
    File must begin with "/": %{_userunitdir}/fnott.service]: [It shows the build errors.]

Issue:   source_date_epoch_from_changelog set but %changelog is missing
    File must begin with "/": %{_userunitdir}/fnott.service
Resolution: Provide %changelog. And fix broken macros by installing the appropriate package: systemd-rpm-macros.