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:

  [No matching package to install: 'python3dist(xmlschema) >= 2.2.3']: [Required package `python3dist(xmlschema) >= 2.2.3` couldn't be found.]

Issue: Dependencies couldn't be satisfied.
Resolution: Check presence of dependencies in installed repositories. If possible, add package to repository or install repository providing it.