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:

  [Not all dependencies satisfied
Error: Some packages could not be found.]: [The error type.]
=============
[No matching package to install: 'poetry'
No matching package to install: 'python3-flask-admin'
No matching package to install: 'python3-flask-oidc >= 2.0.0'
No matching package to install: 'python3-flask-xml-rpc'
No matching package to install: 'python3-mrtparse'
No matching package to install: 'python3-sqlalchemy-helpers']: [Missing dependencies]

Issue: There are unpackaged dependencies.
Resolution: You need to package the dependencies first.