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:

  [ 'tags': [],
 'task_id': '9069244-fedora-eln-x86_64',
 'timeout': 18000,]: [The task is for Fedora ELN.]
=============
[ 'git_repo': 'https://copr-dist-git.fedorainfracloud.org/git/zdohnal/qpdf/R-qpdf',]: [It is a task in Copr repository]
=============
[Failed to resolve the transaction:
No match for argument: R-Rcpp-devel
No match for argument: R-askpass
No match for argument: R-curl
No match for argument: R-devel
No match for argument: R-testthat]: [DNF transaction error about missing packages]

Issue: Some of the required packages were not found in repositories when building for Fedora ELN in Copr.
Resolution: There are possible causes:
1. the missing packages are not in repositories at all - add them into repositories and rerun the build,
2. there is typo in their names - search for them with "dnf search", fix the package names in SPEC file and reupload the srpm in copr to rebuild it
3. the packages are present in eln-build repository, which is not present in Copr - you have to add repository link into specific chroot via Project Settings -> Project Details -> Build Options -> Chroots -> <chroot you want> -> Edit -> insert the link into 'Repos:' box.

How to find the link - go to /etc/mock/templates/fedora-eln.tpl, find the section '[local]' and take the url from option 'baseurl'.