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:
error: Installed (but unpackaged) file(s) found:
   /usr/share/icons/hicolor/16x16/apps/org.kde.merkuro.calendar.png
   /usr/share/icons/hicolor/16x16/apps/org.kde.merkuro.mail.png
   /usr/share/icons/hicolor/24x24/apps/org.kde.merkuro.calendar.png
   /usr/share/icons/hicolor/24x24/apps/org.kde.merkuro.mail.png
   /usr/share/icons/hicolor/32x32/apps/org.kde.merkuro.calendar.png
   /usr/share/icons/hicolor/32x32/apps/org.kde.merkuro.mail.png
    Installed (but unpackaged) file(s) found:
   /usr/share/icons/hicolor/16x16/apps/org.kde.merkuro.calendar.png
   /usr/share/icons/hicolor/16x16/apps/org.kde.merkuro.mail.png
   /usr/share/icons/hicolor/24x24/apps/org.kde.merkuro.calendar.png
   /usr/share/icons/hicolor/24x24/apps/org.kde.merkuro.mail.png
   /usr/share/icons/hicolor/32x32/apps/org.kde.merkuro.calendar.png
   /usr/share/icons/hicolor/32x32/apps/org.kde.merkuro.mail.png]: [Multiple unpackaged files were found.
]
=============
[ERROR: Exception(/var/lib/copr-rpmbuild/results/merkuro-24.01.95~1.gitcd92535-1.fc39.src.rpm) Config(fedora-39-x86_64) 3 minutes 13 seconds]: [Build exception report.]
=============
[Copr build error: Build failed]: [Final error printout, indicating that the build has failed.]

Issue: Multiple files were not tracked by the spec file, while being installed. This would cause issues during package installation, and or removal.
Resolution: Make sure that all installed files are tracked. If necessary, prune installed files, and make sure that only necessary files are installed.