apt-file updateapt-fileを実行した後もキャッシュが空であると報告する理由を知っている人はいますかapt update？
[pop-os ~][I]% apt-file search /usr/lib/android-sdk/tools/bin/sdkmanager
E: The cache is empty. You need to run "apt update" first.
[pop-os ~][I]% apt-file update
Reading package lists... Done
E: Could not open lock file /var/lib/apt/lists/lock - open (13: Permission denied)
E: Unable to lock directory /var/lib/apt/lists/
W: Problem unlinking the file /var/cache/apt/pkgcache.bin - RemoveCaches (13: Permission denied)
W: Problem unlinking the file /var/cache/apt/srcpkgcache.bin - RemoveCaches (13: Permission denied)
[pop-os ~][I]% sudo !!
sudo apt-file update
Hit:1 http://apt.pop-os.org/proprietary cosmic InRelease
Hit:2 http://us.archive.ubuntu.com/ubuntu cosmic InRelease
Hit:3 http://us.archive.ubuntu.com/ubuntu cosmic-updates InRelease
Hit:4 http://ppa.launchpad.net/nextcloud-devs/client/ubuntu cosmic InRelease
Hit:5 http://us.archive.ubuntu.com/ubuntu cosmic-security InRelease
Hit:6 http://repository.spotify.com stable InRelease
Hit:7 http://us.archive.ubuntu.com/ubuntu cosmic-backports InRelease
Get:8 http://apt.pop-os.org/proprietary cosmic all Contents (deb) [102 kB]
Hit:9 http://ppa.launchpad.net/system76/pop/ubuntu cosmic InRelease
Get:10 http://us.archive.ubuntu.com/ubuntu cosmic amd64 Contents (deb) [40.9 MB]
Get:11 http://apt.pop-os.org/proprietary cosmic i386 Contents (deb) [276 B]
Get:12 http://apt.pop-os.org/proprietary cosmic amd64 Contents (deb) [2,605 kB]
Get:13 http://us.archive.ubuntu.com/ubuntu cosmic i386 Contents (deb) [40.2 MB]
Get:14 http://us.archive.ubuntu.com/ubuntu cosmic-updates i386 Contents (deb) [5,178 kB]
Get:15 http://us.archive.ubuntu.com/ubuntu cosmic-updates amd64 Contents (deb) [6,997 kB]
Get:16 http://us.archive.ubuntu.com/ubuntu cosmic-security i386 Contents (deb) [3,784 kB]
Get:17 http://us.archive.ubuntu.com/ubuntu cosmic-security amd64 Contents (deb) [5,296 kB]
Get:18 http://us.archive.ubuntu.com/ubuntu cosmic-backports amd64 Contents (deb) [3,773 B]
Get:19 http://us.archive.ubuntu.com/ubuntu cosmic-backports i386 Contents (deb) [3,772 B]
Fetched 105 MB in 21s (4,952 kB/s)
Reading package lists... Done
Building dependency tree
Reading state information... Done
148 packages can be upgraded. Run 'apt list --upgradable' to see them.
sudo -E apt-file update 20.30s user 1.16s system 95% cpu 22.585 total
[pop-os ~][I]% apt-file search /usr/lib/android-sdk/tools/bin/sdkmanager
E: The cache is empty. You need to run "apt update" first.
[pop-os ~][I]% apt update
Reading package lists... Done
E: Could not open lock file /var/lib/apt/lists/lock - open (13: Permission denied)
E: Unable to lock directory /var/lib/apt/lists/
W: Problem unlinking the file /var/cache/apt/pkgcache.bin - RemoveCaches (13: Permission denied)
W: Problem unlinking the file /var/cache/apt/srcpkgcache.bin - RemoveCaches (13: Permission denied)
[pop-os ~][I]% sudo !!
sudo apt update
Hit:1 http://apt.pop-os.org/proprietary cosmic InRelease
Hit:2 http://us.archive.ubuntu.com/ubuntu cosmic InRelease
Hit:3 http://us.archive.ubuntu.com/ubuntu cosmic-updates InRelease
Hit:4 http://us.archive.ubuntu.com/ubuntu cosmic-security InRelease
Hit:5 http://ppa.launchpad.net/nextcloud-devs/client/ubuntu cosmic InRelease
Hit:6 http://us.archive.ubuntu.com/ubuntu cosmic-backports InRelease
Get:7 http://apt.pop-os.org/proprietary cosmic i386 Contents (deb) [276 B]
Hit:8 http://repository.spotify.com stable InRelease
Get:9 http://apt.pop-os.org/proprietary cosmic all Contents (deb) [102 kB]
Hit:10 http://ppa.launchpad.net/system76/pop/ubuntu cosmic InRelease
Get:11 http://us.archive.ubuntu.com/ubuntu cosmic amd64 Contents (deb) [40.9 MB]
Get:12 http://apt.pop-os.org/proprietary cosmic amd64 Contents (deb) [2,605 kB]
Get:13 http://us.archive.ubuntu.com/ubuntu cosmic i386 Contents (deb) [40.2 MB]
Get:14 http://us.archive.ubuntu.com/ubuntu cosmic-updates i386 Contents (deb) [5,178 kB]
Get:15 http://us.archive.ubuntu.com/ubuntu cosmic-updates amd64 Contents (deb) [6,997 kB]
Get:16 http://us.archive.ubuntu.com/ubuntu cosmic-security amd64 Contents (deb) [5,296 kB]
Get:17 http://us.archive.ubuntu.com/ubuntu cosmic-security i386 Contents (deb) [3,784 kB]
Get:18 http://us.archive.ubuntu.com/ubuntu cosmic-backports i386 Contents (deb) [3,772 B]
Get:19 http://us.archive.ubuntu.com/ubuntu cosmic-backports amd64 Contents (deb) [3,773 B]
Fetched 105 MB in 21s (4,963 kB/s)
Reading package lists... Done
Building dependency tree
Reading state information... Done
148 packages can be upgraded. Run 'apt list --upgradable' to see them.
sudo -E apt update 20.24s user 1.15s system 95% cpu 22.470 total
[pop-os ~][I]% apt-file search /usr/lib/android-sdk/tools/bin/sdkmanager
E: The cache is empty. You need to run "apt update" first.
[pop-os ~][I]% sudo !!
sudo apt-file search /usr/lib/android-sdk/tools/bin/sdkmanager
E: The cache is empty. You need to run "apt update" first.
DistroはPop!_OS（Ubuntuの派生物）ですが、Pop!_OSタグが見つかりません。
ベストアンサー1
/var/lib/apt/lists/Pop!_OS 22.04でaptを削除してから再度更新することで、この問題を解決できました。
sudo rm -rf /var/lib/apt/lists/*_*
sudo apt-get update
apt-file search sdkmanager
ここでヒントを見つけました。https://unix.stackexchange.com/a/575356/243015
編集：apt-get install <foo>apt-fileを実行した後、再び動作が終了します。