AppCenter is empty if apt update has never been run [$30 awarded] about appcenter HOT 8 CLOSED

https://www.bountysource.com/issues/37126277-appcenter-is-empty-if-apt-update-has-never-been-run

Launchpad Details: #LPC Daniel Fore - 2016-08-20 19:12:47 +0000

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Some progress has been made. As of now, if you restart (or otherwise kill appcenter) the issue will correct itself.

Jeremy seems to think that it might not be possible to solve under current packagekit API and it might be an upstream issue. He cites that it may possibly be related to https://bugs.launchpad.net/ubuntu/+source/gnome-software/+bug/1563155

Launchpad Details: #LPC Daniel Fore - 2016-08-29 16:02:30 +0000

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I'm trying to run Loki live from USB and have this problem. Removed appcentre, reboot, re-installed appcentre, reboot and still have the same problem. tried sudo apt update and get the following:
"Reading package lists... Done
E: Could not get lock /var/lib/apt/lists/lock - open (11: Resource temporarily unavailable)
E: Unable to lock directory /var/lib/apt/lists/"

Launchpad Details: #LPC jpdpza - 2016-09-19 07:11:36 +0000

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Locally killing the appcenter and then refreshing the cache: sudo appstreamcli refresh-cache --force solves the issue on next launch of the appcenter. Perhaps forcing a cache refresh on first boot would solve this issue?

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@brs17 is that the same as:

As of now, if you restart (or otherwise kill appcenter) the issue will correct itself.

?

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@cassidyjames I guess at least somewhat, what I was trying to point at is perhaps running appstreamcli refresh-cache --force upon first boot may resolve this issue and when the appcenter is opened for the first time.

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Could also run this the first time the app center is opened, and before GTK is initialized, I suppose?

new GLib.Subprocess.newv (
    {"pkexec", "appstreamcli", "refresh-cache", "--force"},
    GLib.SubprocessFlags.NONE
).wait ();

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Gonna drop from the Juno milestone since this was already an issue in Loki

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