Ubuntu
gnome-software package

Impossible to install snap: Unexpected change ID returned

Bug #1721740 reported by Jean-Baptiste Lallement
16
This bug affects 2 people
Affects Status Importance Assigned to Milestone
gnome-software (Ubuntu)
Fix Released
Critical
Robert Ancell
Artful
Fix Released
Critical
Robert Ancell

Bug Description

with core 16-2.28.1 from candidate

Test Case
1. In gnome-software install a snap
2. When the polkit auth dialog shows up do nothing and wait for at least 5 minutes
3. After 5 minutes,, type your password and proceed with the installation

Actual result
The installation fails with this message: "Impossible to install snap: Unexpected change ID returned"

Expected result
Installation is successful

ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: gnome-software 3.26.0-0ubuntu3
ProcVersionSignature: Ubuntu 4.13.0-12.13-generic 4.13.3
Uname: Linux 4.13.0-12-generic x86_64
ApportVersion: 2.20.7-0ubuntu2
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Fri Oct 6 12:19:23 2017
InstallationDate: Installed on 2014-07-23 (1170 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
InstalledPlugins:
 gnome-software-plugin-flatpak N/A
 gnome-software-plugin-limba N/A
 gnome-software-plugin-snap 3.26.0-0ubuntu3
ProcEnviron:
 TERM=screen-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=fr_FR.UTF-8
 SHELL=/bin/bash
SourcePackage: gnome-software
UpgradeStatus: Upgraded to artful on 2017-06-13 (114 days ago)

Revision history for this message
Jean-Baptiste Lallement (jibel) wrote :
Revision history for this message
Robert Ancell (robert-ancell) wrote :

This seems to cause a simlar bug for removals (bug 1721765).

Changed in gnome-software (Ubuntu):
status: New → Triaged
importance: Undecided → Critical
Revision history for this message
Robert Ancell (robert-ancell) wrote :

This seems to have been fixed by the solution for bug 1718170.

Revision history for this message
Robert Ancell (robert-ancell) wrote :

The cause appears to be multiple threads accessing the same SnapdClient object at the same time. This causes multiple requests to be sent at the same time and snapd-glib has a bug that doesn't handle the replies correctly. The solution in bug 1718170 is to make a SnapdClient for each thread, and avoids this issue.

Robert Ancell (robert-ancell)
Changed in gnome-software (Ubuntu):
assignee: nobody → Robert Ancell (robert-ancell)
Revision history for this message
Sebastien Bacher (seb128) wrote :

The other bug has been resolved, does it mean that one should be closed as well since you said it was the same issue?

Sebastien Bacher (seb128)
tags: added: gnome-software-snap
Revision history for this message
Jean-Baptiste Lallement (jibel) wrote :

I'm closing this report. I cannot reproduce with latest versions.

Changed in gnome-software (Ubuntu Artful):
status: Triaged → Fix Released
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