[Desktop-packages] [Bug 2061918] Re: package thunderbird 2:1snap1-0ubuntu1 failed to install/upgrade: new thunderbird package pre-installation script subprocess returned error exit status 1
The initial problem should have addressed at the archive level where we removed the transitional libglib2.0-0 -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to thunderbird in Ubuntu. https://bugs.launchpad.net/bugs/2061918 Title: package thunderbird 2:1snap1-0ubuntu1 failed to install/upgrade: new thunderbird package pre-installation script subprocess returned error exit status 1 Status in thunderbird package in Ubuntu: Confirmed Bug description: This happened during an upgrade from Mantic to Noble. ProblemType: Package DistroRelease: Ubuntu 24.04 Package: thunderbird 2:1snap1-0ubuntu1 ProcVersionSignature: Ubuntu 6.8.0-22.22-generic 6.8.1 Uname: Linux 6.8.0-22-generic x86_64 NonfreeKernelModules: nvidia_modeset wl nvidia zfs ApportVersion: 2.28.0-0ubuntu1 Architecture: amd64 CasperMD5CheckResult: unknown Date: Tue Apr 16 13:15:42 2024 ErrorMessage: new thunderbird package pre-installation script subprocess returned error exit status 1 InstallationDate: Installed on 2018-08-10 (2076 days ago) InstallationMedia: Ubuntu-Server 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725) Python3Details: /usr/bin/python3.12, Python 3.12.3, python3-minimal, 3.12.3-0ubuntu1 PythonDetails: N/A RelatedPackageVersions: dpkg 1.22.6ubuntu6 apt 2.7.14build2 SnapChanges: IDStatus Spawn Ready Summary 3563 Error 2024-04-16T13:15:26-07:00 2024-04-16T13:15:42-07:00 Install "thunderbird" snap 3564 Done2024-04-16T13:22:00-07:00 2024-04-16T13:22:09-07:00 Install "thunderbird" snap SourcePackage: thunderbird Title: package thunderbird 2:1snap1-0ubuntu1 failed to install/upgrade: new thunderbird package pre-installation script subprocess returned error exit status 1 UpgradeStatus: Upgraded to noble on 2024-04-16 (0 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/2061918/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
[Desktop-packages] [Bug 2061918] Re: package thunderbird 2:1snap1-0ubuntu1 failed to install/upgrade: new thunderbird package pre-installation script subprocess returned error exit status 1
** Tags removed: need-duplicate-check -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to thunderbird in Ubuntu. https://bugs.launchpad.net/bugs/2061918 Title: package thunderbird 2:1snap1-0ubuntu1 failed to install/upgrade: new thunderbird package pre-installation script subprocess returned error exit status 1 Status in thunderbird package in Ubuntu: Confirmed Bug description: This happened during an upgrade from Mantic to Noble. ProblemType: Package DistroRelease: Ubuntu 24.04 Package: thunderbird 2:1snap1-0ubuntu1 ProcVersionSignature: Ubuntu 6.8.0-22.22-generic 6.8.1 Uname: Linux 6.8.0-22-generic x86_64 NonfreeKernelModules: nvidia_modeset wl nvidia zfs ApportVersion: 2.28.0-0ubuntu1 Architecture: amd64 CasperMD5CheckResult: unknown Date: Tue Apr 16 13:15:42 2024 ErrorMessage: new thunderbird package pre-installation script subprocess returned error exit status 1 InstallationDate: Installed on 2018-08-10 (2076 days ago) InstallationMedia: Ubuntu-Server 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725) Python3Details: /usr/bin/python3.12, Python 3.12.3, python3-minimal, 3.12.3-0ubuntu1 PythonDetails: N/A RelatedPackageVersions: dpkg 1.22.6ubuntu6 apt 2.7.14build2 SnapChanges: IDStatus Spawn Ready Summary 3563 Error 2024-04-16T13:15:26-07:00 2024-04-16T13:15:42-07:00 Install "thunderbird" snap 3564 Done2024-04-16T13:22:00-07:00 2024-04-16T13:22:09-07:00 Install "thunderbird" snap SourcePackage: thunderbird Title: package thunderbird 2:1snap1-0ubuntu1 failed to install/upgrade: new thunderbird package pre-installation script subprocess returned error exit status 1 UpgradeStatus: Upgraded to noble on 2024-04-16 (0 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/2061918/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
[Desktop-packages] [Bug 2061918] Re: package thunderbird 2:1snap1-0ubuntu1 failed to install/upgrade: new thunderbird package pre-installation script subprocess returned error exit status 1
I managed to unbreak my system (in case anyone stumbles here looking for help) after reporting bug 2063219 Julian suggested installing libglib2.0-0t64_2.80.0-6ubuntu1_amd64.deb manually downloaded from the archive with dpkg, which I did. Then checked the debs in /var/cache/apt/archives/*.deb were only from the release upgrade (not from previous updates) by correlating with my /var/log/dpkg.log package update timings. sudo dpkg --install /var/cache/apt/archives/*.deb. # ran this twice sudo apt --fix-broken install. # this now runs successfully sudo apt update sudo apt dist-upgrade # to continue the broken mantic to noble upgrade liblxc-common 1:5.0.1-0ubuntu7 and liblxc1 1:5.0.1-0ubuntu7 have a colliding /usr/lib/x86_64-linux-gnu/lxc/rootfs/README sudo apt --fix-broken install. # resolved above by removing liblxc1 sudo apt dist-upgrade sudo apt install ubuntu-desktop^ sudo apt dist-upgrade After all that, it's "fixed". Thanks Julian <3 -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to thunderbird in Ubuntu. https://bugs.launchpad.net/bugs/2061918 Title: package thunderbird 2:1snap1-0ubuntu1 failed to install/upgrade: new thunderbird package pre-installation script subprocess returned error exit status 1 Status in thunderbird package in Ubuntu: Confirmed Bug description: This happened during an upgrade from Mantic to Noble. ProblemType: Package DistroRelease: Ubuntu 24.04 Package: thunderbird 2:1snap1-0ubuntu1 ProcVersionSignature: Ubuntu 6.8.0-22.22-generic 6.8.1 Uname: Linux 6.8.0-22-generic x86_64 NonfreeKernelModules: nvidia_modeset wl nvidia zfs ApportVersion: 2.28.0-0ubuntu1 Architecture: amd64 CasperMD5CheckResult: unknown Date: Tue Apr 16 13:15:42 2024 ErrorMessage: new thunderbird package pre-installation script subprocess returned error exit status 1 InstallationDate: Installed on 2018-08-10 (2076 days ago) InstallationMedia: Ubuntu-Server 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725) Python3Details: /usr/bin/python3.12, Python 3.12.3, python3-minimal, 3.12.3-0ubuntu1 PythonDetails: N/A RelatedPackageVersions: dpkg 1.22.6ubuntu6 apt 2.7.14build2 SnapChanges: IDStatus Spawn Ready Summary 3563 Error 2024-04-16T13:15:26-07:00 2024-04-16T13:15:42-07:00 Install "thunderbird" snap 3564 Done2024-04-16T13:22:00-07:00 2024-04-16T13:22:09-07:00 Install "thunderbird" snap SourcePackage: thunderbird Title: package thunderbird 2:1snap1-0ubuntu1 failed to install/upgrade: new thunderbird package pre-installation script subprocess returned error exit status 1 UpgradeStatus: Upgraded to noble on 2024-04-16 (0 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/2061918/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
[Desktop-packages] [Bug 2061918] Re: package thunderbird 2:1snap1-0ubuntu1 failed to install/upgrade: new thunderbird package pre-installation script subprocess returned error exit status 1
Julian had an idea on how to fix this on IRC: 07:12 < juliank> Ah yes, to solve the specific instance of the thunderbird snap and similar ones, one could also add Depends: libglib2.0-0t64 to their deb2snap packages -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to thunderbird in Ubuntu. https://bugs.launchpad.net/bugs/2061918 Title: package thunderbird 2:1snap1-0ubuntu1 failed to install/upgrade: new thunderbird package pre-installation script subprocess returned error exit status 1 Status in thunderbird package in Ubuntu: Confirmed Bug description: This happened during an upgrade from Mantic to Noble. ProblemType: Package DistroRelease: Ubuntu 24.04 Package: thunderbird 2:1snap1-0ubuntu1 ProcVersionSignature: Ubuntu 6.8.0-22.22-generic 6.8.1 Uname: Linux 6.8.0-22-generic x86_64 NonfreeKernelModules: nvidia_modeset wl nvidia zfs ApportVersion: 2.28.0-0ubuntu1 Architecture: amd64 CasperMD5CheckResult: unknown Date: Tue Apr 16 13:15:42 2024 ErrorMessage: new thunderbird package pre-installation script subprocess returned error exit status 1 InstallationDate: Installed on 2018-08-10 (2076 days ago) InstallationMedia: Ubuntu-Server 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725) Python3Details: /usr/bin/python3.12, Python 3.12.3, python3-minimal, 3.12.3-0ubuntu1 PythonDetails: N/A RelatedPackageVersions: dpkg 1.22.6ubuntu6 apt 2.7.14build2 SnapChanges: IDStatus Spawn Ready Summary 3563 Error 2024-04-16T13:15:26-07:00 2024-04-16T13:15:42-07:00 Install "thunderbird" snap 3564 Done2024-04-16T13:22:00-07:00 2024-04-16T13:22:09-07:00 Install "thunderbird" snap SourcePackage: thunderbird Title: package thunderbird 2:1snap1-0ubuntu1 failed to install/upgrade: new thunderbird package pre-installation script subprocess returned error exit status 1 UpgradeStatus: Upgraded to noble on 2024-04-16 (0 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/2061918/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
[Desktop-packages] [Bug 2061918] Re: package thunderbird 2:1snap1-0ubuntu1 failed to install/upgrade: new thunderbird package pre-installation script subprocess returned error exit status 1
*should be changed. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to thunderbird in Ubuntu. https://bugs.launchpad.net/bugs/2061918 Title: package thunderbird 2:1snap1-0ubuntu1 failed to install/upgrade: new thunderbird package pre-installation script subprocess returned error exit status 1 Status in thunderbird package in Ubuntu: Confirmed Bug description: This happened during an upgrade from Mantic to Noble. ProblemType: Package DistroRelease: Ubuntu 24.04 Package: thunderbird 2:1snap1-0ubuntu1 ProcVersionSignature: Ubuntu 6.8.0-22.22-generic 6.8.1 Uname: Linux 6.8.0-22-generic x86_64 NonfreeKernelModules: nvidia_modeset wl nvidia zfs ApportVersion: 2.28.0-0ubuntu1 Architecture: amd64 CasperMD5CheckResult: unknown Date: Tue Apr 16 13:15:42 2024 ErrorMessage: new thunderbird package pre-installation script subprocess returned error exit status 1 InstallationDate: Installed on 2018-08-10 (2076 days ago) InstallationMedia: Ubuntu-Server 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725) Python3Details: /usr/bin/python3.12, Python 3.12.3, python3-minimal, 3.12.3-0ubuntu1 PythonDetails: N/A RelatedPackageVersions: dpkg 1.22.6ubuntu6 apt 2.7.14build2 SnapChanges: IDStatus Spawn Ready Summary 3563 Error 2024-04-16T13:15:26-07:00 2024-04-16T13:15:42-07:00 Install "thunderbird" snap 3564 Done2024-04-16T13:22:00-07:00 2024-04-16T13:22:09-07:00 Install "thunderbird" snap SourcePackage: thunderbird Title: package thunderbird 2:1snap1-0ubuntu1 failed to install/upgrade: new thunderbird package pre-installation script subprocess returned error exit status 1 UpgradeStatus: Upgraded to noble on 2024-04-16 (0 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/2061918/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
[Desktop-packages] [Bug 2061918] Re: package thunderbird 2:1snap1-0ubuntu1 failed to install/upgrade: new thunderbird package pre-installation script subprocess returned error exit status 1
I think release upgrader settings changed. To do deb2snap transitions first before upgrade happens. Because during upgrade, packages are inconsistent, and snap hooks must be deffered until they are safe to execute on the system. Note all other deb2snap transitions were always graceful and would attempt transition later if snap configuration fails during upgrade. See old LXD deb2snap .deb logic. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to thunderbird in Ubuntu. https://bugs.launchpad.net/bugs/2061918 Title: package thunderbird 2:1snap1-0ubuntu1 failed to install/upgrade: new thunderbird package pre-installation script subprocess returned error exit status 1 Status in thunderbird package in Ubuntu: Confirmed Bug description: This happened during an upgrade from Mantic to Noble. ProblemType: Package DistroRelease: Ubuntu 24.04 Package: thunderbird 2:1snap1-0ubuntu1 ProcVersionSignature: Ubuntu 6.8.0-22.22-generic 6.8.1 Uname: Linux 6.8.0-22-generic x86_64 NonfreeKernelModules: nvidia_modeset wl nvidia zfs ApportVersion: 2.28.0-0ubuntu1 Architecture: amd64 CasperMD5CheckResult: unknown Date: Tue Apr 16 13:15:42 2024 ErrorMessage: new thunderbird package pre-installation script subprocess returned error exit status 1 InstallationDate: Installed on 2018-08-10 (2076 days ago) InstallationMedia: Ubuntu-Server 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725) Python3Details: /usr/bin/python3.12, Python 3.12.3, python3-minimal, 3.12.3-0ubuntu1 PythonDetails: N/A RelatedPackageVersions: dpkg 1.22.6ubuntu6 apt 2.7.14build2 SnapChanges: IDStatus Spawn Ready Summary 3563 Error 2024-04-16T13:15:26-07:00 2024-04-16T13:15:42-07:00 Install "thunderbird" snap 3564 Done2024-04-16T13:22:00-07:00 2024-04-16T13:22:09-07:00 Install "thunderbird" snap SourcePackage: thunderbird Title: package thunderbird 2:1snap1-0ubuntu1 failed to install/upgrade: new thunderbird package pre-installation script subprocess returned error exit status 1 UpgradeStatus: Upgraded to noble on 2024-04-16 (0 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/2061918/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
[Desktop-packages] [Bug 2061918] Re: package thunderbird 2:1snap1-0ubuntu1 failed to install/upgrade: new thunderbird package pre-installation script subprocess returned error exit status 1
Status changed to 'Confirmed' because the bug affects multiple users. ** Changed in: thunderbird (Ubuntu) Status: New => Confirmed -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to thunderbird in Ubuntu. https://bugs.launchpad.net/bugs/2061918 Title: package thunderbird 2:1snap1-0ubuntu1 failed to install/upgrade: new thunderbird package pre-installation script subprocess returned error exit status 1 Status in thunderbird package in Ubuntu: Confirmed Bug description: This happened during an upgrade from Mantic to Noble. ProblemType: Package DistroRelease: Ubuntu 24.04 Package: thunderbird 2:1snap1-0ubuntu1 ProcVersionSignature: Ubuntu 6.8.0-22.22-generic 6.8.1 Uname: Linux 6.8.0-22-generic x86_64 NonfreeKernelModules: nvidia_modeset wl nvidia zfs ApportVersion: 2.28.0-0ubuntu1 Architecture: amd64 CasperMD5CheckResult: unknown Date: Tue Apr 16 13:15:42 2024 ErrorMessage: new thunderbird package pre-installation script subprocess returned error exit status 1 InstallationDate: Installed on 2018-08-10 (2076 days ago) InstallationMedia: Ubuntu-Server 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725) Python3Details: /usr/bin/python3.12, Python 3.12.3, python3-minimal, 3.12.3-0ubuntu1 PythonDetails: N/A RelatedPackageVersions: dpkg 1.22.6ubuntu6 apt 2.7.14build2 SnapChanges: IDStatus Spawn Ready Summary 3563 Error 2024-04-16T13:15:26-07:00 2024-04-16T13:15:42-07:00 Install "thunderbird" snap 3564 Done2024-04-16T13:22:00-07:00 2024-04-16T13:22:09-07:00 Install "thunderbird" snap SourcePackage: thunderbird Title: package thunderbird 2:1snap1-0ubuntu1 failed to install/upgrade: new thunderbird package pre-installation script subprocess returned error exit status 1 UpgradeStatus: Upgraded to noble on 2024-04-16 (0 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/2061918/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
[Desktop-packages] [Bug 2061918] Re: package thunderbird 2:1snap1-0ubuntu1 failed to install/upgrade: new thunderbird package pre-installation script subprocess returned error exit status 1
The issue sounds like more a snapd problem - Make snap "thunderbird" (460) available to the system (cannot cleanup failed attempt at making snap "thunderbird" available to the system: cannot update-desktop-database "update-desktop-database: error while loading shared libraries: libglib-2.0.so.0: cannot open shared object file: No such file or directory\n": exit status 127) -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to thunderbird in Ubuntu. https://bugs.launchpad.net/bugs/2061918 Title: package thunderbird 2:1snap1-0ubuntu1 failed to install/upgrade: new thunderbird package pre-installation script subprocess returned error exit status 1 Status in thunderbird package in Ubuntu: New Bug description: This happened during an upgrade from Mantic to Noble. ProblemType: Package DistroRelease: Ubuntu 24.04 Package: thunderbird 2:1snap1-0ubuntu1 ProcVersionSignature: Ubuntu 6.8.0-22.22-generic 6.8.1 Uname: Linux 6.8.0-22-generic x86_64 NonfreeKernelModules: nvidia_modeset wl nvidia zfs ApportVersion: 2.28.0-0ubuntu1 Architecture: amd64 CasperMD5CheckResult: unknown Date: Tue Apr 16 13:15:42 2024 ErrorMessage: new thunderbird package pre-installation script subprocess returned error exit status 1 InstallationDate: Installed on 2018-08-10 (2076 days ago) InstallationMedia: Ubuntu-Server 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725) Python3Details: /usr/bin/python3.12, Python 3.12.3, python3-minimal, 3.12.3-0ubuntu1 PythonDetails: N/A RelatedPackageVersions: dpkg 1.22.6ubuntu6 apt 2.7.14build2 SnapChanges: IDStatus Spawn Ready Summary 3563 Error 2024-04-16T13:15:26-07:00 2024-04-16T13:15:42-07:00 Install "thunderbird" snap 3564 Done2024-04-16T13:22:00-07:00 2024-04-16T13:22:09-07:00 Install "thunderbird" snap SourcePackage: thunderbird Title: package thunderbird 2:1snap1-0ubuntu1 failed to install/upgrade: new thunderbird package pre-installation script subprocess returned error exit status 1 UpgradeStatus: Upgraded to noble on 2024-04-16 (0 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/2061918/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
[Desktop-packages] [Bug 2061918] Re: package thunderbird 2:1snap1-0ubuntu1 failed to install/upgrade: new thunderbird package pre-installation script subprocess returned error exit status 1
This ended up causing my release upgrade to go burst into flames. That's documented in https://bugs.launchpad.net/ubuntu/+source/ubuntu-release- upgrader/+bug/2061923 . -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to thunderbird in Ubuntu. https://bugs.launchpad.net/bugs/2061918 Title: package thunderbird 2:1snap1-0ubuntu1 failed to install/upgrade: new thunderbird package pre-installation script subprocess returned error exit status 1 Status in thunderbird package in Ubuntu: New Bug description: This happened during an upgrade from Mantic to Noble. ProblemType: Package DistroRelease: Ubuntu 24.04 Package: thunderbird 2:1snap1-0ubuntu1 ProcVersionSignature: Ubuntu 6.8.0-22.22-generic 6.8.1 Uname: Linux 6.8.0-22-generic x86_64 NonfreeKernelModules: nvidia_modeset wl nvidia zfs ApportVersion: 2.28.0-0ubuntu1 Architecture: amd64 CasperMD5CheckResult: unknown Date: Tue Apr 16 13:15:42 2024 ErrorMessage: new thunderbird package pre-installation script subprocess returned error exit status 1 InstallationDate: Installed on 2018-08-10 (2076 days ago) InstallationMedia: Ubuntu-Server 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725) Python3Details: /usr/bin/python3.12, Python 3.12.3, python3-minimal, 3.12.3-0ubuntu1 PythonDetails: N/A RelatedPackageVersions: dpkg 1.22.6ubuntu6 apt 2.7.14build2 SnapChanges: IDStatus Spawn Ready Summary 3563 Error 2024-04-16T13:15:26-07:00 2024-04-16T13:15:42-07:00 Install "thunderbird" snap 3564 Done2024-04-16T13:22:00-07:00 2024-04-16T13:22:09-07:00 Install "thunderbird" snap SourcePackage: thunderbird Title: package thunderbird 2:1snap1-0ubuntu1 failed to install/upgrade: new thunderbird package pre-installation script subprocess returned error exit status 1 UpgradeStatus: Upgraded to noble on 2024-04-16 (0 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/2061918/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
