@Rex, The snapd couldn't finished the initialize, even after several days. I think something block the system seed.loaded. Thanks!
$ snap changes ID Status Spawn Ready Summary 1 Doing 5 days ago, at 03:39 EDT - Initialize system state $ snap info core name: core summary: snapd runtime environment publisher: Canonical✓ license: unset description: | The core runtime environment for snapd type: core snap-id: 99T7MUlRhtI3U0QFgl5mXXESAiSwt776 tracking: stable refresh-date: 5 days ago, at 03:40 EDT channels: stable: 16-2.39 2019-05-22 (6964) 92MB - candidate: 16-2.39 2019-05-07 (6964) 92MB - beta: 16-2.39 2019-05-03 (6964) 92MB - edge: 16-2.39+git1309.5707258 2019-05-27 (7103) 92MB - installed: 16-2.38.1 (6818) 93MB core $ snap version snap 2.38.1 snapd 2.38.1 series 16 ubuntu 18.04 kernel 4.15.0-1039-oem -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1828604 Title: Lenovo T490S and X390 GM do not have Firefox.App store install errors out To manage notifications about this bug go to: https://bugs.launchpad.net/snapd/+bug/1828604/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs