Qubes R4.0 cannot launch any VMs

[anoadragon453]

Qubes OS version:

R4.0 rc4

Affected TemplateVMs:

dom0

---

Steps to reproduce the behavior:

• Install Qubes, all is fine
• Try to start a VM through the terminal as Qubes Manager doesn't launch

Expected behavior:

• VM Opens

Actual behavior:

• qvm-start crashes

General notes:

Output for launching sys-net:

Traceback (most recent call last):
  File "/usr/bin/qvm-start", line 5, in <module>
    sys.exit(main())
  File "/usr/lib/python3.5/site-packages/qubesadmin/tools/qvm_start.py", line 158, in main
    args = parser.parse_args(args, app=app)
  File "/usr/lib/python3.5/site-packages/qubesadmin/tools/__init__.py", line 389, in parse_args
    action.parse_qubes_app(self, namespace)
  File "/usr/lib/python3.5/site-packages/qubesadmin/tools/__init__.py", line 176, in parse_qubes_app
    namespace.domains += [app.domains[vm_name]]
  File "/usr/lib/python3.5/site-packages/qubesadmin/app.py", line 86, in __getitem__
    if not self.app.blind_mode and item not in self:
  File "/usr/lib/python3.5/site-packages/qubesadmin/app.py", line 100, in __contains__
    self.refresh_cache()
  File "/usr/lib/python3.5/site-packages/qubesadmin/app.py", line 60, in refresh_cache
    'admin.vm.List'
  File "/usr/lib/python3.5/site-packages/qubesadmin/app.py", line 474, in qubesd_call
    client_socket.sendall(call_arg.encode('ascii'))
OSError: [Errno 107] Transport endpoint is not connected

Output for launching qubes-qube-manager:

line: client_socket.sendall(call_arg.encode('ascii'))
func: qubesd_call
line no.: 474
file: /usr/lib/python3.5/site-packages/qubesadmin/app.py
----
line: 'admin.vm.List'
func: refresh_cache
line no.: 60
file: /usr/lib/python3.5/site-packages/qubesadmin/app.py
----
line: self.refresh_cache()
func: __iter__
line no.: 108
file: /usr/lib/python3.5/site-packages/qubesadmin/app.py
----
line: return [vm for vm in self.qubes_app.domains]
func: <listcomp>
line no.: 396
file: /usr/lib/python3.5/site-packages/qubesmanager/qube_manager.py
----
line: return [vm for vm in self.qubes_app.domains]
func: get_vms_list
line no.: 396
file: /usr/lib/python3.5/site-packages/qubesmanager/qube_manager.py
----
line: vms_list = self.get_vms_list()
func: fill_table
line no.: 409
file: /usr/lib/python3.5/site-packages/qubesmanager/qube_manager.py
----
line: self.fill_table()
func: __init__
line no.: 362
file: /usr/lib/python3.5/site-packages/qubesmanager/qube_manager.py
----
line: manager_window = VmManagerWindow(qubes_app, qt_app)
func: main
line no.: 1182
file: /usr/lib/python3.5/site-packages/qubesmanager/qube_manager.py
----
line: load_entry_point('qubesmanager==4.0.13', 'console_scripts', 'qubes-qube-manager')()
func: <module>
line no.: 9
file: /bin/qubes-qube-manager

---

Related issues:

I was also unable to launch VMs on RC3.

Laptop is HP Spectre 15T, Processor i7-8550u.