I ran into the same issue building microstack on s390x.
~/microstack$ sudo snapcraft --use-lxd
The LXD provider is offered as a technology preview for early adopters.
The command line interface, container names or lifecycle handling may change in upcoming releases.
Launching a container.
An error occurred with the instance when trying to launch with 'LXD': The requested image couldn't be found.
Ensure that 'LXD' is setup correctly and try again.
There are buildd images for s390x already available. /cloud- images. ubuntu. com/buildd/ daily/bionic/ 20191209/
https:/
I ran into the same issue building microstack on s390x.
~/microstack$ sudo snapcraft --use-lxd
The LXD provider is offered as a technology preview for early adopters.
The command line interface, container names or lifecycle handling may change in upcoming releases.
Launching a container.
An error occurred with the instance when trying to launch with 'LXD': The requested image couldn't be found.
Ensure that 'LXD' is setup correctly and try again.