repro steps:

install flutter sdk locally on machine and run the calc/example, flutter uses junction/symlinks during I believe snapcraft can't handle them well.

snapcraft stage source --use-lxd --verbosity debug snapcraft stage websocket --use-lxd --verbosity debug snapcraft stage packages --use-lxd --verbosity debug snapcraft stage liquid terminal --use-lxd --verbosity debug

cd packages/calc/example flutter build linux snapcraft stage liquid terminal --use-lxd --verbosity debug