### Bug Description When packing a snap with `core20` using `snapcraft pack`, the error message is not informative. ### To Reproduce Use the simple `snap/snapcraft.yaml` ```yaml name: my-snap-name # you probably want to 'snapcraft register <name>' base: core20 # the base snap is the execution environment for this snap version: '0.1' # just for humans, typically '1.2+git' or '1.3.2' summary: Single-line elevator pitch for your amazing snap # 79 char long summary description: | This is my-snap's description. You have a paragraph or two to tell the most important story about your snap. Keep it under 100 words though, we live in tweetspace and your description wants to look good in the snap store. grade: devel # must be 'stable' to release into candidate/stable channels confinement: devmode # use 'strict' once you have the right plugs and slots parts: my-part: # See 'snapcraft plugins' plugin: nil ``` and run `snapcraft pack` ### Environment ``` Name Version Rev Tracking Publisher Notes lxd 6.1-efad198 29943 latest/stable canonical✓ - snapcraft 8.3.2 12378 latest/stable/… canonical✓ classic ``` ### snapcraft.yaml ```shell name: my-snap-name # you probably want to 'snapcraft register <name>' base: core20 # the base snap is the execution environment for this snap version: '0.1' # just for humans, typically '1.2+git' or '1.3.2' summary: Single-line elevator pitch for your amazing snap # 79 char long summary description: | This is my-snap's description. You have a paragraph or two to tell the most important story about your snap. Keep it under 100 words though, we live in tweetspace and your description wants to look good in the snap store. grade: devel # must be 'stable' to release into candidate/stable channels confinement: devmode # use 'strict' once you have the right plugs and slots parts: my-part: # See 'snapcraft plugins' plugin: nil ``` ### Relevant log output ```shell snapcraft pack Usage: snapcraft pack [OPTIONS] DIRECTORY Try 'snapcraft pack -h' for help. Error: Missing argument 'DIRECTORY'. ``` ### Additional context Switching to `core22` worked