Exit codes

The snap command uses the following exit codes. These are useful when scripting snap operations or diagnosing failures.

Code	Meaning	Description
0	Success	The command completed without error.
1	General error	The command failed for a reason not covered by a more specific exit code.
10	Retryable error	Another snap operation is in progress resulting in a snap-change-conflict. Wait for it to finish and try again.
20	Build error	mksquashfs failed when building a snap (e.g. during snap pack).
46	Internal error	The snap app binary dispatch failed. Either the /snap/bin/ symlink could not be resolved, or the snap app could not be run.
64	Usage error	Invalid flags, arguments, or an unknown command was provided.