📖 ~1 min read
Table of contents
Symptom & Impact
Snap application exits immediately or fails at startup.
Environment & Reproduction
Often occurs after interrupted snap refresh.
Root Cause Analysis
Incomplete revision switch or disconnected interfaces break runtime.
Quick Triage
Inspect pending changes and snapd health.
Step-by-Step Diagnosis
Validate active revisions and interface connections.
Solution – Primary Fix
Restart snapd, refresh snaps, and reconnect interfaces.
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Solution – Alternative Approaches
Revert to prior working snap revision.
Verification & Acceptance Criteria
App launches and no failed snap changes remain.
Rollback Plan
Temporarily hold refreshes while investigating root cause.
Prevention & Hardening
Schedule refresh windows and alert on snapd failures.
Related Errors & Cross-Refs
Frequently coincides with low free space under /var/lib/snapd.
Related tutorial: View the step-by-step tutorial for Ubuntu 22.04 LTS.
View all Ubuntu 22.04 LTS tutorials on the Tutorials Hub →
Browse all common problems & solutions on the Tutorials Hub.
References & Further Reading
Ubuntu snap and snapd troubleshooting docs.
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