Overview 💥
This error appears when an Inspector cannot extract the file bundle (ZIP archive) it downloaded before running. The message:
End of central directory record signature not found.
Indicates that the ZIP file was incomplete, corrupted, or otherwise invalid at the time the Agent attempted to unpack it.
This is a generic ZIP extraction error, and because it’s not specific to any one Inspector, it may occur on any Inspector.
Why This Happens 🤔
This error is typically caused by one of the following:
The Inspector bundle was not fully downloaded.
The bundle was corrupted during transfer.
The archive failed validation when the Agent attempted to extract it.
Because this error is universal and not tied to a specific Inspector type, the root cause varies from case to case.
Recommended Resolution 🧑🏫
Liongard provides a simple and reliable method to fix this in most cases:
✅ Re-run the Inspector using “Debug + Clear Cache”
This forces the Agent to:
clear the existing (possibly corrupted/incomplete) bundle
download a fresh Inspector bundle
attempt the extraction again
This resolves the majority of occurrences.
✅ If the Error Continues
If re-running with Debug + Clear Cache still shows the same error:
The underlying cause likely depends on that specific Inspector, its configuration, or the Agent environment.
Review the Inspector’s run logs for clues (network interruptions, permission issues, storage failures, etc.).
Further investigation will be case-specific.
At this point, you may need targeted troubleshooting based on:
Inspector type
Agent environment
Network path or proxy settings
Any other errors shown in the logs
If you’re unsure, open a Liongard Support ticket with the Inspector name, timestamp, and logs.
Key Notes 📝
This error does not indicate a Liongard system-wide issue.
It is a universal ZIP extraction error and may happen sporadically.
“Debug + Clear Cache” is the correct first step in all cases.
Additional troubleshooting varies depending on the Inspector type and environment.