When difyctl encounters an error, it writes a message to stderr. With -o json active, errors are also single-line JSON with a stable code field and an actionable hint.
For the full exit-code table and error object shape, see Output Formats and Exit Codes.
Version Compatibility
version_skew (difyctl and the server don’t match)
difyctl ships with each Dify release and is matched to a server version, so a version change on either side can leave the two out of sync. It surfaces in two ways, both exiting 6:
- Your Dify server was upgraded and your existing
difyctl is now too old. The server rejects it with HTTP 426 and prints an upgrade message.
- Your
difyctl is newer than your server, so it stops before sending the request, reporting that the server is older than it supports.
-
Confirm it’s a version mismatch:
A
Compatibility: incompatible … line, or an upgrade message, confirms it.
-
Reinstall
difyctl so it matches your server: set DIFY_VERSION to your server’s Dify release tag (or omit it if your server runs the latest release), then re-run the install script. See Install for details.
Exit code: 6.
Authentication Errors
auth_expired
Your session has expired and difyctl can no longer make authenticated requests.
-
Re-authenticate:
-
Re-run the failed command.
Exit code: 4.
not_logged_in
No active session exists for the requested host.
-
Sign in:
-
Re-run the failed command.
Exit code: 4.
access_denied
You denied the sign-in request, or canceled it before approving, so nothing was authorized.
Re-run and approve the request:
Exit code: 4.
App Errors
App not found (HTTP 404)
The App ID you specified doesn’t exist or isn’t accessible to your token. Surfaces as server_4xx_other with HTTP status 404.
-
List apps you can access:
-
Verify the ID and re-run.
Exit code: 1.
Service API disabled (HTTP 403 from server)
The app exists, but its Service API is turned off in the Dify console. The app owner must enable it. A 403 surfaces as server_4xx_other.
Exit code: 1.
Workflow Errors
Workflow validation error (HTTP 422)
A Workflow app rejected your inputs. The error message lists which required inputs are missing or invalid.
-
Inspect the app’s input schema:
-
Update your
--inputs JSON to match.
Exit code: 1. Last modified on July 16, 2026