alibaba/nacos · error · IllegalArgumentException
The latest label is server-managed
Error message
The latest label is server-managed
What it means
Error "The latest label is server-managed" thrown in alibaba/nacos.
Source
Thrown at api/src/main/java/com/alibaba/nacos/api/ai/utils/AgentValidationUtils.java:175
* @throws IllegalArgumentException when invalid
*/
public static void validateLabel(String label) {
if (label == null || label.length() > MAX_LABEL_LENGTH
|| !LABEL_PATTERN.matcher(label).matches()) {
throw new IllegalArgumentException("Invalid label: " + label);
}
}
/**
* Validate a client-writable version label.
*
* @param label version label
* @throws IllegalArgumentException when invalid or reserved
*/
public static void validateNonLatestLabel(String label) {
validateLabel(label);
if ("latest".equals(label)) {
throw new IllegalArgumentException("The latest label is server-managed");
}
}
/**
* Validate a transport token without changing its case.
*
* @param transport transport token
* @throws IllegalArgumentException when invalid
*/
public static void validateTransport(String transport) {
if (transport == null || transport.length() > MAX_TRANSPORT_LENGTH
|| !TRANSPORT_PATTERN.matcher(transport).matches()) {
throw new IllegalArgumentException("Invalid transport: " + transport);
}
}
/**
* Validate a Version content digest.View on GitHub (pinned to 9b989acdf1)
Solutions
- Review the input and runtime state for latest label, correct the reported problem, and retry.
When it happens
Trigger: Thrown at api/src/main/java/com/alibaba/nacos/api/ai/utils/AgentValidationUtils.java:175 when the library encounters an invalid state.
Common situations: Attempting to set or delete the reserved `latest` label, which is managed by the server.
AI-assisted analysis of alibaba/nacos@9b989acdf1 (2026-08-14).
Data as JSON: /api/errors/803af97092965851.
Report an issue: GitHub.