alibaba/nacos · error · IllegalArgumentException

Invalid transport: {transport}

Error message

Invalid transport: {transport}

What it means

Error "Invalid transport: {transport}" thrown in alibaba/nacos.

Source

Thrown at api/src/main/java/com/alibaba/nacos/api/ai/utils/AgentValidationUtils.java:188

     * @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.
     *
     * @param contentDigest content digest
     * @throws IllegalArgumentException when invalid
     */
    public static void validateContentDigest(String contentDigest) {
        if (contentDigest == null || !CONTENT_DIGEST_PATTERN.matcher(contentDigest).matches()) {
            throw new IllegalArgumentException("Invalid contentDigest: " + contentDigest);
        }
    }
    
    /**
     * Validate a descriptor media type.
     *

View on GitHub (pinned to 9b989acdf1)

Solutions

1. Correct the invalid value for transport validation to match the expected format or allowed set, then retry.

When it happens

Trigger: Thrown at api/src/main/java/com/alibaba/nacos/api/ai/utils/AgentValidationUtils.java:188 when the library encounters an invalid state.

Common situations: Validating an endpoint with a transport value that fails the allowed pattern.

AI-assisted analysis of alibaba/nacos@9b989acdf1 (2026-08-14). Data as JSON: /api/errors/3d9513796fcbdd26. Report an issue: GitHub.