alibaba/spring-ai-alibaba · error · IllegalArgumentException

${type} requires 'name' field

Error message

${type} requires 'name' field

What it means

AbstractAgentTypeProvider.validateDSL() throws this IllegalArgumentException when the agent DSL configuration object exists but has no 'name' field. Every agent definition in the DSL must carry a name; it is used as the generated class/agent identity. This is a fail-fast schema validation before any code generation happens.

Source

Thrown at spring-ai-alibaba-admin/spring-ai-alibaba-admin-server-start/src/main/java/com/alibaba/cloud/ai/studio/admin/builder/generator/service/generator/agent/AbstractAgentTypeProvider.java:45

 * @author yHong
 * @version 1.0
 * @since 2025/9/8 18:31
 */
public abstract class AbstractAgentTypeProvider implements AgentTypeProvider {

	/**
	 * 提供默认的校验实现，子类可以重写以添加特定的校验逻辑
	 */
	@Override
	public void validateDSL(Map<String, Object> root) {
		// 基础校验：检查必需字段
		if (root == null) {
			throw new IllegalArgumentException(type() + " requires valid configuration");
		}

		String name = (String) root.get("name");
		if (isBlank(name)) {
			throw new IllegalArgumentException(type() + " requires 'name' field");
		}

		// 调用子类特定的校验逻辑
		validateSpecific(root);
	}

	/**
	 * 子类实现特定的校验逻辑
	 * @param root DSL 根对象
	 */
	protected abstract void validateSpecific(Map<String, Object> root);

	/**
	 * 校验 handle 是否存在
	 * @param root DSL 根对象
	 * @return handle Map
	 */
	@SuppressWarnings("unchecked")

View on GitHub (pinned to f82da0b50f)

Solutions

1. Add a non-blank "name" field to the agent configuration root object
2. Check the JSON/YAML source for the agent definition and ensure name is present and non-empty
3. If generating configs programmatically, validate that name is set before invoking the generator

Example fix

// before
{"type": "react_agent", "handle": {"model": "qwen-max"}}
// after
{"type": "react_agent", "name": "my-react-agent", "handle": {"model": "qwen-max"}}

if (config == null || isBlank((String) config.get("name"))) {
    throw new IllegalArgumentException("agent config requires a non-blank 'name' field");
}

static boolean hasName(Map<String,Object> cfg) {
    return cfg.get("name") instanceof String s && !s.isBlank();
}

try {
    generator.generate(description);
} catch (IllegalArgumentException e) {
    if (e.getMessage().contains("requires 'name' field")) {
        // surface a field-level error to the user pointing at the name key
    }
}

When it happens

Trigger: Calling the agent project generator (via validateDSL) with a config map like {"type":"react_agent", ...} that omits "name", or where "name" is an empty/whitespace string (isBlank check).

Common situations: Hand-written DSL JSON/YAML missing the name key; a UI builder exporting a partial draft; renaming a field to "agentName" or "title" in custom tooling; programmatic map construction that skips optional-looking fields.

Understand the failure class

Background: "must not be empty", "cannot be empty" — required-field validation errors across open-source libraries — this error's family across 41 libraries.

Related errors

• invalid agent dsl: missing 'agent' object or flat agent fiel
• invalid agent dsl: 'type/agent_class' and 'name' are require
• invalid dsl
• invalid dify dsl
• ${type} requires valid configuration

AI-assisted analysis of alibaba/spring-ai-alibaba@f82da0b50f (2026-09-09). Data as JSON: /api/errors/326cf7c170524421. Report an issue: GitHub.