alibaba/nacos · error · IllegalArgumentException

Plugin config source is not updatable: {sourceType}

Error message

Plugin config source is not updatable: {sourceType}

What it means

Error "Plugin config source is not updatable: {sourceType}" thrown in alibaba/nacos.

Source

Thrown at core/src/main/java/com/alibaba/nacos/core/plugin/config/PluginConfigResolver.java:122

     *
     * @param pluginInfo plugin info
     */
    public void refreshStaticConfig(PluginInfo pluginInfo) {
        sourceRegistry.refreshConfig(PluginConfigSourceType.STATIC, pluginInfo);
    }
    
    /**
     * Replace config in an updatable source.
     *
     * @param sourceType source type
     * @param pluginId plugin id
     * @param config normalized full source config
     */
    public void updateConfig(PluginConfigSourceType sourceType, String pluginId,
        Map<String, String> config) {
        PluginConfigSourceResolver sourceResolver = sourceRegistry.getSourceResolver(sourceType);
        if (!sourceResolver.isUpdatable()) {
            throw new IllegalArgumentException("Plugin config source is not updatable: "
                + sourceType);
        }
        sourceResolver.updateConfig(pluginId, config);
    }
    
    /**
     * Get the current config snapshot of a source.
     *
     * @param sourceType source type
     * @param pluginInfo plugin info
     * @return source config, or {@code null} if no map-based snapshot exists
     */
    public Map<String, String> getConfig(PluginConfigSourceType sourceType,
        PluginInfo pluginInfo) {
        return sourceRegistry.getSourceResolver(sourceType).getConfig(pluginInfo);
    }
    
    /**

View on GitHub (pinned to 9b989acdf1)

Solutions

1. Review the input and runtime state for plugin config source not updatable, correct the reported problem, and retry.

When it happens

Trigger: Thrown at core/src/main/java/com/alibaba/nacos/core/plugin/config/PluginConfigResolver.java:122 when the library encounters an invalid state.

Common situations: Updating a plugin config source that does not support updates.

AI-assisted analysis of alibaba/nacos@9b989acdf1 (2026-08-14). Data as JSON: /api/errors/1b901394c1bd2405. Report an issue: GitHub.