stanfordnlp/CoreNLP · error · RuntimeIOException

No such trained tagger config file found: " + name

Error message

No such trained tagger config file found: " + name

What it means

RuntimeIOException from TaggerConfig when, in tagging/test mode, the specified model (or dump) file's serialized default properties cannot be read — the trained tagger file is missing, unreadable, or not a valid tagger model.

Solutions

1. Verify the -model path points to an existing trained tagger file
2. Retrain or re-download the model if it is missing/corrupt
3. Check classpath/URL accessibility for the model path

When it happens

Trigger: Thrown at src/edu/stanford/nlp/tagger/maxent/TaggerConfig.java:155 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of stanfordnlp/CoreNLP@1b7edd19c4 (2026-09-10). Data as JSON: /api/errors/e7f01c4446c99ae7. Report an issue: GitHub.

Appendix: source

Thrown at src/edu/stanford/nlp/tagger/maxent/TaggerConfig.java:155

  public TaggerConfig(Properties props) {
    // load up the default properties
    this();

    /* Try and use the default properties from the model */
    // Properties modelProps = new Properties();
    // TaggerConfig oldConfig = new TaggerConfig(); // loads default values in oldConfig
    if (! props.containsKey("trainFile")) {
      String name = props.getProperty("model");
      if (name == null) {
        name = props.getProperty("dump");
      }
      if (name != null) {
        try (DataInputStream in = new DataInputStream(IOUtils.getInputStreamFromURLOrClasspathOrFileSystem(name))) {
          log.info("Loading default properties from tagger " + name);
          this.putAll(TaggerConfig.readConfig(in)); // overwrites defaults with any serialized values.
        } catch (Exception e) {
          throw new RuntimeIOException("No such trained tagger config file found: " + name);
        }
      }
    }

    setProperties(props);
  }

  public void setProperties(Properties props) {
    if (props.getProperty("") != null) {
      throw new RuntimeException("unknown argument(s): \"" + props.getProperty("") + '\"');
    }

    if (props.getProperty("genprops") != null) {
      printGenProps(System.out);
      System.exit(0);
    }

    if (props.containsKey("mode") && props.containsKey("file")) {

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