jackwener/OpenCLI · error · ArgumentError

type must be one of: line, segment, ray

Error message

type must be one of: line, segment, ray

What it means

ArgumentError thrown by geogebra add-line when the --type value does not map to a supported GeoGebra command. Only line, segment, and ray are accepted; any other string yields no command and triggers this error.

Source

Thrown at clis/geogebra/add-line.js:29

  strategy: Strategy.PUBLIC,
  browser: true,
  navigateBefore: false,
  example: 'opencli geogebra add-line --points A,B --type segment',
  args: [
    { name: 'points', required: true, help: 'Two point labels separated by comma (e.g. "A,B")' },
    { name: 'type', required: false, choices: ['line', 'segment', 'ray'], default: 'line', help: 'Type: line, segment, or ray (default: line)' },
  ],
  columns: ['label', 'type', 'points'],
  func: async (page, kwargs) => {
    const [a, b] = normalizeLabelList(kwargs.points, 'points', 2, 2);
    const type = kwargs.type || 'line';
    const geogebraCmd = {
      line: `Line(${a},${b})`,
      segment: `Segment(${a},${b})`,
      ray: `Ray(${a},${b})`,
    }[type];
    if (!geogebraCmd) {
      throw new ArgumentError('type must be one of: line, segment, ray');
    }
    await ensureApplet(page);
    const result = requireGgbSuccess(await ggbEval(page, geogebraCmd), `Failed to create ${type}: ${geogebraCmd}`);
    return [{ label: result.label, type, points: `${a},${b}` }];
  },
});

View on GitHub (pinned to 49907e53dc)

Solutions

1. Use exactly one of: line, segment, ray (lowercase)
2. Correct the typo/casing in the script or command

Example fix

// before
opencli geogebra add-line --a A --b B --type Line
// after
opencli geogebra add-line --a A --b B --type line

const VALID = new Set(['line','segment','ray']);
const t = String(args.type ?? '').trim().toLowerCase();
if (!VALID.has(t)) {
  throw new Error(`type must be one of: line, segment, ray (got '${args.type}')`);
}

function isLineType(v: unknown): v is 'line' | 'segment' | 'ray' {
  return v === 'line' || v === 'segment' || v === 'ray';
}

When it happens

Trigger: Passing --type with a misspelled, capitalized, or unsupported value (e.g. 'Line', 'vector', 'lin') at clis/geogebra/add-line.js:29.

Common situations: Case-sensitivity mistakes; assuming other GeoGebra object types are supported; typos in scripts.

Understand the failure class

Background: Invalid enum value errors: "Unknown type", "Invalid scope", "must be one of" — when a string is not on the library's allowed list — this error's family across 23 libraries.

Related errors

• Use either --point or --radius, not both
• Provide --radius (number or point label) or --point (point o
• command must contain at least one GeoGebra command
• type must be a GeoGebra object type like point, line, or cir
• <train-no> "${trainNo}" does not look like a 12306 internal

AI-assisted analysis of jackwener/OpenCLI@49907e53dc (2026-08-29). Data as JSON: /api/errors/d025e6210b661265. Report an issue: GitHub.