jackwener/OpenCLI · error · CommandExecutionError

pickerResult?.reason || 'Failed to open model picker for mod

Error message

pickerResult?.reason || 'Failed to open model picker for model selection'

What it means

CommandExecutionError thrown when the in-page script that opens Gemini's model picker menu reports failure (or returns no result) after unwrapGeminiEvaluateResult. The library cannot proceed to select a thinking model unless the picker menu opens.

Source

Thrown at clis/gemini/utils.js:2727

 * pattern with an explicit page.wait between them.
 */
export function selectGeminiModelScript(modelId) {
    return selectModelInMenuScript(modelId);
}

/**
 * Select a Gemini model by canonical id (e.g. "2.5-flash") in the
 * web UI model picker.  Opens the picker, waits for React, then clicks
 * the matching entry.  Throws CommandExecutionError on failure.
 */
export async function selectGeminiModel(page, modelId) {
    await ensureGeminiPage(page);

    // Open the picker menu.
    const pickerRaw = await page.evaluate(openModelPickerForThinkingScript());
    const pickerResult = unwrapGeminiEvaluateResult(pickerRaw, 'Gemini model picker');
    if (!pickerResult || !pickerResult.ok) {
        throw new CommandExecutionError(
            pickerResult?.reason || 'Failed to open model picker for model selection'
        );
    }

    // Wait for React to render the menu.
    await page.wait(0.8);

    // Find and click the matching menu item.
    const raw = await page.evaluate(selectModelInMenuScript(modelId));
    const result = unwrapGeminiEvaluateResult(raw, 'Gemini model selection');
    if (!result || !result.ok) {
        throw new CommandExecutionError(
            result?.reason || 'Failed to select Gemini model "' + modelId + '"'
        );
    }

    await page.wait(0.5);
    const selectedModelId = await getCurrentGeminiModel(page);

View on GitHub (pinned to 49907e53dc)

Solutions

1. Re-run the command (transient UI timing)
2. Ensure the Gemini page is fully loaded and logged in before running
3. Update the CLI to match the current Gemini DOM structure

await page.wait(1.0); // let the app fully hydrate before model operations
const ready = await page.evaluate(() => !!document.body && document.body.innerText.length > 0);
if (!ready) throw new Error('Gemini page not ready for model picker interaction');

try {
  await selectGeminiModel(page, modelId);
} catch (err) {
  if (err.message.includes('model picker')) {
    await page.reload();
    await page.wait(2);
    await selectGeminiModel(page, modelId); // one retry
  } else throw err;
}

When it happens

Trigger: Calling the model-selection flow at clis/gemini/utils.js:2727 where openModelPickerForThinkingScript() returns ok:false or a reason, typically because the picker trigger button was not found or not clickable.

Common situations: Gemini UI update renaming/changing the picker button; page not logged in or showing an interstitial; slow React hydration; running while another menu is open.

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AI-assisted analysis of jackwener/OpenCLI@49907e53dc (2026-08-29). Data as JSON: /api/errors/25a0cd223e087c33. Report an issue: GitHub.