jackwener/OpenCLI · info · EmptyResultError

No extensions installed.

Error message

No extensions installed.

What it means

The `trae-solo extensions-list` command reads Trae SOLO's extensions.json (a VSCode-style extension registry file). This error is thrown as an EmptyResultError when the file exists and parses successfully but contains an empty array (or non-array content), meaning no VSCode extensions are registered in Trae SOLO. It signals a valid-but-empty state, not a failure to locate or parse the file.

Source

Thrown at clis/trae-solo/workspaces-fs.js:95

    browser: false,
    strategy: Strategy.LOCAL,
    args: [],
    columns: ['Index', 'Workspace Id', 'Kind', 'Target', 'Modified', 'Id', 'Version', 'Source', 'Installed'],
    func: async () => {
        if (!fs.existsSync(TRAE_EXTENSIONS_JSON)) {
            throw new CommandExecutionError(
                `extensions.json not found: ${TRAE_EXTENSIONS_JSON}`,
                'Trae SOLO has not installed any VSCode extensions yet.',
            );
        }
        let arr;
        try {
            arr = JSON.parse(fs.readFileSync(TRAE_EXTENSIONS_JSON, 'utf-8'));
        } catch (e) {
            throw new CommandExecutionError(`Failed to parse extensions.json: ${e.message}`, '');
        }
        if (!Array.isArray(arr) || !arr.length) {
            throw new EmptyResultError('trae-solo extensions-list', 'No extensions installed.');
        }
        return arr.map((e, i) => {
            const ts = e?.metadata?.installedTimestamp;
            const installed = ts ? new Date(ts).toISOString().replace('T', ' ').slice(0, 19) : '';
            return {
                Index: i + 1,
                'Workspace Id': '',
                Kind: '',
                Target: '',
                Modified: '',
                Id: e?.identifier?.id || '?',
                Version: e?.version || '',
                Source: e?.metadata?.source || '',
                Installed: installed,
            };
        });
    },
});

View on GitHub (pinned to 49907e53dc)

Solutions

1. Install at least one extension in Trae SOLO (open the IDE, use the extensions marketplace), then rerun `trae-solo extensions-list`.
2. Confirm TRAE_EXTENSIONS_JSON points at the Trae SOLO profile you actually use; if you use regular TRAE, the SOLO extensions.json will remain empty.
3. Inspect the file directly (`cat ~/.trae/extensions/extensions.json`); if the top level is not an array, the file is malformed and should be regenerated by Trae.
4. If you only need to check the file location/health, note that a missing file raises CommandExecutionError instead — treat EmptyResultError as 'file OK, zero extensions'.

Example fix

// before: assuming the file always has rows
const rows = await runCli('trae-solo extensions-list');
// after: handle the empty case explicitly
let rows;
try {
  rows = await runCli('trae-solo extensions-list');
} catch (e) {
  if (e.name === 'EmptyResultError') rows = [];
  else throw e;
}

const fs = require('fs');
const p = require('os').homedir() + '/.trae/extensions/extensions.json';
let count = 0;
try {
  const parsed = JSON.parse(fs.readFileSync(p, 'utf-8'));
  count = Array.isArray(parsed) ? parsed.length : 0;
} catch { /* missing or unparseable */ }
if (count === 0) console.log('No Trae SOLO extensions installed; skipping extensions-list.');

function hasExtensions(value) {
  return Array.isArray(value) && value.length > 0;
}

try {
  const rows = await runCli('trae-solo extensions-list');
} catch (e) {
  if (e.name === 'EmptyResultError') {
    return []; // zero extensions is a valid state
  }
  throw e;
}

When it happens

Trigger: Running `trae-solo extensions-list` when ~/.trae/extensions/extensions.json parses to an empty array `[]` (or to a non-array value) — i.e. Trae SOLO is installed but no extensions have ever been installed into it.

Common situations: A fresh Trae SOLO install with zero extensions; the user recently cleared the extensions directory; extensions were installed into a different Trae edition (TRAE vs TRAE SOLO) so SOLO's extensions.json stays empty; a corrupted extensions.json whose top level is not an array.

Understand the failure class

Background: EmptyResultError / "no results found": when an API or scraper succeeds but returns zero rows — this error's family across 9 libraries.

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AI-assisted analysis of jackwener/OpenCLI@49907e53dc (2026-08-29). Data as JSON: /api/errors/51db7ce6955bb1bc. Report an issue: GitHub.