can1357/oh-my-pi · error

Trusted extension failed to load: ${trustedExtensions.errors

Error message

Trusted extension failed to load: ${trustedExtensions.errors.map(item => item.error).join("; ")}

What it means

In the ACP session factory, after trusted extensions are loaded, any per-extension load error collected by loadTrustedSessionExtensions is aggregated and thrown as a single fatal error, joining all individual error messages with '; '. The ACP path treats trusted extensions as required, so partial load failure aborts session creation.

Source

Thrown at packages/coding-agent/src/main.ts:432

export function createAcpSessionFactory(args: AcpSessionFactoryOptions): AcpSessionFactory {
	return async (cwd, factoryOptions) => {
		const nextSettings = await args.settings.cloneForCwd(cwd);
		const nextSessionManager = SessionManager.create(cwd, args.sessionDir);
		const agentId = `acp:${nextSessionManager.getSessionId()}`;
		// `baseOptions.titleSystemPrompt` is resolved from the launch cwd; an ACP
		// host can open `session/new` for any client-supplied workspace, so
		// re-discover `TITLE_SYSTEM.md` against THIS session's `cwd` to keep the
		// replan-driven title refresh consistent with the target project's
		// policy (PR #3736 follow-up).
		const titleSystemPromptSource = discoverTitleSystemPromptFile(cwd);
		const titleSystemPrompt = await resolvePromptInput(titleSystemPromptSource, "title system prompt");
		const eventBus = new EventBus();
		const trustedExtensions =
			args.parsedArgs.trustedExtensions && args.parsedArgs.trustedExtensions.length > 0
				? await loadTrustedSessionExtensions(args.baseOptions, cwd, eventBus)
				: undefined;
		if (trustedExtensions && trustedExtensions.errors.length > 0) {
			throw new Error(
				`Trusted extension failed to load: ${trustedExtensions.errors.map(item => item.error).join("; ")}`,
			);
		}
		const { session: nextSession, setToolUIContext } = await args.createSession({
			...args.baseOptions,
			cwd,
			sessionManager: nextSessionManager,
			settings: nextSettings,
			authStorage: args.authStorage,
			modelRegistry: args.modelRegistry,
			agentId,
			// ACP defers the `ask` capability and reserve-policy confirmation until
			// client capabilities are known, without enabling other UI-only behavior.
			interactivePrompts: factoryOptions?.interactivePrompts,
			deferUsageReserveConfirmation: true,
			enableMCP: false,
			titleSystemPrompt,
			eventBus,

View on GitHub (pinned to 9690622007)

Solutions

1. Read the joined messages to find each failing extension and its root cause.
2. Fix or remove the failing extension path from --trusted-extension arguments.
3. Run the extension module directly (bun run path/to/ext.ts) to reproduce its load error in isolation.
4. Reinstall missing dependencies the extension imports.

Example fix

// before
omp --trusted-extension ./broken-ext.ts
// error: Trusted extension failed to load: Cannot find module 'missing-dep'
// after
bun add missing-dep   # or fix/remove the extension path
omp --trusted-extension ./broken-ext.ts

for (const p of trustedExtensionPaths) {
  try { await import(p); } catch (e) { console.error(`Extension ${p} fails to load: ${e.message}`); }
}

try {
  await startAcpSession(args);
} catch (err) {
  if (err.message.startsWith("Trusted extension failed to load:")) {
    for (const msg of err.message.slice("Trusted extension failed to load: ".length).split("; ")) console.error(msg);
  }
  throw err;
}

When it happens

Trigger: createAcpSessionFactory invoked with args.parsedArgs.trustedExtensions non-empty, and loadTrustedSessionExtensions returns { errors: [...] } (syntax error in an extension module, missing dependency, top-level throw, import of a nonexistent file).

Common situations: Extension module has a TypeScript/import error or references an uninstalled dependency; extension file was moved/renamed after being configured; extension throws during initialization; Node/Bun version incompatibility in extension code.

Related errors

• Trusted extension must be a module file, not a directory: ${
• Trusted extension failed to load: ${extensionsResult.errors.
• --list-details, --exec, and --exec-batch are not supported b
• positional paths cannot be combined with --search-path
• unknown file type: {value}

AI-assisted analysis of can1357/oh-my-pi@9690622007 (2026-08-31). Data as JSON: /api/errors/e6159f148c8bb397. Report an issue: GitHub.