n8n-io/n8n · error

mkdir exited with code

Error message

mkdir exited with code ${result.exitCode}

What it means

In createWorkspaceDirectory, after filesystem.mkdir failed, the `mkdir -p` command fallback in the sandbox succeeded process-wise but returned a non-zero exit code with empty stderr — the exit code is reported as the only diagnostic.

Solutions

1. Re-run the operation to see if the failure is transient
2. Check the path for invalid characters or sandbox permission problems

When it happens

Trigger: Thrown at packages/@n8n/instance-ai/src/workspace/sandbox-setup.ts:355 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of n8n-io/n8n@5ac6606e81 (2026-08-12). Data as JSON: /api/errors/8fe8ee6dc9a1d2ee. Report an issue: GitHub.

Appendix: source

Thrown at packages/@n8n/instance-ai/src/workspace/sandbox-setup.ts:355

		await writeFileViaSandbox(workspace, joinWorkspacePath(root, path), content);
	}
}

type WorkspaceFilesystem = NonNullable<SandboxWorkspace['filesystem']>;

async function createWorkspaceDirectory(
	workspace: SandboxWorkspace,
	filesystem: WorkspaceFilesystem,
	path: string,
): Promise<void> {
	try {
		await filesystem.mkdir(path, { recursive: true });
	} catch (error) {
		try {
			const result = await runInSandbox(workspace, `mkdir -p '${escapeSingleQuotes(path)}'`);
			if (result.exitCode === 0) return;

			throw new Error(result.stderr || `mkdir exited with code ${result.exitCode}`);
		} catch (fallbackError) {
			throw new Error(
				`Failed to create sandbox workspace directory "${path}": ${getErrorMessage(error)}; command fallback failed: ${getErrorMessage(fallbackError)}`,
			);
		}
	}
}

async function writeWorkspaceFile(
	workspace: SandboxWorkspace,
	filesystem: WorkspaceFilesystem,
	path: string,
	content: string | Buffer,
): Promise<void> {
	try {
		await filesystem.writeFile(path, content, { recursive: true });
	} catch (error) {
		try {

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