paperclipai/paperclip · error

Missing value for ${arg}

Error message

Missing value for ${arg}

What it means

Error "Missing value for ${arg}" thrown in paperclipai/paperclip.

Source

Thrown at packages/google-sheets-mcp-server/src/config.ts:46

  serviceAccountJson?: string | null;
  serviceAccountJsonPath?: string | null;
  allowedSpreadsheetIds?: string | string[] | null;
}

export interface GoogleSheetsMcpHttpConfigInput extends GoogleSheetsMcpConfigInput {
  port?: string | number | null;
  host?: string | null;
  token?: string | null;
}

function parseArgs(argv: string[]): GoogleSheetsMcpConfigInput {
  const input: GoogleSheetsMcpConfigInput = {};
  for (let index = 0; index < argv.length; index += 1) {
    const arg = argv[index];
    const readValue = () => {
      const next = argv[index + 1];
      if (!next || next.startsWith("--")) {
        throw new Error(`Missing value for ${arg}`);
      }
      index += 1;
      return next;
    };
    if (arg === "--service-account-json") input.serviceAccountJson = readValue();
    if (arg === "--service-account-json-path") input.serviceAccountJsonPath = readValue();
    if (arg === "--allowed-spreadsheet-ids") input.allowedSpreadsheetIds = readValue();
  }
  return input;
}

function parseAllowedSpreadsheetIds(raw: string | string[] | null | undefined): string[] {
  const values = Array.isArray(raw) ? raw : String(raw ?? "").split(/[\n,]/g);
  const ids = values.map((value) => value.trim()).filter(Boolean);
  return Array.from(new Set(ids));
}

function parsePort(raw: string | number | null | undefined): number {

View on GitHub (pinned to 120ae5428f)

Solutions

1. Pass a value after the named CLI argument, e.g. `--port 3000` instead of a bare `--port`.

When it happens

Trigger: Thrown at packages/google-sheets-mcp-server/src/config.ts:46 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of paperclipai/paperclip@120ae5428f (2026-08-18). Data as JSON: /api/errors/1f4b44674afe3ed4. Report an issue: GitHub.