generated: '2026-07-20' method: searched source: https://docs.joinplayroom.com/errors format: sdk-error-reference envelope: note: >- Playroom Kit surfaces client/API errors as thrown JavaScript errors from SDK calls (chiefly insertCoin). Errors are documented as named reference pages rather than an RFC 9457 problem+json envelope. errors: - code: no-game-id title: No gameId provided in the insertCoin function url: https://docs.joinplayroom.com/errors/no-game-id source_operation: insertCoin cause: >- insertCoin() was called without the required gameId parameter, so the SDK cannot connect to Playroom's multiplayer infrastructure. remediation: >- Create a project in the Dev Portal (https://dev.joinplayroom.com), copy the read-only gameId from Configuration > General, and pass it: insertCoin({ gameId: "your_game_id_here" }).