# DecisionMakerError

    enum DecisionMakerError: Error, Equatable, Sendable, LocalizedError, CustomNSError

Errors thrown by the MediaPipe Decision Swift SDK.
- `
  ### [closed](https://developers.google.com/edge/api/mediapipe/swift/decision/Enums/DecisionMakerError.md.txt#/s:22MediaPipeTasksDecision0D10MakerErrorO6closedyA2CmF)

  ` The Decision instance has already been closed.

  #### Declaration

  Swift

      case closed

- `
  ### [failedToEvaluate(_:)](https://developers.google.com/edge/api/mediapipe/swift/decision/Enums/DecisionMakerError.md.txt#/s:22MediaPipeTasksDecision0D10MakerErrorO16failedToEvaluateyACSSSgcACmF)

  ` A synchronous or asynchronous evaluation call failed.

  #### Declaration

  Swift

      case failedToEvaluate(String?)

- `
  ### [failedToInitializeEngine(_:)](https://developers.google.com/edge/api/mediapipe/swift/decision/Enums/DecisionMakerError.md.txt#/s:22MediaPipeTasksDecision0D10MakerErrorO24failedToInitializeEngineyACSSSgcACmF)

  ` The Decision engine failed to initialize from the provided model.

  #### Declaration

  Swift

      case failedToInitializeEngine(String?)

- `
  ### [invalidArgument(_:)](https://developers.google.com/edge/api/mediapipe/swift/decision/Enums/DecisionMakerError.md.txt#/s:22MediaPipeTasksDecision0D10MakerErrorO15invalidArgumentyACSScACmF)

  ` The supplied options or question parameters are invalid.

  #### Declaration

  Swift

      case invalidArgument(String)

- `
  ### [errorDomain](https://developers.google.com/edge/api/mediapipe/swift/decision/Enums/DecisionMakerError.md.txt#/s:22MediaPipeTasksDecision0D10MakerErrorO11errorDomainSSvpZ)

  ` The domain of the error.

  #### Declaration

  Swift

      static var errorDomain: String { get }

- `
  ### [errorCode](https://developers.google.com/edge/api/mediapipe/swift/decision/Enums/DecisionMakerError.md.txt#/s:22MediaPipeTasksDecision0D10MakerErrorO9errorCodeSivp)

  ` The error code within the given domain.

  #### Declaration

  Swift

      var errorCode: Int { get }

- `
  ### [errorDescription](https://developers.google.com/edge/api/mediapipe/swift/decision/Enums/DecisionMakerError.md.txt#/s:22MediaPipeTasksDecision0D10MakerErrorO16errorDescriptionSSSgvp)

  ` A localized message describing what error occurred.

  #### Declaration

  Swift

      var errorDescription: String? { get }