# Reason

Source: https://www.nianticspatial.com/docs/api/swift/NSDK.VpsAnchorUpdate.AnchorTrackingState.enum-Reason/

Reason

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## Declaration

enum Reason

## Summary

Provides additional context about why an anchor is in either the `notTracked`
or `limited` tracking states.

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## Cases

| Name | Type | Summary |
| --- | --- | --- |
| case fatalNetworkError | fatalNetworkError | An unrecoverable network error has occured. Check the session's `featureStatus` formore information. |
| case initializing | initializing | The anchor is still being initialized. |
| case internalError | internalError | An unexpected internal error has occured. |
| case noVisualLocalization | noVisualLocalization | The device is not localized to the VPS location/map that this anchor belongs to, butcoarse localization has been achieved through some other method(s). |
| case permissionDenied | permissionDenied | The anchor is part of a private VPS location that this application does not haveauthorization to access. |
| case removed | removed | Tracking has been stopped for this anchor. |

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## Properties

| Name | Type | Summary |
| --- | --- | --- |
| var description | String | A textual representation of this instance.Calling this property directly is discouraged. Instead, convert aninstance of any type to a string by using the `String(describing:)`initializer. This initializer works with any type, and uses the custom`description` property for types that conform to`CustomStringConvertible`: struct Point: CustomStringConvertible { let x: Int, y: Int var description: String { return "((x), (y))" } } let p = Point(x: 21, y: 30) let s = String(describing: p) print(s) // Prints "(21, 30)"The conversion of `p` to a string in the assignment to `s` uses the`Point` type's `description` property. |
| var isError | Bool | - |

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## Operators

| Name | Type | Summary |
| --- | --- | --- |
| static func != | Bool | Returns a Boolean value indicating whether two values are not equal.Inequality is the inverse of equality. For any values `a` and `b`, `a != b`implies that `a == b` is `false`.This is the default implementation of the not-equal-to operator (`!=`)for any type that conforms to `Equatable`. |

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## Relationships

conforms to:  Swift.Hashable 

conforms to:  Swift.Equatable 

conforms to:  Swift.CustomStringConvertible