# ErrorCode

> Package operation Error.

## Definition

* **Type:** Enum
* **Namespace:** [UnityEditor.PackageManager](/engine/6000.0/script-reference/unityeditor/packagemanager.md)
* **Assembly:** UnityEditor

```csharp
public enum ErrorCode
```

## Fields

| Value                                                                                                        | Description                                                |
| ------------------------------------------------------------------------------------------------------------ | ---------------------------------------------------------- |
| [AggregateError](/engine/6000.0/script-reference/unityeditor/packagemanager/errorcode/aggregateerror.md)     | One ore more errors occurred during the operation.         |
| [Conflict](/engine/6000.0/script-reference/unityeditor/packagemanager/errorcode/conflict.md)                 | Conflicting package versions were found.                   |
| [Forbidden](/engine/6000.0/script-reference/unityeditor/packagemanager/errorcode/forbidden.md)               | Operation was not allowed.                                 |
| [InvalidParameter](/engine/6000.0/script-reference/unityeditor/packagemanager/errorcode/invalidparameter.md) | Operation had invalid parameters.                          |
| [NotFound](/engine/6000.0/script-reference/unityeditor/packagemanager/errorcode/notfound.md)                 | A package required to fulfill the operation was not found. |
| [Unknown](/engine/6000.0/script-reference/unityeditor/packagemanager/errorcode/unknown.md)                   | Operation resulted in an unknown error.                    |