# AddCopyFilesBuildPhase(string, string, string, string)

> Creates a new Copy Files build phase for a given target.

## Definition

* **Type:** Method
* **Namespace:** [UnityEditor.iOS.Xcode](/engine/6000.3/script-reference/unityeditor/ios/xcode.md)
* **Assembly:** UnityEditor.iOS.Extensions.Xcode

```csharp
public string AddCopyFilesBuildPhase(string targetGuid, string name, string dstPath, string subfolderSpec)
```

### Parameters

**** (\[string]\(https\://learn.microsoft.com/dotnet/api/system.string)): The GUID of the target, such as the one returned by [PBXProject.GetUnityFrameworkTargetGuid](/engine/6000.3/script-reference/unityeditor/ios/xcode/pbxproject/getunityframeworktargetguid.md).**** (\[string]\(https\://learn.microsoft.com/dotnet/api/system.string)): The name of the phase.**** (\[string]\(https\://learn.microsoft.com/dotnet/api/system.string)): The destination path.**** (\[string]\(https\://learn.microsoft.com/dotnet/api/system.string)): The subfolder spec. The following usages are known:- `10` for embedding frameworks.
- `13` for embedding app extension content.
- `16` for embedding watch content.

### Returns

| Type                                                           | Description                        |
| -------------------------------------------------------------- | ---------------------------------- |
| [string](https://learn.microsoft.com/dotnet/api/system.string) | Returns the GUID of the new phase. |

### Remarks

If a **Copy Files** build phase with the same name, `dstPath`, and `subfolderSpec` is already configured for the target, the function returns the existing phase. The new phase is placed at the end of the list of build phases configured for the target.

### Examples

```csharp
using UnityEngine;
using UnityEditor;
using UnityEditor.iOS.Xcode;
using UnityEditor.Callbacks;
using System.IO;

public class Sample_AddCopyFilesBuildPhase  
{
    [PostProcessBuild]
    public static void OnPostprocessBuild(BuildTarget buildTarget, string pathToBuiltProject)
    {

        // Stop processing if build target is not iOS
        if (buildTarget != BuildTarget.iOS)
            return;

        // Initialize PBXProject
        string projectPath = PBXProject.GetPBXProjectPath(pathToBuiltProject);
        PBXProject pbxProject = new PBXProject();
        pbxProject.ReadFromFile(projectPath);

        // Get main target GUID
        string mainTargetGuid = pbxProject.GetUnityMainTargetGuid();

        // Add a Copy Files Build Phase to the main target
        pbxProject.AddCopyFilesBuildPhase(mainTargetGuid, "ExamplePhase", "path/to/file", "10");

        // Apply changes to the pbxproj file
        pbxProject.WriteToFile(projectPath);
    }
}
```