# AddFrameworkToProject(string, string, bool)

> Adds a system framework dependency for the specified target.

## Definition

* **Type:** Method
* **Namespace:** [UnityEditor.iOS.Xcode](/engine/6000.5/script-reference/unityeditor/ios/xcode.md)
* **Assembly:** UnityEditor.iOS.Extensions.Xcode

```csharp
public void AddFrameworkToProject(string targetGuid, string framework, bool weak)
```

### Parameters

**** (\[string]\(https\://learn.microsoft.com/dotnet/api/system.string)): The GUID of the build configuration as returned by [PBXProject.TargetGuidByName](/engine/6000.5/script-reference/unityeditor/ios/xcode/pbxproject/targetguidbyname.md).**** (\[string]\(https\://learn.microsoft.com/dotnet/api/system.string)): The name of the framework. The extension of the filename must be `.framework`.**** (\[bool]\(https\://learn.microsoft.com/dotnet/api/system.boolean)): True if the framework is optional, for example if it's weakly linked, and false if the framework is required.

### Remarks

The function assumes system frameworks are located in the `System/Library/Frameworks`folder in the SDK source tree. The framework is added to Frameworks logical folder in the project.

### Examples

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

public class Sample_AddFrameworkToProject
{

    [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 GUIDs for UnityFramework and Main targets
        string unityFrameworkTargetGuid = pbxProject.GetUnityFrameworkTargetGuid();
        string mainTargetGuid = pbxProject.GetUnityMainTargetGuid();

        // Add a required framework to UnityFramework target 
        pbxProject.AddFrameworkToProject(unityFrameworkTargetGuid, "CoreBluetooth.framework", false);

        // Add an optional framework to main target
        pbxProject.AddFrameworkToProject(mainTargetGuid, "MapKit.framework", true);

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