Add Embedded Framework Unity3d

public static void OnPostprocessBuild(BuildTarget target, string projectPath) {

    string pbxProjPath = PBXProject.GetPBXProjectPath(projectPath);
    PBXProject pbxProject = new PBXProject();
    pbxProject.ReadFromFile(pbxProjPath);

    string targetName = PBXProject.GetUnityTargetName();
    string targetGuidName = pbxProject.TargetGuidByName(targetName);
    pbxProject.WriteToFile(pbxProjPath);

    string basePath = Application.dataPath + "/";
    string frameworkPath = "Plugins/iOS/";
    string []arrFrameworks = {"frameworkA.framework", "frameworkB.framework"};
    foreach(string framework in arrFrameworks) {
        AddEmbeddedFramework(ref pbxProject, targetGuidName, basePath + frameworkPath + framework, frameworkPath + framework);
    }

    pbxProject.WriteToFile (pbxProjPath);
    foreach(string framework in arrFrameworks) {
        string contents = File.ReadAllText(pbxProjPath);
        string pattern = "(?<=Embed Frameworks)(?:.*)(\\/\\* " + framework + "\\ \\*\\/)(?=; };)";
        string oldText = "/* " + framework + " */";
        string updatedText = "/* " + framework + " */; settings = {ATTRIBUTES = (CodeSignOnCopy, ); }";
        contents = Regex.Replace(contents, pattern, m => m.Value.Replace(oldText, updatedText));
        File.WriteAllText(pbxProjPath, contents);
    }
}

public static void AddEmbeddedFramework(ref PBXProject project, string target, string frameworkPath, string frameworkName) {
    string fileGuid = project.AddFile(frameworkPath, "Frameworks/" + frameworkName, PBXSourceTree.Source);
    string embedPhase = project.AddCopyFilesBuildPhase (target, "Embed Frameworks", "", "10");
    project.AddFileToBuildSection (target, embedPhase, fileGuid);
    PBXProjectExtensions.AddFileToEmbedFrameworks(project, target, fileGuid);
    project.AddBuildProperty(target, "LD_RUNPATH_SEARCH_PATHS", "$(inherited) @executable_path/Frameworks");
    project.AddBuildProperty(target, "FRAMEWORK_SEARCH_PATHS", "$(SRCROOT)/PATH_TO_FRAMEWORK/");
}