An element with the same key already exists in the Dictionary<TKey, TValue> about xcodeeditor-for-unity HOT 5 OPEN

IOException: Sharing violation on path /Users/frarees/Desktop/sandbox/Unity-iPhone.xcodeproj/project.pbxproj
System.IO.FileStream..ctor (System.String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize, Boolean anonymous, FileOptions options) (at /Applications/buildAgent/work/3df08680c6f85295/mcs/class/corlib/System.IO/FileStream.cs:320)
System.IO.FileStream..ctor (System.String path, FileMode mode, FileAccess access, FileShare share)
(wrapper remoting-invoke-with-check) System.IO.FileStream:.ctor (string,System.IO.FileMode,System.IO.FileAccess,System.IO.FileShare)
System.IO.StreamWriter..ctor (System.String path, Boolean append, System.Text.Encoding encoding, Int32 bufferSize) (at /Applications/buildAgent/work/3df08680c6f85295/mcs/class/corlib/System.IO/StreamWriter.cs:124)
System.IO.StreamWriter..ctor (System.String path, Boolean append)
(wrapper remoting-invoke-with-check) System.IO.StreamWriter:.ctor (string,bool)
System.IO.File.CreateText (System.String path) (at /Applications/buildAgent/work/3df08680c6f85295/mcs/class/corlib/System.IO/File.cs:159)
UnityEditor.XCodeEditor.XCProject.Save () (at Assets/Editor/XCodeEditor/XCProject.cs:958)
XCodePostProcess.OnPostProcessBuild (BuildTarget target, System.String path) (at Assets/Editor/XCodePostProcess.cs:21)
UnityEditor.HostView:OnGUI()

using UnityEditor;
using UnityEditor.Callbacks;
using UnityEngine;

public static class XCodePostProcess
{
    [PostProcessBuild]
    public static void OnPostProcessBuild( BuildTarget target, string path )
    {
        if (target == BuildTarget.iPhone) {
            // Create a new project object from build target
            UnityEditor.XCodeEditor.XCProject project = new UnityEditor.XCodeEditor.XCProject( path );

            // Find and run through all projmods files to patch the project
            var files = System.IO.Directory.GetFiles( Application.dataPath, "*.projmods", System.IO.SearchOption.AllDirectories );

            foreach( var file in files )
                project.ApplyMod( file );

            // Save
            project.Save();
        }
    }
}