diff --git a/README.md b/README.md
index e80bd50..da3a7d8 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,7 @@
 ### Installation with CocoaPods
 
 ```ruby
-pod 'VideoEditor', '1.0'
+pod 'VideoEditor', '1.1'
 ```
 
 ### Build Project
diff --git a/VideoEditor.podspec b/VideoEditor.podspec
index c7a6828..b1300bb 100644
--- a/VideoEditor.podspec
+++ b/VideoEditor.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name = 'VideoEditor'
-  s.version = '1.0'
+  s.version = '1.1'
   s.summary = 'VideoEditor facilitates manipulate Audios volume, merge multiple audios to video'
   s.description = <<-DESC
   VideoEditor written on Swift 5.0 by levantAJ
diff --git a/VideoEditor/VideoEditor.swift b/VideoEditor/VideoEditor.swift
index f9b4cb5..bc6b805 100644
--- a/VideoEditor/VideoEditor.swift
+++ b/VideoEditor/VideoEditor.swift
@@ -189,8 +189,10 @@ public extension VideoEditor {
 
 public enum VideoEditorError: Int, Error {
     case notFoundAudioInVideo = 10000
+}
 
-    var localizedDescription: String {
+extension VideoEditorError: LocalizedError {
+    public var errorDescription: String? {
         switch self {
         case .notFoundAudioInVideo:
             return NSLocalizedString("Cannot found audio in video!", comment: "")
diff --git a/VideoEditor/VideoExporter.swift b/VideoEditor/VideoExporter.swift
deleted file mode 100644
index 8a9bc98..0000000
--- a/VideoEditor/VideoExporter.swift
+++ /dev/null
@@ -1,10 +0,0 @@
-//
-//  VideoExporter.swift
-//  VideoEditor
-//
-//  Created by Tai Le on 10/17/20.
-//
-
-open class VideoExporter {
-    static let shared = VideoExporter()
-}