diff --git a/V2rayU.xcodeproj/project.pbxproj b/V2rayU.xcodeproj/project.pbxproj
index 2bb2100..7e25976 100755
--- a/V2rayU.xcodeproj/project.pbxproj
+++ b/V2rayU.xcodeproj/project.pbxproj
@@ -431,7 +431,7 @@
 			};
 			buildConfigurationList = 664EB36C216C9A5E00B6AE0D /* Build configuration list for PBXProject "V2rayU" */;
 			compatibilityVersion = "Xcode 9.3";
-			developmentRegion = en;
+			developmentRegion = "zh-Hans";
 			hasScannedForEncodings = 0;
 			knownRegions = (
 				en,
diff --git a/V2rayU/Base.lproj/ConfigWindow.xib b/V2rayU/Base.lproj/ConfigWindow.xib
index a22aed4..127ea08 100644
--- a/V2rayU/Base.lproj/ConfigWindow.xib
+++ b/V2rayU/Base.lproj/ConfigWindow.xib
@@ -1855,7 +1855,7 @@ Gw
                                             <autoresizingMask key="autoresizingMask"/>
                                             <clipView key="contentView" id="0rS-HW-TeI">
                                                 <rect key="frame" x="1" y="1" width="375" height="480"/>
-                                                <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                                                <autoresizingMask key="autoresizingMask"/>
                                                 <subviews>
                                                     <textView importsGraphics="NO" richText="NO" verticallyResizable="YES" selectionGranularity="word" allowsUndo="YES" allowsNonContiguousLayout="YES" textCompletion="NO" smartInsertDelete="YES" id="dNK-7u-GUm">
                                                         <rect key="frame" x="0.0" y="0.0" width="379" height="480"/>
diff --git a/V2rayU/V2rayLaunch.swift b/V2rayU/V2rayLaunch.swift
index 434b511..dab6418 100644
--- a/V2rayU/V2rayLaunch.swift
+++ b/V2rayU/V2rayLaunch.swift
@@ -36,8 +36,12 @@ func executeAppleScriptWithOsascript(script: String) {
         print("executeAppleScript-Output: \(output)")
     } catch {
         print("executeAppleScript-Error: \(error)")
-        let title = NSLocalizedString("InstallFailedTitle", comment: "")
-        let toast = String(format: NSLocalizedString("InstallFailedMessage", comment: ""),  error.localizedDescription, script)
+        var title = "Install V2rayUTool Failed";
+        var toast =  "Error: \(error),\nYou need execute scripts manually:\n \(script)";
+        if isMainland {
+            title = "安装 V2rayUTool 失败"
+            toast = "安装失败: \(error)\n, 你需要在命令行手动执行一下: \(script)"
+        }
         alertDialog(title: title, message: toast)
     }
 }
@@ -126,10 +130,18 @@ class V2rayLaunch: NSObject {
     static func showInstallAlert() {
         DispatchQueue.main.async {
             let alert = NSAlert()
-            alert.messageText = NSLocalizedString("InstallAlertTitle", comment: "")
             alert.alertStyle = .warning
-            alert.addButton(withTitle: NSLocalizedString("Install", comment: ""))
-            alert.addButton(withTitle: NSLocalizedString("Quit", comment: ""))
+            if isMainland {
+                alert.messageText = "安装V2rayUTool"
+                alert.informativeText = "V2rayU 需要使用管理员权限安装 V2rayUTool 到 ~/.V2rayU/V2rayUTool"
+                alert.addButton(withTitle: "安装")
+                alert.addButton(withTitle: "退出")
+            } else {
+                alert.messageText = " Install V2rayUTool"
+                alert.informativeText = "V2rayU needs to install V2rayUTool into ~/.V2rayU/V2rayUTool with administrator privileges"
+                alert.addButton(withTitle: "Install")
+                alert.addButton(withTitle: "Quit")
+            }
             switch alert.runModal() {
             case .alertFirstButtonReturn:
                 install()
@@ -289,13 +301,12 @@ class V2rayLaunch: NSObject {
 
         // port has been used
         if isPortOpen(port: httpPort) {
-            var toast = "http端口 \(httpPort) 已被使用, 请更换"
-            var title = "端口已被占用"
-            if Locale.current.languageCode == "en" {
-                toast = "http port \(httpPort) has been used, please replace it from advance setting"
-                title = "Port is already in use"
+            var toast = "http port \(httpPort) has been used, please replace it from advance setting"
+            var title = "Port is already in use"
+            if isMainland {
+                 toast = "http端口 \(httpPort) 已被使用, 请更换"
+                 title = "端口已被占用"
             }
-            NSLocalizedString("", comment: "")
             alertDialog(title: title, message: toast)
             DispatchQueue.main.async {
                 preferencesWindowController.show(preferencePane: .advanceTab)
@@ -306,11 +317,11 @@ class V2rayLaunch: NSObject {
 
         // port has been used
         if isPortOpen(port: sockPort) {
-            var toast = "socks端口 \(sockPort) 已被使用, 请更换"
-            var title = "端口已被占用"
-            if Locale.current.languageCode == "en" {
-                toast = "socks port \(sockPort) has been used, please replace it from advance setting"
-                title = "Port is already in use"
+            var toast = "socks port \(sockPort) has been used, please replace it from advance setting"
+            var title = "Port is already in use"
+            if isMainland {
+                toast = "socks端口 \(sockPort) 已被使用, 请更换"
+                title = "端口已被占用"
             }
             alertDialog(title: title, message: toast)
             DispatchQueue.main.async {
@@ -385,11 +396,11 @@ class V2rayLaunch: NSObject {
             let pacPort = getPacPort()
             // port has been used
             if isPortOpen(port: pacPort) {
-                var toast = "pac端口 \(pacPort) 已被使用, 请更换"
-                var title = "端口已被占用"
-                if Locale.current.languageCode == "en" {
-                    toast = "pac port \(pacPort) has been used, please replace from advance setting"
-                    title = "Port is already in use"
+                var toast = "pac port \(pacPort) has been used, please replace from advance setting"
+                var title = "Port is already in use"
+                if isMainland {
+                    toast = "pac端口 \(pacPort) 已被使用, 请更换"
+                    title = "端口已被占用"
                 }
                 alertDialog(title: title, message: toast)
                 DispatchQueue.main.async {
diff --git a/V2rayU/en.lproj/Localizable.strings b/V2rayU/en.lproj/Localizable.strings
index 489eefe..98be834 100644
--- a/V2rayU/en.lproj/Localizable.strings
+++ b/V2rayU/en.lproj/Localizable.strings
@@ -5,7 +5,3 @@
   Created by yanue on 2019/7/17.
   Copyright © 2019 yanue. All rights reserved.
 */
-/* Alert titles */
-"InstallAlertTitle" = "V2rayU needs to install V2rayUTool into ~/.V2rayU/V2rayUTool with administrator privileges";
-"InstallFailedTitle" = "Install V2rayUTool Failed"
-"InstallFailedMessage" = "Error: %s,\nYou need execute scripts manually:\n %s"
diff --git a/V2rayU/zh-Hans.lproj/Localizable.strings b/V2rayU/zh-Hans.lproj/Localizable.strings
index fe79197..98be834 100644
--- a/V2rayU/zh-Hans.lproj/Localizable.strings
+++ b/V2rayU/zh-Hans.lproj/Localizable.strings
@@ -5,6 +5,3 @@
   Created by yanue on 2019/7/17.
   Copyright © 2019 yanue. All rights reserved.
 */
-"InstallAlertTitle" = "V2rayU 需要使用管理员权限安装 V2rayUTool 到 ~/.V2rayU/V2rayUTool";
-"InstallFailedTitle" = "安装 V2rayUTool 失败"
-"InstallFailedMessage" = "安装失败: %s\n, 你需要在命令行手动执行一下: %s"