diff --git a/Assets/lilToon/Editor/lilDirectoryManager.cs b/Assets/lilToon/Editor/lilDirectoryManager.cs
index f370ca8c..89d8e811 100644
--- a/Assets/lilToon/Editor/lilDirectoryManager.cs
+++ b/Assets/lilToon/Editor/lilDirectoryManager.cs
@@ -29,7 +29,7 @@ internal class lilDirectoryManager
         public static string GetShaderFolderPath()          { return GUIDToPath("ac0a8f602b5e72f458f4914bf08f0269"); } // "Assets/lilToon/Shader"
         public static string GetShaderPipelinePath()        { return GUIDToPath("32299664512e2e042bbc351c1d46d383"); } // "Assets/lilToon/Shader/Includes/lil_pipeline.hlsl";
         public static string GetShaderCommonPath()          { return GUIDToPath("5520e766422958546bbe885a95d5a67e"); } // "Assets/lilToon/Shader/Includes/lil_common.hlsl";
-        public static string GetEditorLanguageFileGUID()    { return GUIDToPath("a63ad2f5296744a4bad011de744ba8ba"); } // "Assets/lilToon/Editor/Resources/lang.txt"
+        [System.Obsolete] public static string GetEditorLanguageFileGUID()    { return GUIDToPath("a63ad2f5296744a4bad011de744ba8ba"); } // "Assets/lilToon/Editor/Resources/lang.txt"
         public static string GetGUIBoxInDarkPath()          { return GUIDToPath("bb1313c9ea1425b41b74e98fd04bcbc8"); } // "Assets/lilToon/Editor/Resources/gui_box_inner_dark.guiskin"
         public static string GetGUIBoxInLightPath()         { return GUIDToPath("f18d71f528511e748887f5e246abcc16"); } // "Assets/lilToon/Editor/Resources/gui_box_inner_light.guiskin"
         public static string GetGUIBoxInHalfDarkPath()      { return GUIDToPath("a72199a4c9cc3714d8edfbc5d3b13823"); } // "Assets/lilToon/Editor/Resources/gui_box_inner_half_dark.guiskin"
diff --git a/Assets/lilToon/Editor/lilLanguageManager.cs b/Assets/lilToon/Editor/lilLanguageManager.cs
index 80e9eece..040b4a44 100644
--- a/Assets/lilToon/Editor/lilLanguageManager.cs
+++ b/Assets/lilToon/Editor/lilLanguageManager.cs
@@ -88,6 +88,7 @@ public static void LoadCustomLanguage(string langFileGUID)
             LoadLanguage(lilDirectoryManager.GUIDToPath(langFileGUID));
         }
 
+        [Obsolete]
         public static void InitializeLanguage()
         {
             if(langSet.languageNum == -1)
@@ -107,14 +108,18 @@ public static void InitializeLanguage()
 
         public static void UpdateLanguage()
         {
+            #pragma warning disable CS0612
             string langPath = lilDirectoryManager.GetEditorLanguageFileGUID();
+            #pragma warning restore CS0612
             LoadLanguage(langPath);
             InitializeLabels();
         }
 
         public static void SelectLang()
         {
+            #pragma warning disable CS0612
             InitializeLanguage();
+            #pragma warning restore CS0612
             int numbuf = langSet.languageNum;
             langSet.languageNum = EditorGUILayout.Popup("Language", langSet.languageNum, langSet.languageNames.Split('\t'));
             if(numbuf != langSet.languageNum) UpdateLanguage();
diff --git a/Assets/lilToon/Editor/lilStartup.cs b/Assets/lilToon/Editor/lilStartup.cs
index 4be571b3..45d72471 100644
--- a/Assets/lilToon/Editor/lilStartup.cs
+++ b/Assets/lilToon/Editor/lilStartup.cs
@@ -18,7 +18,9 @@ public static void lilStartupMethod()
         {
             //------------------------------------------------------------------------------------------------------------------------------
             // Variables
+            #pragma warning disable CS0612
             lilLanguageManager.InitializeLanguage();
+            #pragma warning restore CS0612
 
             AssetDatabase.importPackageStarted -= PackageVersionChecker;
             AssetDatabase.importPackageStarted += PackageVersionChecker;
diff --git a/Assets/lilToon/Editor/lilToonEditorUtils.cs b/Assets/lilToon/Editor/lilToonEditorUtils.cs
index 035b27da..5ecd2bbd 100644
--- a/Assets/lilToon/Editor/lilToonEditorUtils.cs
+++ b/Assets/lilToon/Editor/lilToonEditorUtils.cs
@@ -17,6 +17,7 @@ namespace lilToon
 {
     public static class lilToonEditorUtils
     {
+        #pragma warning disable CS0612
         //------------------------------------------------------------------------------------------------------------------------------
         // Constant
         private const string menuPathAssets                 = "Assets/lilToon/";
@@ -734,7 +735,8 @@ private static bool CheckImageExtension()
                    assetPath.EndsWith(".jpeg", StringComparison.OrdinalIgnoreCase);
         }
 
-        public static string GetLoc(string value) { return lilLanguageManager.GetLoc(value); }
+        #pragma warning restore CS0612
+        [Obsolete] public static string GetLoc(string value) { return lilLanguageManager.GetLoc(value); }
     }
 
 #if LILTOON_DISABLE_ASSET_MODIFICATION == false
diff --git a/Assets/lilToon/Editor/lilToonPreset.cs b/Assets/lilToon/Editor/lilToonPreset.cs
index eb00b425..7c056699 100644
--- a/Assets/lilToon/Editor/lilToonPreset.cs
+++ b/Assets/lilToon/Editor/lilToonPreset.cs
@@ -180,6 +180,7 @@ public class lilPresetWindow : EditorWindow
         private bool isShowFeatures = false;
         private bool isShowTextures = false;
 
+        #pragma warning disable CS0612
         private void OnGUI()
         {
             if(!(Selection.activeObject is Material)){
@@ -390,6 +391,7 @@ private void OnGUI()
 
             EditorGUILayout.EndScrollView();
         }
+        #pragma warning restore CS0612
 
         private void CopyPropertiesToPreset(Material material)
         {
@@ -528,7 +530,7 @@ private void ToggleAllTextures(Material material, bool val)
             }
         }
 
-        public static string GetLoc(string value) { return lilLanguageManager.GetLoc(value); }
+        [Obsolete] public static string GetLoc(string value) { return lilLanguageManager.GetLoc(value); }
     }
     #endregion
 }