diff --git a/tools/ConvertVector/Program.cs b/tools/ConvertVector/Program.cs
index f0a46c8..35dc635 100644
--- a/tools/ConvertVector/Program.cs
+++ b/tools/ConvertVector/Program.cs
@@ -4,62 +4,72 @@ using System.IO;
 using System.Linq;
 using System.Text.RegularExpressions;
 
+public class FileLocation
+{
+    public required string Path { get; init; }
+    public required int Line { get; init; }
+    public required int Column { get; init; }
+    public required string Letter { get; init; }
+};
+
+
 public static class Program
 {
-  private static List<FileLocation> CreateLocations(string path)
-  {
-    List<string> list = ((IEnumerable<string>) File.ReadAllLines(path)).Where<string>((Func<string, bool>) (line => line.Contains("error CS1061: "))).ToList<string>();
-    List<FileLocation> locations = new List<FileLocation>();
-    foreach (string input in list)
+    private static List<FileLocation> CreateLocations(string path)
     {
-      string pattern = "([A-Za-z]:\\\\[^\\\\]+\\\\[^\\\\]+(?:\\\\[^\\\\]+)*\\\\[^\\\\]+\\.cs)\\((\\d+),(\\d+)\\)";
-      Match match = Regex.Match(input, pattern);
-      if (match.Success)
-      {
-        string str1 = match.Groups[1].Value;
-        string s1 = match.Groups[2].Value;
-        string s2 = match.Groups[3].Value;
-        string str2 = "";
-        if (input.Contains("'x'에 대한"))
-          str2 = "x";
-        if (input.Contains("'y'에 대한"))
-          str2 = "y";
-        if (input.Contains("'z'에 대한"))
-          str2 = "z";
-        FileLocation fileLocation = new FileLocation()
+        List<string> list = ((IEnumerable<string>)File.ReadAllLines(path)).Where<string>((Func<string, bool>)(line => line.Contains("error CS1061: "))).ToList<string>();
+        List<FileLocation> locations = new List<FileLocation>();
+        foreach (string input in list)
         {
-          Path = str1,
-          Line = int.Parse(s1),
-          Column = int.Parse(s2),
-          Letter = str2
-        };
-        locations.Add(fileLocation);
-      }
+            string pattern = "([A-Za-z]:\\\\[^\\\\]+\\\\[^\\\\]+(?:\\\\[^\\\\]+)*\\\\[^\\\\]+\\.cs)\\((\\d+),(\\d+)\\)";
+            Match match = Regex.Match(input, pattern);
+            if (match.Success)
+            {
+                string str1 = match.Groups[1].Value;
+                string s1 = match.Groups[2].Value;
+                string s2 = match.Groups[3].Value;
+                string str2 = "";
+                if (input.Contains("'x'에 대한"))
+                    str2 = "x";
+                if (input.Contains("'y'에 대한"))
+                    str2 = "y";
+                if (input.Contains("'z'에 대한"))
+                    str2 = "z";
+                FileLocation fileLocation = new FileLocation()
+                {
+                    Path = str1,
+                    Line = int.Parse(s1),
+                    Column = int.Parse(s2),
+                    Letter = str2
+                };
+                locations.Add(fileLocation);
+            }
+        }
+
+        return locations;
     }
-    return locations;
-  }
 
-  private static void Change(FileLocation location)
-  {
-    string[] contents = File.ReadAllLines(location.Path);
-    List<string> list = ((IEnumerable<char>) contents[location.Line - 1].ToCharArray()).Select<char, string>((Func<char, string>) (x => x.ToString() ?? "")).ToList<string>();
-    list[location.Column - 2] = "[";
-    if (location.Letter == "x")
-      list[location.Column - 1] = "0]";
-    else if (location.Letter == "y")
-      list[location.Column - 1] = "1]";
-    else if (location.Letter == "z")
-      list[location.Column - 1] = "2]";
-    string str = string.Join("", (IEnumerable<string>) list);
-    contents[location.Line - 1] = str;
-    //File.WriteAllLines(location.Path, contents);
-  }
+    private static void Change(FileLocation location)
+    {
+        string[] contents = File.ReadAllLines(location.Path);
+        List<string> list = ((IEnumerable<char>)contents[location.Line - 1].ToCharArray()).Select<char, string>((Func<char, string>)(x => x.ToString() ?? "")).ToList<string>();
+        list[location.Column - 2] = "[";
+        if (location.Letter == "x")
+            list[location.Column - 1] = "0]";
+        else if (location.Letter == "y")
+            list[location.Column - 1] = "1]";
+        else if (location.Letter == "z")
+            list[location.Column - 1] = "2]";
+        string str = string.Join("", (IEnumerable<string>)list);
+        contents[location.Line - 1] = str;
+        
+        File.WriteAllLines(location.Path, contents);
+    }
 
-  public static void Main(string[] args)
-  {
-    var locations = Program.CreateLocations("../../../../../error.log");
-    foreach (FileLocation location in locations)
-      Program.Change(location);
-  }
-}
-    
\ No newline at end of file
+    public static void Main(string[] args)
+    {
+        var locations = Program.CreateLocations("../../../../../error.log");
+        foreach (FileLocation location in locations.DistinctBy(x => x.Path + x.Line))
+            Change(location);
+    }
+}
\ No newline at end of file