diff --git a/VERSION b/VERSION
index 3ef5fad..e8ea05d 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.2.4-dev
+1.2.4
diff --git a/path_util/path.go b/path_util/path.go
deleted file mode 100644
index de20436..0000000
--- a/path_util/path.go
+++ /dev/null
@@ -1,129 +0,0 @@
-// Copyright 2019 Communication Service/Software Laboratory, National Chiao Tung University (free5gc.org)
-//
-// SPDX-License-Identifier: Apache-2.0
-
-package path_util
-
-import (
-	"bufio"
-	"os"
-	"path/filepath"
-	"strings"
-
-	"github.com/omec-project/util/logger"
-)
-
-func Free5gcPath(path string) string {
-	rootCode := strings.Split(path, "/")[0]
-	cleanPath := filepath.Clean(path)
-	targetFilePath := cleanPath[len(rootCode)+1:]
-
-	var pwd string
-	if pwdTmp, err := os.Getwd(); err != nil {
-		logger.PathLog.Errorln(err)
-	} else {
-		pwd = pwdTmp
-	}
-	currentPath := filepath.Clean(pwd)
-
-	// Module mode
-	target := ""
-	if returnPath, ok := FindModuleRoot(currentPath, rootCode); ok {
-		target = returnPath + filepath.Clean("/"+targetFilePath)
-	}
-
-	// Non-module mode
-	if target == "" {
-		binPathDir, err := filepath.Abs(filepath.Dir(os.Args[0]))
-		if err != nil {
-			logger.PathLog.Errorln(err)
-		}
-
-		rootPath := ""
-		if strings.Contains(currentPath, rootCode) {
-			if returnPath, ok := FindRoot(currentPath, rootCode, targetFilePath); ok {
-				rootPath = returnPath
-			} else if returnPath, ok := FindRoot(currentPath, rootCode, "lib"); ok {
-				rootPath = returnPath
-			}
-		}
-		if strings.Contains(binPathDir, rootCode) {
-			if returnPath, ok := FindRoot(binPathDir, rootCode, targetFilePath); ok {
-				rootPath = returnPath
-			} else if returnPath, ok := FindRoot(binPathDir, rootCode, "lib"); ok {
-				rootPath = returnPath
-			}
-		}
-
-		if rootPath != "" {
-			target = rootPath + cleanPath
-		} else {
-			binPathDirParent := GetParentDirectory(binPathDir)
-			binPathDirParentWithTargetFilePath := binPathDirParent + filepath.Clean("/"+targetFilePath)
-			target = binPathDirParentWithTargetFilePath
-		}
-	}
-
-	location, err := filepath.Rel(currentPath, target)
-	if err != nil {
-		logger.PathLog.Errorln(err)
-	}
-
-	return location
-}
-
-func Exists(fpath string) bool {
-	_, err := os.Stat(fpath)
-	return !os.IsNotExist(err)
-}
-
-func FindRoot(path string, rootCode string, objName string) (string, bool) {
-	rootPath := path
-	loc := strings.LastIndex(rootPath, rootCode)
-	for loc != -1 {
-		rootPath = rootPath[:loc+len(rootCode)]
-		if Exists(rootPath + filepath.Clean("/"+objName)) {
-			return rootPath[:loc], true
-		}
-		rootPath = rootPath[:loc]
-		loc = strings.LastIndex(rootPath, rootCode)
-	}
-	return "", false
-}
-
-func FindModuleRoot(path string, rootCode string) (string, bool) {
-	moduleFilePath := path + filepath.Clean("/go.mod")
-	if Exists(moduleFilePath) {
-		var file *os.File
-		if fileTmp, err := os.Open(moduleFilePath); err != nil {
-			logger.PathLog.Fatalf("cannot open %s: %+v", moduleFilePath, err)
-		} else {
-			file = fileTmp
-		}
-		defer func() {
-			if err := file.Close(); err != nil {
-				logger.PathLog.Warnf("file %s cannot close: %v", moduleFilePath, err)
-			}
-		}()
-
-		reader := bufio.NewReader(file)
-		moduleDeclearation, _, err := reader.ReadLine()
-		if err != nil {
-			logger.PathLog.Warnf("read Line failed: %+v", err)
-		}
-		if string(moduleDeclearation) == "module "+rootCode {
-			return path, true
-		}
-	}
-
-	abs, err := filepath.Abs(path + string(filepath.Separator) + "..")
-	if err != nil || abs == filepath.Clean("/") {
-		return "", false
-	}
-
-	return FindModuleRoot(abs, rootCode)
-}
-
-func GetParentDirectory(dirctory string) string {
-	return filepath.Dir(dirctory)
-}
diff --git a/path_util/path_test.go b/path_util/path_test.go
deleted file mode 100644
index 7ee1adc..0000000
--- a/path_util/path_test.go
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright 2019 Communication Service/Software Laboratory, National Chiao Tung University (free5gc.org)
-//
-// SPDX-License-Identifier: Apache-2.0
-
-package path_util
-
-import (
-	"testing"
-
-	"github.com/omec-project/util/logger"
-)
-
-func TestFree5gcPath(t *testing.T) {
-	logger.PathLog.Infoln(Free5gcPath("free5gc/abcdef/abcdef.pem"))
-}