diff --git a/cmd/serve.go b/cmd/serve.go
index bdc76b95e..f9c71b2e6 100644
--- a/cmd/serve.go
+++ b/cmd/serve.go
@@ -26,7 +26,8 @@ import (
 	"net/http"
 	"net/url"
 	"os"
-	"path"
+	"os/exec"
+	"path/filepath"
 	"strconv"
 	"strings"
 )
@@ -73,6 +74,15 @@ func autoPort() string {
 	return "8991"
 }
 
+func exePath() (string, error) {
+	file, err := exec.LookPath(os.Args[0])
+	if err != nil {
+		return "", err
+	}
+
+	return filepath.Abs(file)
+}
+
 // search packages
 func runServe(cmd *Command, args []string) {
 	// Check flags.
@@ -318,7 +328,11 @@ func AutoRun() error {
 			Files: []*os.File{nil, nil, nil},
 		}
 
-		p := path.Join(curPath, "gopm")
+		p, err := exePath()
+		if err != nil {
+			return err
+		}
+
 		_, err = os.StartProcess(p, []string{"gopm", "serve", "-l"}, attr)
 		if err != nil {
 			return err
@@ -376,8 +390,9 @@ func getPidPath() (string, error) {
 		return "", err
 	}
 
-	pFile := strings.Replace("~/.gopm/var/pid", "~", homeDir, -1)
-	return pFile, nil
+	pFile := strings.Replace("~/.gopm/var/", "~", homeDir, -1)
+	os.MkdirAll(pFile, os.ModePerm)
+	return pFile + "pid", nil
 }
 
 func startService(listen, port string) error {
diff --git a/build.sh b/install.sh
similarity index 87%
rename from build.sh
rename to install.sh
index 0c59d1202..9f89ab84f 100755
--- a/build.sh
+++ b/install.sh
@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 
-if [ ! -f build.sh ]; then
+if [ ! -f install.sh ]; then
 echo 'build.sh must be run within its container folder' 1>&2
 exit 1
 fi 
@@ -14,7 +14,7 @@ fi
 gofmt -w $CURDIR
 
 cd $NEWPATH
-go build
+go install
 cd $CURDIR
 
 echo 'Build successfully!'