diff --git a/cmd/gf/internal/cmd/cmd_build.go b/cmd/gf/internal/cmd/cmd_build.go
index f2889dcfa..2255985b2 100644
--- a/cmd/gf/internal/cmd/cmd_build.go
+++ b/cmd/gf/internal/cmd/cmd_build.go
@@ -143,7 +143,7 @@ func (c cBuild) Index(ctx context.Context, in cBuildInput) (out *cBuildOutput, e
 
 	mlog.SetHeaderPrint(true)
 
-	mlog.Debugf(`build input: %+v`, in)
+	mlog.Debugf(`build command input: %+v`, in)
 	// Necessary check.
 	if gproc.SearchBinary("go") == "" {
 		mlog.Fatalf(`command "go" not found in your environment, please install golang first to proceed this command`)
diff --git a/cmd/gf/internal/cmd/cmd_docker.go b/cmd/gf/internal/cmd/cmd_docker.go
index ddd78bcbb..825e2255a 100644
--- a/cmd/gf/internal/cmd/cmd_docker.go
+++ b/cmd/gf/internal/cmd/cmd_docker.go
@@ -92,6 +92,8 @@ type cDockerInput struct {
 type cDockerOutput struct{}
 
 func (c cDocker) Index(ctx context.Context, in cDockerInput) (out *cDockerOutput, err error) {
+	mlog.Debugf(`docker command input: %+v`, in)
+
 	// Necessary check.
 	if gproc.SearchBinary("docker") == "" {
 		mlog.Fatalf(`command "docker" not found in your environment, please install docker first to proceed this command`)
@@ -101,6 +103,7 @@ func (c cDocker) Index(ctx context.Context, in cDockerInput) (out *cDockerOutput
 	in.Build += " --exit"
 	if in.Main != "" {
 		if err = gproc.ShellRun(ctx, fmt.Sprintf(`gf build %s %s`, in.Main, in.Build)); err != nil {
+			mlog.Debugf(`build binary failed with error: %+v`, err)
 			return
 		}
 	}
@@ -108,6 +111,7 @@ func (c cDocker) Index(ctx context.Context, in cDockerInput) (out *cDockerOutput
 	// Shell executing.
 	if in.Shell != "" && gfile.Exists(in.Shell) {
 		if err = c.exeDockerShell(ctx, in.Shell); err != nil {
+			mlog.Debugf(`build docker failed with error: %+v`, err)
 			return
 		}
 	}
diff --git a/cmd/gf/main.go b/cmd/gf/main.go
index 7a29aa0e5..fffa31370 100644
--- a/cmd/gf/main.go
+++ b/cmd/gf/main.go
@@ -77,7 +77,9 @@ func main() {
 	}
 	err = command.RunWithError(ctx)
 	if err != nil {
-		panic(err)
+		// Exit with error message and exit code 1.
+		// It is very important to exit the command process with code 1.
+		mlog.Fatalf(`%+v`, err)
 	}
 }