diff --git a/doc/images/wechat.jpg b/doc/images/wechat.jpg
index f6a01c94..005112a5 100644
Binary files a/doc/images/wechat.jpg and b/doc/images/wechat.jpg differ
diff --git a/tools/goctl/util/project/project.go b/tools/goctl/util/project/project.go
index 6d8b33b4..8c470b65 100644
--- a/tools/goctl/util/project/project.go
+++ b/tools/goctl/util/project/project.go
@@ -62,6 +62,7 @@ func Prepare(projectDir string, checkGrpcEnv bool) (*Project, error) {
 	if err != nil {
 		return nil, err
 	}
+
 	goMod = strings.TrimSpace(ret)
 	if goMod == os.DevNull {
 		goMod = ""