diff --git a/.env b/.env
new file mode 100644
index 0000000000..1b043c3872
--- /dev/null
+++ b/.env
@@ -0,0 +1,2 @@
+port = '81'
+
diff --git a/vue.config.js b/vue.config.js
index 4856ed02a7..88b1922d18 100644
--- a/vue.config.js
+++ b/vue.config.js
@@ -33,7 +33,7 @@ module.exports = {
     port: port,
     open: true,
     overlay: {
-      warnings: false,
+      warnings: true,
       errors: true
     },
     before: require('./mock/mock-server.js')