diff --git a/coalMiningApp/app/src/main/res/layout/activity_mining.xml b/coalMiningApp/app/src/main/res/layout/activity_mining.xml
index 58081c0..b32cba7 100644
--- a/coalMiningApp/app/src/main/res/layout/activity_mining.xml
+++ b/coalMiningApp/app/src/main/res/layout/activity_mining.xml
@@ -1,7 +1,11 @@
 <?xml version="1.0" encoding="utf-8"?>
 <layout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent">
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools">
+
+    <data>
+
+    </data>
 
     <LinearLayout
         android:layout_width="match_parent"