diff --git a/README_EN.md b/README_EN.md
index c0563e4..022e258 100644
--- a/README_EN.md
+++ b/README_EN.md
@@ -46,6 +46,11 @@ This project distinguishes between 32-bit and 64-bit, it was compiled to 2 diffe
 
 BlackDex download：https://github.com/CodingGay/BlackDex/releases
 
+## Build
+Please make project once before running
+Please make project once before running
+Please make project once before running
+
 ## Preview
 
 ![xx](demonstration.gif)