diff --git a/README.md b/README.md
index 3d54596..dcae05e 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,11 @@
+# 调试
+
+```
+rm -rf node_modules/internal-carto.js/ && npm i && bundle exec grunt
+
+```
+
+
 # CARTO.js 4
 
 CARTO.js is a JavaScript library to create custom location intelligence applications that leverage the power of [CARTO](https://carto.com/). It is the library that powers [Builder](https://carto.com/builder/) and it is part of the [Engine](https://carto.com/pricing/engine/) ecosystem.