diff --git a/README.md b/README.md
index 1985974..7bc1ff4 100644
--- a/README.md
+++ b/README.md
@@ -367,15 +367,20 @@ git clone https://github.com/docmirror/dev-sidecar
 cd dev-sidecar
 
 # 注意不要使用 `npm install` 来安装依赖，因为 `lerna bootstrap` 会自动安装依赖
-lerna bootstrap
+# lerna bootstrap
 # 如果 `lerna bootstrap` 有报错，可以尝试执行如下两行命令，用yarn替换掉npm：
-#cnpm install -g yarn
-#lerna bootstrap --npm-client=yarn
+# 感觉yarn的速度会更快
+cnpm install -g yarn
+lerna bootstrap --npm-client=yarn
 
 # 运行DevSidecar
 cd packages/gui
 npm run electron
 
+# 修改.yarnrc文件设置，切换镜像源
+registry=https://registry.npmmirror.com/
+electron_mirror=https://npmmirror.com/mirrors/electron/
+electron_builder_binaries_mirror=https://npmmirror.com/mirrors/electron-builder-binaries/
 ```
 > 如果electron依赖包下载不动，可以开启ds的npm加速
 
diff --git a/packages/core/package.json b/packages/core/package.json
index 4eccff9..dcf0665 100644
--- a/packages/core/package.json
+++ b/packages/core/package.json
@@ -40,6 +40,7 @@
     "node-forge": "^0.8.2",
     "node-powershell": "^4.0.0",
     "require-context": "^1.1.0",
+    "spawn-sync": "^2.0.0",
     "through2": "^2.0.1",
     "tunnel-agent": "^0.4.3",
     "util": "^0.12.3",
diff --git a/packages/gui/package.json b/packages/gui/package.json
index 7187d90..b884eb5 100644
--- a/packages/gui/package.json
+++ b/packages/gui/package.json
@@ -3,7 +3,7 @@
   "version": "1.8.6",
   "private": false,
   "license": "MPL-2.0",
-  "main": "background.js",
+  "main": "index.js",
   "scripts": {
     "serve": "vue-cli-service serve",
     "lint": "vue-cli-service lint",