diff --git a/build/webpack.config.js b/build/webpack.config.js
index 311114c6371d16dc9e6731a719993498f7d43c42..6aceac2cdace00344cb5bbfbf304e737b5853e6c 100644
--- a/build/webpack.config.js
+++ b/build/webpack.config.js
@@ -50,7 +50,7 @@ if (process.env.UNI_VIEW) { // 方便调试
 }
 module.exports = function configureWebpack (config) {
   if (process.env.UNI_VIEW === 'true') {
-    delete config.externals['vue']
+    config.externals && (delete config.externals['vue'])
     alias['vue$'] = resolve('packages/uni-app-plus/dist/view.runtime.esm.js')
   }