版本

package.json

@@ -49,7 +49,7 @@
     "@vue/cli-plugin-babel": "3.6.0",
     "@vue/cli-plugin-eslint": "^3.9.1",
     "@vue/cli-plugin-unit-jest": "3.6.3",
-    "@vue/cli-service": "3.6.0",
+    "@vue/cli-service": "4.4.6",
     "@vue/test-utils": "1.0.0-beta.29",
     "autoprefixer": "^9.5.1",
     "babel-core": "7.0.0-bridge.0",