fix

src/components/index.js

@@ -0,0 +1,16 @@
+import Vue from 'vue'
+import upperFirst from 'lodash/upperFirst'
+import camelCase from 'lodash/camelCase'
+
+const requireComponent = require.context(
+  '@/components', true, /\.vue$/
+)
+
+requireComponent.keys().forEach(fileName => {
+  const componentConfig = requireComponent(fileName)
+
+  const componentName = upperFirst(
+    camelCase(fileName.replace(/^\.\//, '').replace(/\.\w+$/, ''))
+  )
+  Vue.component(componentName, componentConfig.default || componentConfig)
+})