调整

source/src/test/index.ts

@@ -0,0 +1,8 @@
+import Vue from "vue";
+import App from "./index.vue";
+
+Vue.config.productionTip = false;
+
+new Vue({
+  render: (h) => h(App),
+}).$mount("#app");

source/src/test/index.vue

@@ -0,0 +1,19 @@
+<template>
+  <div id="app">test</div>
+</template>
+
+<script lang="ts">
+import {Component, Vue} from "vue-property-decorator";
+
+@Component({
+  components: {},
+})
+export default class Index extends Vue {
+}
+</script>
+
+<style>
+#app {
+
+}
+</style>