storybook vite works

.storybook/main.js

@@ -2,7 +2,7 @@ const path = require("path");
 const preprocess = require("svelte-preprocess");
 
 module.exports = {
-  // core: { builder: "storybook-builder-vite" },
+  core: { builder: "storybook-builder-vite" },
   staticDirs: ["../static", "../pictures"],
   stories: [
     "../src/**/*.stories.mdx",
@@ -18,6 +18,8 @@ module.exports = {
     preprocess: preprocess(),
   },
      async viteFinal(config, { configType }) {
+
+    if(!config.resolve.alias) config.resolve.alias = {};
     // customize the Vite config here
     config.resolve.alias.$lib = path.resolve(__dirname, "../src/lib/");
     config.resolve.alias.$app = path.resolve(__dirname, "../fake/app/");

package.json

@@ -24,7 +24,7 @@
     "eslint-plugin-svelte3": "^3.4.1",
     "prettier": "~2.5.1",
     "prettier-plugin-svelte": "^2.6.0",
-    "storybook-builder-vite": "0.1.17",
+    "storybook-builder-vite": "0.1.21",
     "svelte": "^3.46.4",
     "vite": "^2.7.0"
   },