UPDATE

package.json

@@ -8,12 +8,12 @@
   },
   "dependencies": {
     "guess": "^1.0.2",
-    "less": "^4.1.3",
-    "less-loader": "^11.1.0",
     "vue": "^3.2.37"
   },
   "devDependencies": {
     "@vitejs/plugin-vue": "^3.0.1",
+    "less": "^4.1.3",
+    "less-loader": "^11.1.0",
     "vite": "^3.0.1"
   }
 }

vite.config.js

 import { defineConfig } from 'vite'
 import vue from '@vitejs/plugin-vue'
+import path from 'path'
+
 
 // https://vitejs.dev/config/
 export default defineConfig({
+  resolve: {
+    alias: {
+      '@': path.resolve(__dirname, './src')
+    }
+  },
   server: {
     host: true
   },
-  plugins: [vue()]
-})
+  plugins: [vue() ],
+
+})
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