<script setup>` cannot contain ES module exports.

The error message you're seeing suggests that you're using the `<script setup>` syntax in a Vue 3 single-file component, and you're trying to export an ES module from within it.

The `<script setup>` syntax is a new feature in Vue 3 that allows you to write more concise and readable component code. However, it has some limitations, and one of them is that it cannot contain ES module exports.

To fix this issue, you should move your export statements outside of the `<script setup>` block. For example, you can use a separate `<script>` block to export your component:

<template>
  <!-- your template code -->
</template>

<script setup>
  // your component logic
</script>

<script>
  export default {
    // your component options
  }
</script>

Alternatively, you can use the `defineComponent` function from the `vue` package to define your component options:

<template>
  <!-- your template code -->
</template>

<script setup>
  import { defineComponent } from 'vue'

  // your component logic
</script>

<script>
  export default defineComponent({
    // your component options
  })
</script>

Either way, make sure that your export statements are outside of the `<script setup>` block, and you should be able to fix the error.