Error ts(2322) in v-on 'void' is not assignable to type 'undefined'

[drocha87]

Hey guys, I don't know if this problem is related to volar or vue3, but I realized that after my volar upgraded to version 0.27.17 I started to receive error messages when using my components.

Maybe the way I'm typing the emit event was wrong? I'm typing it inside the component like this like this.

<script lang="ts">
import { defineComponent, ref } from 'vue'
import { Question } from '../types'

...

interface Answer {
 ...
}

export default defineComponent({
  components: {
    ResourceQuestion,
  },

  props: {
    ...
  },

  setup(props) {
    ...
    const emit = defineEmits<{
      (event: 'answer', data: Answer): void
    }>()

    ...
    return {
    ...
    }
  },
})
</script>

}>()

volar version: 0.27.17
vscode version: 1.60.0
typescript version: 4.4.2

[johnsoncodehk]

This is known vue type issue, please try update your vue version to latest.

[johnsoncodehk]

Duplicate of #460

[drocha87]

Thank you, updating the deps indeed fixed the problem!!