모달 닫기 버튼 에러

모달 띄우는 부분은 잘되는데 닫는부분에서 에러가 나는데요

이유를 모르겠습니다.

콘솔창에서는

runtime-core.esm-bundler.js:38 [Vue warn]: Unhandled error during execution of native event handler
at <BaseTransition appear=false persisted=false mode=undefined ... >
at <Transition createAt=undefined >
at <AppModal modelValue=true onUpdate:modelValue=fn title="게시글" ... >
at <PostModal modelValue=true onUpdate:modelValue=fn title="안녕하세요11" ... >
at <PostListView onVnodeUnmounted=fn<onVnodeUnmounted> ref=Ref< Proxy {__v_skip: true} > >
at <RouterView>
at <TheView>
at <App>
warn @ runtime-core.esm-bundler.js:38
logError @ runtime-core.esm-bundler.js:212
handleError @ runtime-core.esm-bundler.js:204
callWithErrorHandling @ runtime-core.esm-bundler.js:158
callWithAsyncErrorHandling @ runtime-core.esm-bundler.js:164
invoker @ runtime-dom.esm-bundler.js:369
runtime-core.esm-bundler.js:218 Uncaught TypeError: str.charAt is not a function
at shared.esm-bundler.js:552:53
at shared.esm-bundler.js:534:37
at shared.esm-bundler.js:556:62
at shared.esm-bundler.js:534:37
at emit$1 (runtime-core.esm-bundler.js:668:40)
at runtime-core.esm-bundler.js:7348:53
at ComputedRefImpl.set [as _setter] (PostModal.vue:42:3)
at set value [as value] (reactivity.esm-bundler.js:1149:14)
at closeModal (PostModal.vue:48:13)
at callWithErrorHandling (runtime-core.esm-bundler.js:155:22)

postmodal.vue

import AppModal from '@/components/AppModal.vue';

import { computed } from 'vue';

const props = defineProps({

modelValue: Boolean,

title: String,

content: String,

createdAt: [String, Number],

});

const emit = defineEmits(['update:modelValue']);

const show = computed({

get() {

console.log('get.show.value:', show.value);

return props.modelValue;

set(value) {

emit(['update:modelValue', value]);

console.log('set.show.value:', show.value);

});

const closeModal = () => {

console.log(show.value);

show.value = false;

};

</script>

appmodal.vue

defineProps({

modelValue: Boolean,

title: String,

});

defineEmits(['close', 'update:modelValue']);

</script>

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