diff --git a/packages/frontend/src/components/MkChartLegend.vue b/packages/frontend/src/components/MkChartLegend.vue
index 1a1b4323d9..110eeca5db 100644
--- a/packages/frontend/src/components/MkChartLegend.vue
+++ b/packages/frontend/src/components/MkChartLegend.vue
@@ -6,7 +6,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 <template>
 <div :class="$style.root">
 	<button v-for="item in items" class="_button item" :class="{ disabled: item.hidden }" @click="onClick(item)">
-		<span class="box" :style="{ background: chart.config.type === 'line' ? item.strokeStyle?.toString() : item.fillStyle?.toString() }"></span>
+		<span class="box" :style="{ background: type === 'line' ? item.strokeStyle?.toString() : item.fillStyle?.toString() }"></span>
 		{{ item.text }}
 	</button>
 </div>
@@ -16,25 +16,23 @@ SPDX-License-Identifier: AGPL-3.0-only
 import { shallowRef } from 'vue';
 import { Chart, LegendItem } from 'chart.js';
 
-const props = defineProps({
-});
-
 const chart = shallowRef<Chart>();
+const type = shallowRef<string>();
 const items = shallowRef<LegendItem[]>([]);
 
 function update(_chart: Chart, _items: LegendItem[]) {
 	chart.value = _chart,
 	items.value = _items;
+	if ('type' in _chart.config) type.value = _chart.config.type;
 }
 
 function onClick(item: LegendItem) {
 	if (chart.value == null) return;
-	const { type } = chart.value.config;
-	if (type === 'pie' || type === 'doughnut') {
+	if (type.value === 'pie' || type.value === 'doughnut') {
 		// Pie and doughnut charts only have a single dataset and visibility is per item
-		chart.value.toggleDataVisibility(item.index);
+		if (item.index) chart.value.toggleDataVisibility(item.index);
 	} else {
-		chart.value.setDatasetVisibility(item.datasetIndex, !chart.value.isDatasetVisible(item.datasetIndex));
+		if (item.datasetIndex) chart.value.setDatasetVisibility(item.datasetIndex, !chart.value.isDatasetVisible(item.datasetIndex));
 	}
 	chart.value.update();
 }
diff --git a/packages/frontend/src/components/MkColorInput.vue b/packages/frontend/src/components/MkColorInput.vue
index a7a3eff5af..118aeeeb37 100644
--- a/packages/frontend/src/components/MkColorInput.vue
+++ b/packages/frontend/src/components/MkColorInput.vue
@@ -41,8 +41,8 @@ const { modelValue } = toRefs(props);
 const v = ref(modelValue.value);
 const inputEl = shallowRef<HTMLElement>();
 
-const onInput = (ev: KeyboardEvent) => {
-	emit('update:modelValue', v.value);
+const onInput = () => {
+	emit('update:modelValue', v.value ?? '');
 };
 </script>
 
diff --git a/packages/frontend/src/components/MkContextMenu.vue b/packages/frontend/src/components/MkContextMenu.vue
index e29cf472f7..c0bf5254ea 100644
--- a/packages/frontend/src/components/MkContextMenu.vue
+++ b/packages/frontend/src/components/MkContextMenu.vue
@@ -44,8 +44,8 @@ onMounted(() => {
 	let left = props.ev.pageX + 1; // 間違って右ダブルクリックした場合に意図せずアイテムがクリックされるのを防ぐため + 1
 	let top = props.ev.pageY + 1; // 間違って右ダブルクリックした場合に意図せずアイテムがクリックされるのを防ぐため + 1
 
-	const width = rootEl.value.offsetWidth;
-	const height = rootEl.value.offsetHeight;
+	const width = rootEl.value?.offsetWidth ?? 0;
+	const height = rootEl.value?.offsetHeight ?? 0;
 
 	if (left + width - window.pageXOffset >= (window.innerWidth - SCROLLBAR_THICKNESS)) {
 		left = (window.innerWidth - SCROLLBAR_THICKNESS) - width + window.pageXOffset;
@@ -63,8 +63,10 @@ onMounted(() => {
 		left = 0;
 	}
 
-	rootEl.value.style.top = `${top}px`;
-	rootEl.value.style.left = `${left}px`;
+	if (rootEl.value) {
+		rootEl.value.style.top = `${top}px`;
+		rootEl.value.style.left = `${left}px`;
+	}
 
 	document.body.addEventListener('mousedown', onMousedown);
 });
diff --git a/packages/frontend/src/components/MkDateSeparatedList.vue b/packages/frontend/src/components/MkDateSeparatedList.vue
index 0a71b689fe..b48d802ccd 100644
--- a/packages/frontend/src/components/MkDateSeparatedList.vue
+++ b/packages/frontend/src/components/MkDateSeparatedList.vue
@@ -118,34 +118,36 @@ export default defineComponent({
 			return children;
 		};
 
-		function onBeforeLeave(el: HTMLElement) {
+		function onBeforeLeave(element: Element) {
+			const el = element as HTMLElement;
 			el.style.top = `${el.offsetTop}px`;
 			el.style.left = `${el.offsetLeft}px`;
 		}
 
-		function onLeaveCanceled(el: HTMLElement) {
+		function onLeaveCancelled(element: Element) {
+			const el = element as HTMLElement;
 			el.style.top = '';
 			el.style.left = '';
 		}
 
-		return () => h(
-			defaultStore.state.animation ? TransitionGroup : 'div',
-			{
-				class: {
-					[$style['date-separated-list']]: true,
-					[$style['date-separated-list-nogap']]: props.noGap,
-					[$style['reversed']]: props.reversed,
-					[$style['direction-down']]: props.direction === 'down',
-					[$style['direction-up']]: props.direction === 'up',
-				},
-				...(defaultStore.state.animation ? {
-					name: 'list',
-					tag: 'div',
-					onBeforeLeave,
-					onLeaveCanceled,
-				} : {}),
-			},
-			{ default: renderChildren });
+		// eslint-disable-next-line vue/no-setup-props-destructure
+		const classes = {
+			[$style['date-separated-list']]: true,
+			[$style['date-separated-list-nogap']]: props.noGap,
+			[$style['reversed']]: props.reversed,
+			[$style['direction-down']]: props.direction === 'down',
+			[$style['direction-up']]: props.direction === 'up',
+		};
+
+		return () => defaultStore.state.animation ? h(TransitionGroup, {
+			class: classes,
+			name: 'list',
+			tag: 'div',
+			onBeforeLeave,
+			onLeaveCancelled,
+		}, { default: renderChildren }) : h('div', {
+			class: classes,
+		}, { default: renderChildren });
 	},
 });
 </script>
diff --git a/packages/frontend/src/components/MkDrive.folder.vue b/packages/frontend/src/components/MkDrive.folder.vue
index b0c14d1f0b..da308876c0 100644
--- a/packages/frontend/src/components/MkDrive.folder.vue
+++ b/packages/frontend/src/components/MkDrive.folder.vue
@@ -204,7 +204,7 @@ function onDragend() {
 }
 
 function go() {
-	emit('move', props.folder.id);
+	emit('move', props.folder);
 }
 
 function rename() {
diff --git a/packages/frontend/src/components/MkDrive.vue b/packages/frontend/src/components/MkDrive.vue
index 8dff73d994..396defe300 100644
--- a/packages/frontend/src/components/MkDrive.vue
+++ b/packages/frontend/src/components/MkDrive.vue
@@ -98,6 +98,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 import { nextTick, onActivated, onBeforeUnmount, onMounted, ref, shallowRef, watch } from 'vue';
 import * as Misskey from 'misskey-js';
 import MkButton from './MkButton.vue';
+import type { MenuItem } from '@/types/menu.js';
 import XNavFolder from '@/components/MkDrive.navFolder.vue';
 import XFolder from '@/components/MkDrive.folder.vue';
 import XFile from '@/components/MkDrive.file.vue';
@@ -426,7 +427,7 @@ function chooseFolder(folderToChoose: Misskey.entities.DriveFolder) {
 	}
 }
 
-function move(target?: Misskey.entities.DriveFolder) {
+function move(target?: Misskey.entities.DriveFolder | Misskey.entities.DriveFolder['id' | 'parentId']) {
 	if (!target) {
 		goRoot();
 		return;
@@ -612,7 +613,7 @@ function fetchMoreFiles() {
 }
 
 function getMenu() {
-	return [{
+	const menu: MenuItem[] = [{
 		type: 'switch',
 		text: i18n.ts.keepOriginalUploading,
 		ref: keepOriginal,
@@ -633,7 +634,7 @@ function getMenu() {
 	}, folder.value ? {
 		text: i18n.ts.renameFolder,
 		icon: 'ti ti-forms',
-		action: () => { renameFolder(folder.value); },
+		action: () => { folder.value && renameFolder(folder.value); },
 	} : undefined, folder.value ? {
 		text: i18n.ts.deleteFolder,
 		icon: 'ti ti-trash',
@@ -643,6 +644,8 @@ function getMenu() {
 		icon: 'ti ti-folder-plus',
 		action: () => { createFolder(); },
 	}];
+
+	return menu;
 }
 
 function showMenu(ev: MouseEvent) {