diff --git a/demo/index.md b/demo/index.md
index f03a04f6..79a61b08 100644
--- a/demo/index.md
+++ b/demo/index.md
@@ -1,4 +1,4 @@
-demo 是演示 ficus 功能的事例文件夹，一共有三个子文件夹：
+![]()![]()![]()![]()![]()![]()![]()![]()![]()![]()![]()![]()![]()![]()![]()![]()demo 是演示 ficus 功能的事例文件夹，一共有三个子文件夹：
 
 `demo/2022` 文件夹记录着 2022 年的笔记，共有如下文件：
 
diff --git a/src/renderer/components/mindEditor/FicTree.vue b/src/renderer/components/mindEditor/FicTree.vue
index ebec90fb..746eae05 100644
--- a/src/renderer/components/mindEditor/FicTree.vue
+++ b/src/renderer/components/mindEditor/FicTree.vue
@@ -362,7 +362,7 @@ export default defineComponent({
       })
       ficTree.on('node_mousedown', (node, e) => {
         if (node.nodeData.data.type === 'root') {
-          // Cannot operate
+          // Cannot Drag
           ficTree.emit('mouseup', e)
         }
       })
@@ -371,7 +371,6 @@ export default defineComponent({
       bus.on('sendToFicTree', (obj) => {
         const rawData = JSON.parse(JSON.stringify(obj))
         bfs(rawData)
-        // console.log(rawData)
         ficTree.setData(rawData)
         mode = store.getters.getMode // 2: Tree; 5: Forest
         setStyle()
@@ -420,18 +419,30 @@ export default defineComponent({
       dropdownType.value = ''
     }
 
+    function hasRoot () {
+      return activeNodes.value.findIndex(node => {
+        return node.nodeData.data.type === 'root'
+      }) !== -1
+    }
+
     function copy () {
-      copyData = ficTree.renderer.copyNode()
+      if (!hasRoot()) {
+        copyData = ficTree.renderer.copyNode()
+      }
       hide()
     }
     function cut () {
-      ficTree.execCommand('CUT_NODE', _copyData => {
-        copyData = _copyData
-      })
+      if (!hasRoot()) {
+        ficTree.execCommand('CUT_NODE', _copyData => {
+          copyData = _copyData
+        })
+      }
       hide()
     }
     function paste () {
-      ficTree.execCommand('PASTE_NODE', copyData)
+      if (copyData !== null) {
+        ficTree.execCommand('PASTE_NODE', copyData)
+      }
       hide()
     }
 
diff --git a/src/renderer/components/sideBar/SideBar.vue b/src/renderer/components/sideBar/SideBar.vue
index 56891c77..1e6c598e 100644
--- a/src/renderer/components/sideBar/SideBar.vue
+++ b/src/renderer/components/sideBar/SideBar.vue
@@ -193,7 +193,6 @@ import PropBar from '@/renderer/components/sideBar/PropBar'
 import ForestBar from '@/renderer/components/sideBar/ForestBar'
 import GraphBar from '@/renderer/components/sideBar/GraphBar'
 import PreBar from '@/renderer/components/sideBar/PreBar'
-import SpinLoading from '@/renderer/assets/SpinLoading.vue'
 
 export default {
   name: 'SideBar',
@@ -201,7 +200,6 @@ export default {
     contextmenu: directive
   },
   components: {
-    SpinLoading,
     PreBar,
     GraphBar,
     ForestBar,
diff --git a/vue.config.js b/vue.config.js
index 5b536aae..67c01551 100644
--- a/vue.config.js
+++ b/vue.config.js
@@ -26,7 +26,7 @@ module.exports = defineConfig({
                 'universal'
               ]
             }
-          ],
+          ]
         }
       },
       externals: ['chokidar']