TypeError: Cannot read properties of undefined (reading 'chapterName')"

根据提供的引用内容，报错信息"TypeError: Cannot read properties of undefined (reading 'chapterName')"是因为在访问某个对象的属性时，该对象为undefined，无法读取属性。具体来说，根据引用\[2\]和引用\[3\]的描述，当访问store.user.state.userInfo.data.id时，userInfo对象是一个空对象，没有data属性，因此会报错。解决这个问题的方法是在访问属性之前，先确保对象存在并且属性不为undefined。可以通过判断对象是否为空对象或者使用可选链操作符（?.）来避免这个错误。
#### 引用[.reference_title]
- *1* [vue Uncaught (in promise) TypeError: Cannot read properties of undefined (reading ‘comcode‘)](https://blog.csdn.net/jungeCSND/article/details/130059965)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v91^insertT0,239^v3^insert_chatgpt"}} ] [.reference_item]
- *2* *3* [解决Uncaught (in promise) TypeError: Cannot read properties of undefined (reading ‘id‘)报错](https://blog.csdn.net/m0_57524265/article/details/131441971)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v91^insertT0,239^v3^insert_chatgpt"}} ] [.reference_item]
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