Cannot read properties of null

回答: 根据引用的内容，出现"Cannot read properties of null"错误的原因是在使用monaco.editor.create方法时没有正确获取到dom节点。解决这个问题可以检查dom元素上绑定的ref的拼写是否与函数中的一致，并确保在vue2中使用this.$refs.xxx来获取dom元素，在vue3中需要先声明一个变量并将其return出去，并在dom元素上绑定ref。对于vue3，还需要注意在获取dom节点的时机，因为vue3会先执行一遍setup函数，此时还没有dom，所以需要使用nextTick来延迟获取。<em>1</em><em>2</em><em>3</em>
#### 引用[.reference_title]
- *1* *3* [Uncaught (in promise) TypeError: Cannot readproperties of null (reading “addEventListener“)](https://blog.csdn.net/weixin_46015333/article/details/127407308)[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^v92^chatsearchT3_1"}} ] [.reference_item]
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