vue3 TypeError: Cannot read properties of undefined (reading 'post')

根据你提供的引用内容，出现TypeError: Cannot read properties of undefined (reading 'post')的错误是因为在Vue3中访问了一个未定义的属性。具体来说，错误发生在读取'post'属性时，但该属性未定义或为空。为了避免这个错误
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