Cannot read properties of undefined (reading 'projectManagerName')

“Cannot read properties of undefined (reading 'projectManagerName')”错误表示尝试访问一个未定义的值的属性或方法。这通常发生在你试图访问一个未初始化的对象或给其赋了undefined值的数组或字符串时。为了解决这个错误，你应该在尝试使用之前检查要访问的对象是否存在。你可以使用typeof运算符来确定变量是否为undefined。例如，你可以这样写代码来解决这个错误：

if (typeof projectManagerName !== 'undefined') {
  // 执行一些操作，例如访问projectManagerName的属性或方法
}

在这个例子中，我们检查projectManagerName是否存在并且具有定义的值，然后再尝试使用它的属性或方法。这样可以避免出现“Cannot read properties of undefined”错误。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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