Uncaught (in promise) ReferenceError: uname is not defined

这个错误信息"Uncaught (in promise) ReferenceError: uname is not defined"表示在一个 promise 中发生了一个未捕获的错误，错误类型是引用错误，uname 未定义。这通常是因为在代码中使用了一个变量或函数，但它没有在之前的代码中声明或定义。

为了解决这个问题，你需要检查代码中的变量或函数名是否正确拼写，并确保它们在使用之前已经声明或定义。此外，你还可以检查一下变量或函数名是否在正确的作用域内。

如果你需要进一步的帮助，请提供出现错误的代码片段，以便更好地理解和解决问题。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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