我的React应用为什么在http://localhost:3000/static/js/bundle.js上显示错误?

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英文:

Why is my React app displaying an error at http://localhost:3000/static/js/bundle.js

问题

我在启动我的React应用程序时收到以下消息:

ERROR [object Object] at handleError (http://localhost:3000/static/js/bundle.js:56279:58) at http://localhost:3000/static/js/bundle.js:56302:7

有人知道这是什么意思以及如何解决吗?如果忽略错误并继续前进,应用程序仍然可以正常工作。

提前感谢任何能够帮助解决此问题的人。

英文:

I am getting the following message when starting out my React app:

ERROR [object Object] at handleError (http://localhost:3000/static/js/bundle.js:56279:58) at http://localhost:3000/static/js/bundle.js:56302:7

Does anyone know what this means and how it can be resolved? If one disregards the error and proceeds onward, the app works just fine.

Thanks in advance to anyone that can help with this

答案1

得分: -1

你看到的错误消息,ERROR [object Object],是一个通用的错误消息,表明在你的React应用程序中发生了一个未处理的错误。错误消息本身并没有提供关于错误具体原因的详细信息。

为了诊断和解决这个问题,你可以按照以下步骤进行操作:

1. 打开你的浏览器的开发者控制台。在大多数浏览器中,你可以右键单击页面,选择“检查”或“查看元素”,然后导航到“控制台”选项卡。

2. 查找是否有其他错误消息或堆栈跟踪,它们可能会提供更详细的关于错误的信息。附加的错误消息可以帮助你了解出了什么问题以及问题在你的代码中的位置。

3. 如果找到了更具体的错误消息或堆栈跟踪,请尝试识别错误中提到的代码和行号。这可以帮助你精确定位问题在你的代码中的确切位置。

4. 查看报告的行号处的代码,并检查是否存在潜在问题,如语法错误、未定义的变量或不兼容的函数调用。

5. 确保你已经建立了错误处理机制,例如使用try...catch块或错误边界,以处理和正确处理React组件内的错误。

6. 如果错误仍然存在,而你无法确定原因,请考虑提供更多的上下文或与错误消息相关的代码片段。这可以帮助社区中的其他人更好地理解问题并提供帮助。

通过按照这些步骤并调查具体的错误消息和代码,你应该能够追踪到错误的原因并解决它。

英文:

The error message you're seeing, ERROR [object Object], is a generic error message that indicates an unhandled error occurred in your React app. The error message itself doesn't provide much information about the specific cause of the error.

To diagnose and resolve the issue, you can follow these steps:

1. Open your browser's developer console. In most browsers, you can right-click on the page, select "Inspect" or "Inspect Element," and then navigate to the "Console" tab.

2. Look for any other error messages or stack traces that might provide more detailed information about the error. The additional error messages can give you insights into what went wrong and where the issue occurred in your code.

3. If you find a more specific error message or stack trace, try to identify the code and line number mentioned in the error. This can help you pinpoint the exact location of the problem in your code.

4. Review the code at the reported line number and check for any potential issues such as syntax errors, undefined variables, or incompatible function calls.

5. Make sure you have error handling mechanisms in place, such as using try...catch blocks or error boundaries, to handle and properly handle errors within your React components.

6. If the error persists and you're unable to determine the cause, consider providing more context or sharing relevant code snippets with the error message. This can help others in the community to better understand the problem and provide assistance.

By following these steps and investigating the specific error message and code, you should be able to track down the cause of the error and resolve it.

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  • 本文由 发表于 2023年6月22日 04:58:31
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