entityMap|blocks|key|nje0|text|这主要是因为你的防火墙阻止了它。通过关闭防火墙进行验证|type|unstyled|depth|inlineStyleRanges|entityRanges|data|eb3ls^0|0^^$0|$]|1|@$2|3|4|5|6|7|8|D|9|@]|A|@]|B|$]]|$2|C|4|-4|6|7|8|E|9|@]|A|@]|B|$]]]]

This is mostly because your firewall is blocking it. Verify by shutting off the firewall

entityMap|0|type|LINK|mutability|MUTABLE|data|url|https://github.com/expo/expo/issues/283|blocks|key|3uqiq|text|Expo和react-devtools不能一起使用。因此，如果您使用的是react-devtools，则必须将其卸载。这对我很有效：|unstyled|depth|inlineStyleRanges|entityRanges|borka|npm卸载react-devtools+-g|7mlgh|但我注意到其他一些人也成功地使用了这个here。|offset|length|3rdpt|npm卸载react-devtools+--save-dev|1312u^0|0|0|J|4|0|0|0^^$0|$1|$2|3|4|5|6|$7|8]]]|9|@$A|B|C|D|2|E|F|R|G|@]|H|@]|6|$]]|$A|I|C|J|2|E|F|S|G|@]|H|@]|6|$]]|$A|K|C|L|2|E|F|T|G|@]|H|@$M|U|N|V|A|W]]|6|$]]|$A|O|C|P|2|E|F|X|G|@]|H|@]|6|$]]|$A|Q|C|-4|2|E|F|Y|G|@]|H|@]|6|$]]]]

Expo and react-devtools do not go together. So if you are using react-devtools, you must uninstall it. This worked for me:

npm uninstall react-devtools -g

But I noticed some other people were successful with this <a href="https://github.com/expo/expo/issues/283" rel="noreferrer">here</a>. 

npm uninstall react-devtools --save-dev

entityMap|0|type|LINK|mutability|MUTABLE|data|url|https://ngrok.com/download|blocks|key|d5ei|text|尝试在后台运行ngork.exe。|unstyled|depth|inlineStyleRanges|entityRanges|crqkf|你可以在ngork下载ngork|offset|length|ejqob|隧道使用ngork。我遇到了类似的问题，在后台运行ngork解决了这个问题。我不确定它是如何修复“启动隧道错误”的问题的。|fr98d|希望我能尽快找到它。|5k6hv^0|0|4|5|0|0|0|0^^$0|$1|$2|3|4|5|6|$7|8]]]|9|@$A|B|C|D|2|E|F|R|G|@]|H|@]|6|$]]|$A|I|C|J|2|E|F|S|G|@]|H|@$K|T|L|U|A|V]]|6|$]]|$A|M|C|N|2|E|F|W|G|@]|H|@]|6|$]]|$A|O|C|P|2|E|F|X|G|@]|H|@]|6|$]]|$A|Q|C|-4|2|E|F|Y|G|@]|H|@]|6|$]]]]

Try running the ngork.exe in the background. 

You can download ngork at <a href="https://ngrok.com/download" rel="nofollow noreferrer">ngork</a>

Tunnel uses ngork. I faced similar issue and running ngork at background solved me the issue. 
Am not sure how it fixed the 'Error starting tunnel' issue. 

Hope I fill find it soon.

entityMap|blocks|key|f0h86|text|我通过检查我的操作顺序解决了这个问题。我工作单位的其他人已经设法建立了这个项目，但由于某种原因，我遇到了这个错误。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|840n9|我正在使用VSCode调试器，并计算出在隧道成功之前，模拟器需要打开expo，并且在模拟器上打开expo中的项目。我试图在没有实际打开应用程序的情况下运行调试器。|dbc9t^0|0|0^^$0|$]|1|@$2|3|4|5|6|7|8|F|9|@]|A|@]|B|$]]|$2|C|4|D|6|7|8|G|9|@]|A|@]|B|$]]|$2|E|4|-4|6|7|8|H|9|@]|A|@]|B|$]]]]

I solved this by examining my order of operations.
Other people at my workplace had managed to set the project up but for some reason I ran into this error.

I was using VSCode debugger and figured out that the emulator needed expo to be open and the project to be open within expo on the simulator before tunnelling was successful. I was attempting to run the debugger without actually opening the app.

entityMap|blocks|key|c7rml|text|当你有一个不一致的互联网连接时，通常会发生这种情况。您可以尝试重新启动您的wifi/计算机和重新启动xde。如果这不起作用，您可以尝试使用不同的网络连接到互联网。最后一种办法是将您的设备连接到LAN并从那里运行强文本|type|unstyled|depth|inlineStyleRanges|entityRanges|data|a4cgu^0|0^^$0|$]|1|@$2|3|4|5|6|7|8|D|9|@]|A|@]|B|$]]|$2|C|4|-4|6|7|8|E|9|@]|A|@]|B|$]]]]

<h3>this usually happens when you have an inconsistent internet connection. you can try restarting your wifi/computer &amp; restarting xde. if that doesn’t work, you can try using a different network to connect to the internet. a last resort is connecting your device to the LAN and strong text running from there</h3>

entityMap|blocks|key|9dh3m|text|在我的例子中，当我点击隧道选项时，expo无法安装@expo/ngrok库(它在内部用来创建隧道)。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|afjkm|您可以通过使用npm全局安装库并使用expo+start重启expo+metro+bundler来解决此问题。|6vap5|npm+install+--global+@expo/ngrok|etbo8^0|P|B|0|I|A|0|0|W|0^^$0|$]|1|@$2|3|4|5|6|7|8|L|9|@$A|M|B|N|C|D]]|E|@]|F|$]]|$2|G|4|H|6|7|8|O|9|@$A|P|B|Q|C|D]]|E|@]|F|$]]|$2|I|4|J|6|7|8|R|9|@$A|S|B|T|C|D]]|E|@]|F|$]]|$2|K|4|-4|6|7|8|U|9|@]|E|@]|F|$]]]]

In my case, somehow expo was unable to install <code>@expo/ngrok</code> library (that it uses internally to create a tunnel) when I click on tunnel option.
You can solve the issue by installing the library globally using npm and restarting the expo metro bundler with <code>expo start</code>.
<code>npm install --global @expo/ngrok</code>

entityMap|blocks|key|86mut|text|如果您使用的是VPN，也会发生这种情况。把它关掉我的虚拟专用网对我很管用。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|8lmjc^0|0^^$0|$]|1|@$2|3|4|5|6|7|8|D|9|@]|A|@]|B|$]]|$2|C|4|-4|6|7|8|E|9|@]|A|@]|B|$]]]]

This can also happen if you are using a VPN. Turning it off my VPN worked for me.

I am connected to the same network my device and PC , how can we fix this error , 

After restarting it gives the same error with :

<pre><code>Switched to a LAN URL because the tunnel appears to be down. Only devices in the same network can access the app. You can restart the project to try reconnecting.
</code></pre>

on my device it says

<pre><code>Tunnel packager ....exp.not found
</code></pre>

I am running on windows btw;
Thanks

Expo : React Native, 'Error starting tunnel: Error: Starting tunnels timed out'

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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 我的设备和PC连接到相同的网络，我们如何修复此错误， 重新启动后，它显示相同的错误： Switched to a LAN URL because the tunnel appears to be down. Only devices in the same network can access the app. Yo...

问Expo : React Native，“启动隧道时出错:错误:启动隧道超时”
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问Expo : React Native，“启动隧道时出错:错误:启动隧道超时”EN