Tunnel URL not found, falled back to LAN URL

For these past 1-2 weeks, I cannot seem to run the expo client on the tunnel. The output when I run

> expo start --tunnel
Output:

Tunnel URL not found (it might not be ready yet), falling back to LAN URL.
Tunnel URL not found (it might not be ready yet), falling back to LAN URL.
Tunnel URL not found (it might not be ready yet), falling back to LAN URL.
Tunnel URL not found (it might not be ready yet), falling back to LAN URL.

Things I have tried:

  1. Using different networks: University campus wifi, the hostel wifi, home wifi and my 4G hotspot.
  2. Logging into expo client before running expo start

Please I need help urgently, as I’m using expo for my school’s project. Thank you!

Expo CLI 3.15.4 environment info (if necessary):
System:
OS: Windows 10 10.0.18362
Binaries:
Node: 12.9.1 - C:\Program Files\nodejs\node.EXE
Yarn: 1.17.3 - C:\Program Files (x86)\Yarn\bin\yarn.CMD
npm: 6.13.4 - C:\Program Files\nodejs\npm.CMD
IDEs:
Android Studio: Version 3.5.0.0 AI-191.8026.42.35.6010548
npmPackages:
expo: ^35.0.0 => 35.0.1
react: 16.8.3 => 16.8.3
react-native: https://github.com/expo/react-native/archive/sdk-35.0.0.tar.gz => 0.59.8
react-navigation: ^4.2.2 => 4.2.2

1 Like

I’ve had this issue after I grabbed the lastest expo-cli, 3.15.5. I believe there’s a problem with the latest release and reverted back to
expo-cli 3.11.9
node 12.14.1

Try nvm install v12.14.1, it installed the version of expo-cli listed above in one command. I have see a very instances where the tunnel still doesn’t come up. Ctrl-C to the instance of your bundler and bring it back up with expo start should do the trick.

4 Likes

Can confirm reverting to expo-cli@3.11.9 works. Tried all the versions after it, and no dice. I’m on node v13.11.0 on WSL2/Ubuntu 18.04.4.

I have the same problem here, everything was working perfectly until today.

An other problem, when I scan the QR code with an iPhone, I get this problem : “no data available for this QR code”

I created new terminal window and ran the command expo publish in the same directory. Then I restarted with expo start and everything works fine.

1 Like

Got the same issue with expo-cli@3.17.11

I reverted back my node and expo cli to
expo-cli 3.11.9
node 12.14.1
but still I am getting the same error.

Starting project at /Users/mshikher/Documents/reactNative/GitHub/checkOnce

Expo DevTools is running at http://localhost:19002

Starting Metro Bundler on port 19001.

Tunnel URL not found, falled back to LAN URL.

Tunnel URL not found, falled back to LAN URL.

Tunnel URL not found, falled back to LAN URL.

Your native app is running at exp092374a8475942de845719c6d43d81c5://10.127.102.188:19000

Logs for your project will appear below. Press Ctrl+C to exit.

Tunnel URL not found, falled back to LAN URL.

Tunnel URL not found, falled back to LAN URL.

Whenever I run command expo start or expo start --tunnel. It shows the following error:
Tunnel URL not found (it might not be ready yet), falling back to LAN URL

Solution: I terminate the process using ‘ctrl c’ and run again . Sometimes it works and sometimes it doesn’t . It is kinda frustating. Due to this productivity decreases as it consumes enough time to terminate adn run again and again until it works

Use “expo start --tunnel” to work, it works for me

I’ve tried a few different things to get this to work. I’m not an expert at network communications either but I can try to point out what hasn’t worked for me.

  • Closing VS Code and running “expo start”
  • Restarting the expo cli with VS Code closed
  • Running “expo start --tunnel”
  • Checking the app.json file discussed here . There was nothing in the app.json that resembled this json object.
  • Waiting 30 minutes + for the tunnel to start. (It never does, just keeps saying it’s failing)

I’ve been using this for a few days so I’m definitely not an expert but it looks like I have about a 1/10 chance of it coming online. Really wish they’d get this fixed so I can test.

Make sure to check the version of expo-cli you have running. Depending on how you install it, it be listed globably and you might need to remove those versions of expo-cli before you get can the version you want going.

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