Please provide the following:
I am trying to connect expo with my phone via USB debugging (enabled), but here is the error, i have tried everything , no any progress, please help!!!
Hello Adam, i have a big problem , please help me!
Hi. I’m not sure if this will fix it, but maybe try killing expo start and then deleting the .expo directory before running expo start -c
I’m also running into this similar issue.
After I run expo start and click on Run on Android device/emulator I get this error:
Couldn't start project on Android: could not connect to TCP port 5562: Connection refused
adb devices gives me:
List of devices attached
emulator-5554 device
emulator-5562 offline
running telnet 127.0.0.1 5562 returns:
Trying 127.0.0.1...
telnet: connect to address 127.0.0.1: Connection refused
telnet: Unable to connect to remote host
I have tried restarting the adb server, and also turning off my firewall, but I get the same result. Wondering if it has to do with emulator-5562 showing as offline. I have tried removing all virtual devices from AVD Manager and re-adding, and have noticed that that emulator-5562 still persisted through the purge.
I also tried deleting .expo and running expo start -c, but same result.
Any ideas on what’s going on and how to address this?
I’m running:
Expo CLI 3.28.5
Android Studio 4.1.1
macOS 10.15.7
Android Emulator: Pixel 4 API 30
in your terminal press shift+a and try selecting the other emulator. also, you can try rebooting oyur computer as maybe one of the emulators is in a bad state. also possibly related Prevent Android emulator from starting? - Stack Overflow
@notbrent That link was super helpful. Thank you!
The solution (from link):
$ adb devices -l
List of devices attached
emulator-5562 offline transport_id:1
$ lsof | grep 5563
NTKDaemon 389 tim 19u IPv4 0x8d889cdf67e44dd9 0t0 TCP localhost:5563 (LISTEN)
NTKDaemon 389 tim 26u IPv4 0x8d889cdf75b8f3d9 0t0 TCP localhost:5563->localhost:49306 (ESTABLISHED)
adb 1074 tim 7u IPv4 0x8d889cdf75b8d759 0t0 TCP localhost:49306->localhost:5563 (ESTABLISHED)
$ kill -9 389
$ adb devices -l
List of devices attached
And the expo server logs, after doing above:
Downloading the Expo client app [================================================================] 100% 0.0s
Installing Expo client on device
Opening exp://xx.xx.xxx.xx:19000 on Pixel_4_API_30
In case this helps anyone, the following would be slightly more reliable (and faster) than lsof | grep 5563:
lsof -i :5563 -n -P
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