No device logs in Expo Dev Tool

Expo CLI 4.1.3 environment info:
OS: Windows 10 10.0.16299
Node: 14.15.4 - C:\Program Files\nodejs\node.EXE
Yarn: 1.22.5 - C:\Program Files (x86)\Yarn\bin\yarn.CMD
npm: 6.14.5 - C:\Program Files\nodejs\npm.CMD
Android Studio: Version AI-201.8743.12.41.7042882
expo: ~40.0.0 => 40.0.0
react: 16.13.1 => 16.13.1
react-dom: 16.13.1 => 16.13.1
react-native: => 0.63.2
react-native-web: ~0.13.12 => 0.13.18
Expo Workflow: managed

Hello why no device log in my expo dev tool?

Hello expo team can you help me?? it’s difficult to code without log…


That’s weird. Do you see any logs in the terminal window where you ran expo start?

I don’t know, what is the problem?
But It has already fixed.
I delete yarn.lock file, then I run yarn install.
It runs perfectly.
I suspect this is because I upgraded to the latest version of the yarn. then the device log does not appear.

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