Question 137014 in React native Question posted in
The official React Native documentation can be found here.

Cannot connect to react native debugger

When I open my app in Expo and press "Open JS Debugger", a separate window opens and react native debugger still waiting for connect. When I close this window, JS Debugger automatically turns off. After that I do these steps again and it opens in a separate window again.
Here is this separate window

Interestingly, that in another project it opens in react native debugger. I doubt, that the problem is because i use TS instead of JS.

I have been trying to fix this problem by searching in google but nothing worked for me.

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Answers


  1. Chosen as BEST ANSWER
    0

    Just go to your app.json file add this to your expo objects "jsEngine": "jsc",


  2. 0

    Sanya21’s answer worked for me. Since SDK 48 Expo uses Hermes as the JavaScript engine, "jsEngine": "jsc" sets it back to JavaScriptCore and does the trick with the debugger. Hopefully it’s only a temporary workaround.

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