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Good Day, I am pretty new to react native and I ran into an issue, my metro bundler starts and gets stuck at loading dependency graph with ('...'), not moving forward or backwards

I have tried using yarn start, changing the ports although my port 8081 is free.

Any other suggestions would be appreciated.

EDIT: any other alternatives to metro bundler? Screenshot:Its just stuck here

Screenshot II: Emulator

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  • Add a screenshot of your bundler, as well as your simulator/device at the point where you are getting stuck. More information is likely needed to answer your question. Commented Aug 12, 2019 at 16:53
  • Share your work to reproduce this. Commented Aug 12, 2019 at 18:03
  • it's a fresh project Commented Aug 13, 2019 at 9:03

3 Answers 3

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Did you run react-native run-ios or react-native run-android as well?

because react-native start only runs metro and usually when dependency graph is done it stays there hanging until you connect a simulator/device but it is working as expected.

You can try with react-native --reset-cache to clean up metro after some bad start, but in any case this only starts metro bundler. To get device running use the methods above

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I did run react-native run-android, app loads with a white screen and just stays like that. Let me try react-native --reset-cache
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Turns out it was my node version, was using v12, I downgraded to v10. Thanks for your suggestions.

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For the latest version of RN 0.62, there could be two things that could be wrong.

  • Make sure your node version is < 12.15 since there is a memory leak issue and you would have few issues running the bundler.
  • If you are in MacOs Catalina , just go to the Security & Privacy -> files & folders in the system preferences and change the permissions for watchman.

The simplest way to debug this issue is running the bundler in sudo

sudo react-native start

And if you have permission issue with watchman then you should see bunch of errors in your console.

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