React-native, no, bundle, URL, present

This error occurs as soon as it is running

React-native, no, bundle, URL, present
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What exactly is the problem,
, while the iOS emulator is running?:

NPM install

React-native run-ios

It turned out that the problem was still unsolved

Finally, the problem of agency is found

React-native, no, bundle, URL, present
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React-native, no, bundle, URL, present
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Set him up as a whole

React-native, no, bundle, URL, present
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You will find that he has downloaded the file again

OK, get it