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Update build-run instructions in docs #4148

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merged 3 commits into from
Jun 12, 2020
Merged

Update build-run instructions in docs #4148

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docs/build-run: Add troubleshooting entry for Metro not running.
agrawal-d Jun 10, 2020
a4c838b
docs/build-run: Sort new troubleshooting entry to right spot.
gnprice Jun 12, 2020
a1db664
docs/build-run: Make small edits to new troubleshooting entry.
gnprice Jun 12, 2020
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17 changes: 17 additions & 0 deletions docs/howto/build-run.md
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Expand Up @@ -149,6 +149,7 @@ Apart from the steps mentioned below, you may find the

[React Native troubleshooting docs]: https://reactnative.dev/docs/troubleshooting


### `yarn install` failure, at `fsevents`

When running `yarn install` on initial setup, if you see an error like
Expand Down Expand Up @@ -420,6 +421,22 @@ sudo sysctl -p
```


### Debug app crashes with "Unable to load script" at startup

After running `react-native run-android` or `react-native run-ios`, if
you see an error like this on the device:

> Unable to load script. Make sure you're either running a Metro
> server (run 'react-native start') or that your bundle
> 'index.android.bundle' is packaged correctly for release.

then this means you are not running the Metro bundler.

Starting from React Native 0.60, you need to launch the Metro bundler server
separately, using `react-native start`. Once the server starts up, run
`react-native run-android` again, and the app should not crash.


### Red error banner about method `-[RCTAppState getCurrentAppState:error:]`

This should only happen when building old versions of the app, from
Expand Down