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via GitHub by SeananXiang
, 1 year ago
machine and has USB debugging enabled - run 'adb devices' to see a list of connected devices If you're on a physical device connected to the same machine, run 'adb reverse tcp:8081 tcp:8081' to forward requests from your device If your device is on the same Wi-Fi network, set 'Debug server host & port for device' in 'Dev settings' to y
via Stack Overflow by Richard Le Mesurier
, 11 months ago
java.util.concurrent.ExecutionException: java.lang.RuntimeException: Could not connect to development server.
java.lang.RuntimeException: java.util.concurrent.ExecutionException: java.lang.RuntimeException: Could not connect to development server.
Try the following to fix the issue:
Ensure that the packager server is running
Ensure that your device/emulator is connected to your machine and has USB debugging enabled - run 'adb devices' to see a list of connected devices
If you're on a physical device connected to the same machine, run 'adb reverse tcp:8081 tcp:8081' to forward requests from your device
If your device is on the same Wi-Fi network, set 'Debug server host & port for device' in 'Dev settings' to y	at com.facebook.react.ReactInstanceManagerImpl.createReactContext(ReactInstanceManagerImpl.java:912)	at com.facebook.react.ReactInstanceManagerImpl.access$700(ReactInstanceManagerImpl.java:99)	at com.facebook.react.ReactInstanceManagerImpl$ReactContextInitAsyncTask.doInBackground(ReactInstanceManagerImpl.java:196)	at com.facebook.react.ReactInstanceManagerImpl$ReactContextInitAsyncTask.doInBackground(ReactInstanceManagerImpl.java:179)	at android.os.AsyncTask$2.call(AsyncTask.java:295)	at java.util.concurrent.FutureTask.run(FutureTask.java:237)	at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:234)	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)	at java.lang.Thread.run(Thread.java:818)