Eu assisti alguns tutoriais e quero executar um aplicativo no emulador Android, mas não funcionou. Ele mostrou esse erro.
skr@skr:~/Desktop/reactNative/example_02/code/tutorialproject$ sudo react-native run-android
Scanning folders for symlinks in /home/skr/Desktop/reactNative/example_02/code/tutorialproject/node_modules (6ms)
Starting JS server...
Building and installing the app on the device (cd android && ./gradlew installDebug)...
FAILURE: Build failed with an exception.
* What went wrong:
A problem occurred configuring project ':app'.
SDK location not found. Define location with sdk.dir in the local.properties file or with an ANDROID_HOME environment variable.
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.
BUILD FAILED
Total time: 10.206 secs
Could not install the app on the device, read the error above for details.
Make sure you have an Android emulator running or a device connected and have
set up your Android development environment:
https://facebook.github.io/react-native/docs/getting-started.html