ISSUE
Modifying my native module (Android code) I would see the following error when trying to compile my app
Execution failed for task ':react-native-[package-name]:compileReleaseJavaWithJavac'.
Unable to find source java class […] because it does not belong to any of the source dirs: […]
FIX
Clean gradle within the app Android folder
cd [Project-Folder]/android
./gradlew clean
cd ..
react-native run-android
ISSUE
A problem occurred configuring project ':app'.
> The SDK Build Tools revision (23.0.3) is too low for project ':app'. Minimum required is 25.0.0
FIX
Ensure buildToolsVersion is at a matching API level to the compileSdkVersion in build.gradle of your app
ISSUE
error: bundling failed: Error: Unable to resolve module `[YOUR_MODULE]`: Module `[YOUR_MODULE]` does not exist in the Haste module map
FIX
The fix is listed in the error as follows
This might be related to https://github.com/facebook/react-native/issues/4968
To resolve try the following:
1. Clear watchman watches: `watchman watch-del-all`.
2. Delete the `node_modules` folder: `rm -rf node_modules && npm install`.
3. Reset Metro Bundler cache: `rm -rf /tmp/metro-bundler-cache-*` or `npm start -- --reset-cache`.
4. Remove haste cache: `rm -rf /tmp/haste-map-react-native-packager-*`.
ISSUE
error: bundling failed: Error: ENOENT: no such file or directory, uv_cwd [...]
FIX
Metro Bundler, the JS bundler for React Native uses port 8081. Sometimes a process won't release it so you can reboot or killall
ISSUE
Execution failed for task ':app:transformClassesWithDexForDebug'.
> com.android.build.api.transform.TransformException: com.android.ide.common.process.ProcessException: java.util.concurrent.ExecutionException: com.android.dex.DexException: Multiple dex files define Lcom/reactlibrary/BuildConfig;
FIX
The package name in the Android Manifest of each of your modules must be different.
ISSUE After compiling the app, the device shows a red screen with the following
Native module [MODULE_NAME] tried to override [MODULE_NAME] for module name [MODULE_NAME]. If this was your intention, set canOverrideExistingModule=true
FIX
Make sure the module/package in question is not listed twice in the getPackages() method within your MainApplication.java