Merge pull request #60 from dtuite/master

Explain a known issue in APK 27 and greater

Author: TSMMark

README.md

@@ -180,6 +180,19 @@ Ensure `compileSdkVersion` and `targetSdkVersion` are 25.
 
 Done!
 
+## Known issues
+
+Android APK 27 and above require notifications to provide their own `NotificationChannel`. `react-native-background-upload` does not yet meet this requirement and thus [will cause crashes in Android 8.1 and above](https://github.com/Vydia/react-native-background-upload/issues/59#issuecomment-362476703). This issue can be avoided by electing not to use native notifications.
+
+```js
+const options = {
+  // ...
+  notification: {
+    enabled: false,
+  },
+};
+```
+
 
 ## Gratitude