Our app received some crash report:
W/ContextImpl( 2303): Unable to create files subdir /data/user/0/myappname/code_cache
E/FlutterLoader( 2303): Flutter initialization failed.
E/FlutterLoader(2303): java.util.concurrent.ExecutionException: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String java.io.File.getPath()' on a null object reference
E/FlutterLoader( 2303): at io.flutter.embedding.engine.loader.FlutterLoader.ensureInitializationComplete(FlutterLoader.java:193)
E/FlutterLoader( 2303): at io.flutter.view.FlutterMain.ensureInitializationComplete(FlutterMain.java:85)
...
E/FlutterLoader( 2303): at io.flutter.util.PathUtils.getCacheDirectory(PathUtils.java:21)
E/FlutterLoader( 2303): at io.flutter.embedding.engine.loader.FlutterLoader$1.call(FlutterLoader.java:164)
E/FlutterLoader( 2303): at io.flutter.embedding.engine.loader.FlutterLoader$1.call(FlutterLoader.java:140)
io.flutter.util.PathUtils.java
public static String getCacheDirectory(Context applicationContext) {
return VERSION.SDK_INT >= 21 ? applicationContext.getCodeCacheDir().getPath() : applicationContext.getCacheDir().getPath();
}NPE on Android 6.x and below, because Context.getCodeCacheDir() will return null.
http://androidxref.com/6.0.1_r10/xref/frameworks/base/core/java/android/app/ContextImpl.java#508
* The system will delete any files stored in this location both when your
* specific application is upgraded, and when the entire platform is
* upgraded.
getCodeCacheDir() {
//...some code
return createFilesDirLocked(mCodeCacheDir); // Return null **_if no space left on device._**
}All flutter versions have this problem.
Our app received some crash report:
io.flutter.util.PathUtils.java
NPE on Android 6.x and below, because Context.getCodeCacheDir() will return null.
http://androidxref.com/6.0.1_r10/xref/frameworks/base/core/java/android/app/ContextImpl.java#508
All flutter versions have this problem.