Unable to create file - EACCESS Permission Denied

Question

I'm writing some text into a file, yet before even writing the text, I am unable to create the file itself.

File newxmlfile = new File( Environment.getExternalStorageDirectory() + "new.xml"); XmlSerializer serializer = Xml.newSerializer(); try { newxmlfile.createNewFile(); } catch (Exception e) { Log.e("IOException", "exception in createNewFile() method", e); }

Permission is set fine.

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

SDCard is writable and mounted also.

However, I kept getting

07-11 11:23:01.134: E/IOException(5363): exception in createNewFile() method 07-11 11:23:01.134: E/IOException(5363): java.io.IOException: open failed: EACCES (Permission denied) 07-11 11:23:01.134: E/IOException(5363): at java.io.File.createNewFile(File.java:948) 07-11 11:23:01.134: E/IOException(5363): at com.app.example.MainActivity$LongOperation.doInBackground(MainActivity.java:71) 07-11 11:23:01.134: E/IOException(5363): at com.app.example.MainActivity$LongOperation.doInBackground(MainActivity.java:1) 07-11 11:23:01.134: E/IOException(5363): at android.os.AsyncTask$2.call(AsyncTask.java:287) 07-11 11:23:01.134: E/IOException(5363): at java.util.concurrent.FutureTask.run(FutureTask.java:234) 07-11 11:23:01.134: E/IOException(5363): at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230) 07-11 11:23:01.134: E/IOException(5363): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080) 07-11 11:23:01.134: E/IOException(5363): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573) 07-11 11:23:01.134: E/IOException(5363): at java.lang.Thread.run(Thread.java:856) 07-11 11:23:01.134: E/IOException(5363): Caused by: libcore.io.ErrnoException: open failed: EACCES (Permission denied) 07-11 11:23:01.134: E/IOException(5363): at libcore.io.Posix.open(Native Method) 07-11 11:23:01.134: E/IOException(5363): at libcore.io.BlockGuardOs.open(BlockGuardOs.java:110) 07-11 11:23:01.134: E/IOException(5363): at java.io.File.createNewFile(File.java:941) 07-11 11:23:01.134: E/IOException(5363): ... 8 more 07-11 11:23:01.134: E/FileNotFoundException(5363): can't create FileOutputStream

Instead of this Environment.getExternalStorageDirectory() + "\new.xml") try this Environment.getExternalStorageDirectory() +File.Seperator+ "new.xml") — Raghunandan
– Raghunandan, Commented Jul 11, 2013 at 3:45

Gilles 'SO- stop being evil' · Accepted Answer · 2013-12-26 14:35:04Z

Your code is correct, you just need to add an extra / (or File.separator) before the file name as follows:

File newxmlfile = new File( Environment.getExternalStorageDirectory() + "/new.xml"); XmlSerializer serializer = Xml.newSerializer(); try { newxmlfile.createNewFile(); } catch (Exception e) { Log.e("IOException", "exception in createNewFile() method", e); }

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