NLog: UnauthorizedAccessException when trying to create a simple FileTarget on Android

Type (choose one):

• Bug

NLog version: 4.3.10

Platform: Xamarin Android (tested on device running Nougat, works on emulator running Marshmallow)

Current NLog config (xml or C#, if relevant)

NLog.Config.LoggingConfiguration config = new NLog.Config.LoggingConfiguration();
NLog.Targets.FileTarget f = new NLog.Targets.FileTarget("f");           

In case of a BUG:

• What is the current result?

System.UnauthorizedAccessException
Access to the path "/" is denied.
 at System.IO.Directory.GetFileSystemEntries (System.String path, System.String searchPattern, System.IO.FileAttributes mask, System.IO.FileAttributes attrs) [0x00050] in /Users/builder/data/lanes/3819/96c7ba6c/source/mono/mcs/class/corlib/System.IO/Directory.cs:496 
  at System.IO.Directory.GetFiles (System.String path, System.String searchPattern) [0x00000] in /Users/builder/data/lanes/3819/96c7ba6c/source/mono/mcs/class/corlib/System.IO/Directory.cs:296 
  at NLog.Config.ConfigurationItemFactory.BuildDefaultFactory () [0x00084] in <dbf750d0ee3b4193a151c4e9f00bd425>:0 
  at NLog.Config.ConfigurationItemFactory.get_Default () [0x00007] in <dbf750d0ee3b4193a151c4e9f00bd425>:0 
  at NLog.Layouts.Layout.FromString (System.String layoutText) [0x00000] in <dbf750d0ee3b4193a151c4e9f00bd425>:0 
  at NLog.Layouts.Layout.op_Implicit (System.String text) [0x00000] in <dbf750d0ee3b4193a151c4e9f00bd425>:0 
  at NLog.Targets.TargetWithLayout..ctor () [0x00006] in <dbf750d0ee3b4193a151c4e9f00bd425>:0 
  at NLog.Targets.TargetWithLayoutHeaderAndFooter..ctor () [0x00000] in <dbf750d0ee3b4193a151c4e9f00bd425>:0 
  at NLog.Targets.FileTarget..ctor () [0x00016] in <dbf750d0ee3b4193a151c4e9f00bd425>:0 
  at NLog.Targets.FileTarget..ctor (System.String name) [0x00000] in <dbf750d0ee3b4193a151c4e9f00bd425>:0 
  at Droid.MainActivity.ConfigureLogging () [0x00023] in 
/Droid/MainActivity.cs:143 
  at Droid.MainActivity.OnCreate (Android.OS.Bundle bundle) [0x00002] 
/Droid/MainActivity.cs:77 
  at Android.Support.V4.App.FragmentActivity.n_OnCreate_Landroid_os_Bundle_ (System.IntPtr jnienv, System.IntPtr native__this, System.IntPtr native_savedInstanceState) [0x00011] in <27c17fe440cf491ba8255bcefade6e02>:0 
  at (wrapper dynamic-method) System.Object:b5e891a4-6415-4583-b917-ff0357faa071 (intptr,intptr,intptr)

• What is the expected result?

Not an exception

• Did you checked the Internal log?

Not possible

• Please post full exception details (message, stacktrace, inner exceptions)

See above

• Are there any work arrounds? yes/no

No

• Is there a version in which it did worked?

No