Exception open failed EACCES Permission denied on Android

Question

I am getting     open failed  EACCES  Permission denied    on the line OutputStream myOutput   new FileOutputStream outFileName    I checked the root  and I tried android permission WRITE EXTERNAL STORAGE   How can I fix this problem   try       InputStream myInput       myInput   getAssets   open  XXX db            Path to the just created empty db     String outFileName     data data XX databases                  XXX db           Open the empty db as the output stream     OutputStream myOutput   new FileOutputStream outFileName           Transfer bytes from the inputfile to the outputfile     byte   buffer   new byte 1024       int length      while   length   myInput read buffer    gt  0            myOutput write buffer  0  length                 Close the streams     myOutput flush        myOutput close        myInput close        buffer   null      outFileName   null    catch  IOException e1           TODO Auto-generated catch block     e1 printStackTrace

User · Answer

I would expect everything below  data to belong to  internal storage   You should  however  be able to write to  sdcard

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When your application belongs to the system application  it can t access the SD card

User · Answer

after adding permission solved my problem   lt uses-permission android name  android permission INTERNET   gt

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In addition to all the answers  make sure you re not using your phone as a USB storage   I was having the same problem on HTC Sensation on USB storage mode enabled  I can still debug run the app  but I can t save to external storage

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I had the same problem and none of suggestions helped  But I found an interesting reason for that  on a physical device  Galaxy Tab   When USB storage is on  external storage read and write permissions don t have any effect  Just turn off USB storage  and with the correct permissions  you ll have the problem solved

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I had the same problem on Samsung Galaxy Note 3  running CM 12 1  The issue for me was that i had   lt uses-permission android name  android permission WRITE EXTERNAL STORAGE      android maxSdkVersion  18   gt    and had to use it to take and store user photos  When I tried to load those same photos in ImageLoader i got the  Permission denied  error  The solution was to explicitly add   lt uses-permission android name  android permission READ EXTERNAL STORAGE   gt    since the above permission only limits the write permission up to API version 18  and with it the read permission

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Change a permission property in your  system etc permission platform xml and group need to mentioned as like below    lt uses-permission android name  android permission WRITE EXTERNAL STORAGE  gt       lt group android gid  sdcard rw    gt       lt group android gid  media rw    gt       lt  uses-permission gt

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Add gradle dependencies  implementation  com karumi dexter 4 2 0    Add below code in your main activity   import com karumi dexter Dexter  import com karumi dexter MultiplePermissionsReport  import com karumi dexter PermissionToken  import com karumi dexter listener PermissionRequest  import com karumi dexter listener multi MultiplePermissionsListener       Override protected void onCreate Bundle savedInstanceState        super onCreate savedInstanceState       setContentView R layout activity splash        new Handler   postDelayed new Runnable                  Override             public void run                       checkMermission                             4000              private void checkMermission            Dexter withActivity this                   withPermissions                          android Manifest permission READ EXTERNAL STORAGE                          android Manifest permission WRITE EXTERNAL STORAGE                          android Manifest permission ACCESS NETWORK STATE                          Manifest permission INTERNET                   withListener new MultiplePermissionsListener                  Override             public void onPermissionsChecked MultiplePermissionsReport report                    if  report isAnyPermissionPermanentlyDenied                         checkMermission                      else if  report areAllPermissionsGranted                            copy some things                   else                       checkMermission                                                  Override             public void onPermissionRationaleShouldBeShown List lt PermissionRequest gt  permissions  PermissionToken token                    token continuePermissionRequest                             check

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Building on answer by user462990   To be notified when the user responds to the permission request dialog  use this   code in kotlin   override fun onRequestPermissionsResult requestCode  Int                                          permissions  Array lt String gt                                           grantResults  IntArray        when  requestCode            MY PERMISSIONS REQUEST READ CONTACTS - gt                   If request is cancelled  the result arrays are empty              if   grantResults isNotEmpty    amp  amp  grantResults 0     PackageManager PERMISSION GRANTED                         permission was granted  yay  Do the                    contacts-related task you need to do                 else                       permission denied  boo  Disable the                    functionality that depends on this permission                             return                       Add other  when  lines to check for other            permissions this app might request           else - gt                       Ignore all other requests

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In addition to all answers  if the clients are using Android 6 0  Android added new permission model for  Marshmallow    Trick  If you are targeting version 22 or below  your application will request all permissions at install time just as it would on any device running an OS below Marshmallow  If  you are trying on the emulator then from android 6 0 onwards you need to explicitly go the settings- apps-  YOURAPP  -  permissions and change the permission if you have given any

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It turned out  it was a stupid mistake since I had my phone still connected to the desktop PC and didn t realize this   So I had to turn off the USB connection and everything worked fine

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Google has a new feature on Android Q   filtered view for external storage  A quick fix for that is to add this code in the AndroidManifest xml file    lt manifest      gt       lt  -- This attribute is  false  by default on apps targeting Android Q  -- gt       lt application android requestLegacyExternalStorage  true       gt                lt  application gt   lt  manifest gt    You can read more about it  here  https   developer android com training data-storage compatibility

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For anyone coming here from search results and are targeting Android 10  Android 10  API 29  changes some permissions related to storage  I fixed the issue when I replaced my previous instances of Environment getExternalStorageDirectory    which is deprecated with API 29  with context getExternalFilesDir null   Note that context getExternalFilesDir type  can return null if the storage location isn t available  so be sure to check that whenever you re checking if you have external permissions  Read more here

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Environment getExternalStoragePublicDirectory      When using this deprecated method from Android 29 onwards you will receive the same error   java io FileNotFoundException  open failed  EACCES  Permission denied   Resolution here   getExternalStoragePublicDirectory deprecated in Android Q

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I m experiencing the same  What I found is that if you go to Settings -  Application Manager -  Your App -  Permissions -  Enable Storage  it solves the issue

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For API 23  you need to request the read write permissions even if they are already in your manifest      Storage Permissions private static final int REQUEST EXTERNAL STORAGE   1  private static String   PERMISSIONS STORAGE             Manifest permission READ EXTERNAL STORAGE          Manifest permission WRITE EXTERNAL STORAGE            Checks if the app has permission to write to device storage       If the app does not has permission then the user will be prompted to grant permissions        param activity     public static void verifyStoragePermissions Activity activity           Check if we have write permission     int permission   ActivityCompat checkSelfPermission activity  Manifest permission WRITE EXTERNAL STORAGE        if  permission    PackageManager PERMISSION GRANTED               We don t have permission so prompt the user         ActivityCompat requestPermissions                  activity                  PERMISSIONS STORAGE                  REQUEST EXTERNAL STORAGE                      AndroidManifest xml   lt uses-permission android name  android permission READ EXTERNAL STORAGE    gt   lt uses-permission android name  android permission WRITE EXTERNAL STORAGE    gt    For official documentation about requesting permissions for API 23   check https   developer android com training permissions requesting html

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In my case the error was appearing on the line         target createNewFile      since I could not create a new file on the sd card so I had to use the DocumentFile approach         documentFile createFile mime  target getName       For the above question the problem may be solved with this approach       fos context getContentResolver   openOutputStream documentFile getUri       See this thread too           How to use the new SD card access API presented for Android 5 0  Lollipop

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I am creating a folder under  data  in my init rc  mucking around with the aosp on Nexus 7  and had exactly this problem   It turned out that giving the folder rw  666  permission was not sufficient and it had to be rwx  777  then it all worked

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I have observed this once when running the application inside the emulator  In the emulator settings  you need to specify the size of external storage   SD Card   properly  By default  the  external storage  field is empty  and that probably means there is no such device and EACCES is thrown even if permissions are granted in the manifest

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Strangely after putting a slash  quot   quot  before my newFile my problem was solved  I changed this  File myFile  new File Environment getExternalStorageDirectory      quot newFile quot     to this  File myFile  new File Environment getExternalStorageDirectory      quot  newFile quot     UPDATE  as mentioned in the comments  the right way to do this is  File myFile  new File Environment getExternalStorageDirectory     quot newFile quot

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I had the same problem  API    23    The solution https   stackoverflow com a 13569364 1729501 worked for me  but it was not practical to disconnect app for debugging   my solution was to install proper adb device driver on Windows  The google USB driver did not work for my device   STEP 1  Download adb drivers for your device brand   STEP 2  Go to device manager -  other devices -  look for entries with word  adb  -  select Update driver -  give location in step 1

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In my case I was using a file picker library which returned the path to external storage but it started from  root   And even with the WRITE EXTERNAL STORAGE permission granted at runtime I still got error EACCES  Permission denied    So use Environment getExternalStorageDirectory   to get the correct path to external storage   Example   Cannot write   root storage emulated 0 newfile txt Can write   storage emulated 0 newfile txt  boolean externalStorageWritable   isExternalStorageWritable    File file   new File filePath   boolean canWrite   file canWrite    boolean isFile   file isFile    long usableSpace   file getUsableSpace     Log d TAG   externalStorageWritable      externalStorageWritable   Log d TAG   filePath      filePath   Log d TAG   canWrite      canWrite   Log d TAG   isFile      isFile   Log d TAG   usableSpace      usableSpace       Checks if external storage is available for read and write    public boolean isExternalStorageWritable         String state   Environment getExternalStorageState        if  Environment MEDIA MOUNTED equals state             return true            return false      Output 1   externalStorageWritable  true filePath   root storage emulated 0 newfile txt isFile  false usableSpace  0   Output 2   externalStorageWritable  true filePath   storage emulated 0 newfile txt isFile  true usableSpace  1331007488

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Add android requestLegacyExternalStorage  true  to the Android Manifest It s worked  with Android 10  Q  at SDK 29  or After migrating Android X     lt application     android name   MyApplication      android allowBackup  true      android hardwareAccelerated  true      android icon        android label        android largeHeap  true      android supportsRtl        android theme        android requestLegacyExternalStorage  true  gt

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I had the same error when was trying to write an image in DCIM camera folder on Galaxy S5  android 6 0 1  and I figured out that only this folder is restricted  I simply could write into DCIM any folder but not in camera  This should be brand based restriction customization

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Add Permission in manifest    lt uses-permission android name  android permission READ EXTERNAL STORAGE    gt   lt uses-permission android name  android permission READ INTERNAL STORAGE    gt   lt uses-permission android name  android permission WRITE EXTERNAL STORAGE   gt

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keep in mind that even if you set all the correct permissions in the manifest   The only place 3rd party apps are allowed to write on your external card are  their own directories    i e   sdcard Android data   trying to write to anywhere else  you will get exception      EACCES  Permission denied

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I had the same problem    The  lt uses-permission was in the wrong place  This is right     lt manifest gt           lt uses-permission android name  android permission WRITE EXTERNAL STORAGE   gt                       lt application gt                               lt activity gt                                    lt  activity gt           lt  application gt       lt  manifest gt     The uses-permission tag needs to be outside the application tag

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Maybe the answer is this   on the API    23 devices  if you install app  the app is not system app   you should check the storage permission in  Setting - applications   there is permission list for every app  you should check it on  try

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Be aware that the solution   lt application         android requestLegacyExternalStorage  quot true quot       gt   Is temporary  sooner or later your app should be migrated to use Scoped Storage  In Android 10  you can use the suggested solution to bypass the system restrictions  but in Android 11  R  it is mandatory to use scoped storage  and your app might break if you kept using the old logic  This video might be a good help

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My issue was with  TargetApi 23   which is needed if your minSdkVersion is bellow 23   So  I have request permission with the following snippet  protected boolean shouldAskPermissions         return  Build VERSION SDK INT  gt  Build VERSION CODES LOLLIPOP MR1       TargetApi 23  protected void askPermissions         String   permissions                  android permission READ EXTERNAL STORAGE                android permission WRITE EXTERNAL STORAGE             int requestCode   200      requestPermissions permissions  requestCode       Override protected void onCreate Bundle savedInstanceState        super onCreate savedInstanceState              if  shouldAskPermissions              askPermissions

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Solution for Android Q    lt application         android requestLegacyExternalStorage  true       gt

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The post 6 0 enforcement of storage permissions can be bypassed if you have a rooted device via these adb commands   root msm8996     getenforce getenforce Enforcing root msm8996     setenforce 0 setenforce 0 root msm8996     getenforce getenforce Permissive

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To store a file in a directory which is foreign to the app s directory is restricted above API 29   So to generate a new file or to create a new file use your application directory like this  -  So the correct approach is  -  val file   File appContext applicationInfo dataDir   File separator    anyRandomFileName      You can write any data into this generated file    The above file is accessible and would not throw any exception because it resides in your own developed app s directory   The other option is  android requestLegacyExternalStorage  true  in manifest application tag as suggested by Uriel but its not a permanent solution

[android] Exception 'open failed: EACCES (Permission denied)' on Android

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