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Editorial Team
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Asked: 2026-05-16T21:56:50+00:00

I am trying to download a file from the net and write it to

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I am trying to download a file from the net and write it to the SD card. I have the WRITE_EXTERNAL_STORAGE permission enabled. The code fails here:

OutputStream output = new FileOutputStream(filePath);

09-15 19:40:31.630: WARN/System.err(7933): java.io.FileNotFoundException: /sdcard/artoo/Customerv08.apk
09-15 19:40:31.630: WARN/System.err(7933):     at org.apache.harmony.luni.platform.OSFileSystem.open(OSFileSystem.java:231)
09-15 19:40:31.630: WARN/System.err(7933):     at java.io.FileOutputStream.<init>(FileOutputStream.java:96)
09-15 19:40:31.630: WARN/System.err(7933):     at java.io.FileOutputStream.<init>(FileOutputStream.java:169)
09-15 19:40:31.630: WARN/System.err(7933):     at java.io.FileOutputStream.<init>(FileOutputStream.java:147)
09-15 19:40:31.640: WARN/System.err(7933):     at com.artoo.settings.InstallerActivity$ProgressDialogAsyncTask.doInBackground(InstallerActivity.java:148)
09-15 19:40:31.640: WARN/System.err(7933):     at com.artoo.settings.InstallerActivity$ProgressDialogAsyncTask.doInBackground(InstallerActivity.java:1)
09-15 19:40:31.640: WARN/System.err(7933):     at android.os.AsyncTask$2.call(AsyncTask.java:185)
09-15 19:40:31.640: WARN/System.err(7933):     at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:256)
09-15 19:40:31.640: WARN/System.err(7933):     at java.util.concurrent.FutureTask.run(FutureTask.java:122)
09-15 19:40:31.640: WARN/System.err(7933):     at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:648)
09-15 19:40:31.640: WARN/System.err(7933):     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:673)
09-15 19:40:31.651: WARN/System.err(7933):     at java.lang.Thread.run(Thread.java:1060)
09-15 19:40:31.670: WARN/InputManagerService(53): Window already focused, ignoring focus gain of: com.android.internal.view.IInputMethodClient$Stub$Proxy@43868480

I am trying to write the file and it doesn’t exists from before. Any ideas on how to do this?

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1 Answer

  1. Editorial Team

    You are getting that error because the file specified cannot be opened or does not exist. It’s simple as that.

    I always create a file before and use a bufferedstream to write to it, ex :

    File file = new File(path, name);
file.createNewFile();
BufferedOutputStream out = new BufferedOutputStream(new FileOutputStream(file), BUFFER);
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