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  1. ,
    Expert tip

    Android SDK 23 introduced a new way to handle permissions, so as a temporary workaround you can set it to build for SDK below 23. As a permanent solution you have to ask user during runtime for permissions with checkSelfPermission() or requestPermissions()

  2. ,
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    You need the permission android.permission.READ_EXTERNAL_STORAGE. Write <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" /> on the Android Manifest

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java.lang.SecurityException: Permission Denial: opening provider
android.support.v4.content.FileProvider from ProcessRecord{42ae5ff
13963:com.google.android.packageinstaller/u0a17} (pid=13963,
uid=10017) that is not exported from uid 10122	at android.os.Parcel.readException(Parcel.java:1683)	at android.os.Parcel.readException(Parcel.java:1636)	at android.app.ActivityManagerProxy.getContentProvider(ActivityManagerNative.java:4169)	at android.app.ActivityThread.acquireProvider(ActivityThread.java:5434)	at android.app.ContextImpl$ApplicationContentResolver.acquireUnstableProvider(ContextImpl.java:2267)	at android.content.ContentResolver.acquireUnstableProvider(ContentResolver.java:1515)	at android.content.ContentResolver.openTypedAssetFileDescriptor(ContentResolver.java:1129)	at android.content.ContentResolver.openAssetFileDescriptor(ContentResolver.java:982)	at android.content.ContentResolver.openInputStream(ContentResolver.java:702)	at com.android.packageinstaller.PackageInstallerActivity$StagingAsyncTask.doInBackground(PackageInstallerActivity.java:732)	at com.android.packageinstaller.PackageInstallerActivity$StagingAsyncTask.doInBackground(PackageInstallerActivity.java:723)	at android.os.AsyncTask$2.call(AsyncTask.java:304)	at java.util.concurrent.FutureTask.run(FutureTask.java:237)	at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:243)	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1133)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:607)	at java.lang.Thread.run(Thread.java:761)