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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. ,
    Expert tip

    MANAGE_USERS has a protection level of signature|system, so your application must be signed with the platform key. Take a look on this https://goo.gl/nXsTvH for more information about it.

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An error occurred while executing doInBackground()
java.lang.SecurityException: Permission Denial: opening provider com.android.providers.contacts.SemcContactsProvider2 from ProcessRecord{c94f2c4 8874:com.test.myapp/u0a60} (pid=8874, uid=10060) requires android.permission.READ_CONTACTS or android.permission.WRITE_CONTACTS	at android.os.Parcel.readException(Parcel.java:1627)	at android.os.Parcel.readException(Parcel.java:1579)	at android.app.ActivityManagerProxy.getContentProvider(ActivityManagerNative.java:3565)	at android.app.ActivityThread.acquireProvider(ActivityThread.java:4878)	at android.app.ContextImpl$ApplicationContentResolver.acquireUnstableProvider(ContextImpl.java:2004)	at android.content.ContentResolver.acquireUnstableProvider(ContentResolver.java:1477)	at android.content.ContentResolver.query(ContentResolver.java:481)	at android.content.CursorLoader.loadInBackground(CursorLoader.java:64)	at android.content.CursorLoader.loadInBackground(CursorLoader.java:42)	at android.content.AsyncTaskLoader.onLoadInBackground(AsyncTaskLoader.java:312)	at android.content.AsyncTaskLoader$LoadTask.doInBackground(AsyncTaskLoader.java:69)	at android.content.AsyncTaskLoader$LoadTask.doInBackground(AsyncTaskLoader.java:57)	at android.os.AsyncTask$2.call(AsyncTask.java:295)	at java.util.concurrent.FutureTask.run(FutureTask.java:237)	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)	at java.lang.Thread.run(Thread.java:818)