어떻게 하면 읽지 않은 개수를 받아올수 있을까요?

<uses-permission android:name="android.permission.GET_ACCOUNTS" />

        <uses-permission android:name="com.google.android.googleapps.permission.GOOGLE_AUTH" />

        <uses-permission android:name="com.google.android.providers.gmail.permission.READ_GMAIL" />

    <uses-permission android:name="com.google.android.gm.permission.WRITE_GMAIL"/>

        <uses-permission android:name="com.google.android.gm.permission.READ_GMAIL" />

        <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/> 

    ContentResolver contentResolver = getContentResolver();

    Cursor conversations = contentResolver.query(Uri.parse("content://gmail-ls/conversations/" + "leehack@gmail.com"), null, null, null, null);

    conversations.moveToFirst();

    for (int a = 0; a < conversations.getCount(); a++) {

    String subject = conversations.getString(8);

    conversations.moveToNext();

    }

지속적인 퍼미션 에러가 나고있습니다.

도움 부탁드립니다.