ContentProvider Error

[abdellah711]

Hello
I am trying to create a content provider to get info from the database and display it in a listview but when I used the provider nothing diplayed in the list and I got this error in the logcat :
2019-02-02 14:06:38.195 1294-1331/com.example.android.pet E/ActivityThread: Failed to find provider info for com.example.android.pets

Here is the manifest:
`

<application
    android:allowBackup="true"
    android:icon="@mipmap/ic_launcher"
    android:label="@string/app_name"
    android:roundIcon="@mipmap/ic_launcher_round"
    android:supportsRtl="true"
    android:theme="@style/AppTheme">
    <activity
        android:name=".MainActivity"
        android:label="@string/app_name"
        android:theme="@style/AppTheme">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
    <activity android:name=".EditorActivity">
        <meta-data
            android:name="android.support.PARENT_ACTIVITY"
            android:value=".MainActivity" />
    </activity>

    <provider
        android:name=".data.PetProvider"
        android:authorities="com.example.android.pet"
        android:enabled="true"
        android:exported="false"></provider>
</application>

`

and here is the query method in the provider:

private PetDbHelper petDbHelper; public static final String LOG_TAG = PetProvider.class.getSimpleName(); private static final int PETS = 100; private static final int PET_ID = 101; private static final UriMatcher sUriMatcher = new UriMatcher(UriMatcher.NO_MATCH); static { sUriMatcher.addURI(PetContract.CONTENT_AUTHORITY, PetContract.PATH_PETS, PETS); sUriMatcher.addURI(PetContract.CONTENT_AUTHORITY, PetContract.PATH_PETS + "/#", PET_ID); } @Override public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) { SQLiteDatabase database = petDbHelper.getReadableDatabase(); Cursor cursor; int match = sUriMatcher.match(uri); switch (match) { case PETS: cursor = database.query(PetContract.PetEntry.TABLE_NAME, projection, selection, selectionArgs, null, null, sortOrder); break; case PET_ID: selection = PetContract.PetEntry._ID + "=?"; selectionArgs = new String[] { String.valueOf(ContentUris.parseId(uri)) }; cursor = database.query(PetContract.PetEntry.TABLE_NAME, projection, selection, selectionArgs, null, null, sortOrder); break; default: throw new IllegalArgumentException("Cannot query unknown URI " + uri); } return cursor; }

Please help me , and thanks