Problems with permission ACCESS_COARSE_LOCATION android studio

I'm building a project that uses the GsmCellLocation class. I can know this information from the TelephonyManager class.

For this, I need permissions where the problem arises. An ACCESS_COARSE_LOCATION permission

When arriving at the line below, I have exception return, SecurityException.

TelephonyManager telephonyManager = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
GsmCellLocation cellLocation = (GsmCellLocation) telephonyManager.getCellLocation();

  

Caused by: java.lang.SecurityException: getCellLocation: Neither user   10609 nor current process has   android.permission.ACCESS_COARSE_LOCATION.

There are no issues with the order of my permissions on the manifest.

<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />


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

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
</application>

Someone has already gone through this ... I have no idea what I'm missing .. = T