error while running app with basic implementation of Zxing

[Deleted user]

W/CameraBase: An error occurred while connecting to camera: 0

[Will Caine]

You need to specify that you need camera access in your AndroidManifest.xml file and might also need to request camera permission in your activity class.

###AndroidManifest.xml

    <application>
        ...
        <uses-feature android:name="android.hardware.camera" />
        <uses-permission android:name="android.permission.CAMERA" />
    </applciation>

###MainActivity.java

    protected void onCreate(Bundle savedIntanceState) {
        ...
        ActivityCompat.requestPermissions(this, new String[]{CAMERA}, REQUEST_CAMERA);
    }    

See this guide for a full example.

[stale]

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