Barcode Scanner not working

[helmi iskandar]

Hello guys..

I'm creating new project to scan a bar code. I've selecting button,label and bar code scanner on my screen. on the block display, please refer to above picture. when I create the apk. and install in my phone and click "SCAN" button it appear "Error 1501: Your device does not have a scanning application installed" can someone assist me.FYI, my phone equip with QR and Bar code scanner by gamma play and I'm using Vivo Y66 model. 

Thank you. 

Helmi

[Taifun]

install a barcodescanner app or set the property UseExternalScanner to false

Taifun

[helmi iskandar]

TQ Taifun

I'm unclick on the  property UseExternalScanner and it work