I am using ZXing for QrCode scanning. It's throw following error how to solve it?
please Help me. Thanks in advance.
Error 15 The type 'System.Threading.Tasks.TaskStatus' exists in both 'c:\Backup\ZXing.Net.Mobile-master\samples\WindowsPhone\WindowsPhone.Sample\System.Threading.Tasks.WP71.dll' and 'c:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\WindowsPhone\v8.0\mscorlib.dll' C:\samples\ContexualContacts\ContexualContacts\MainPage.xaml.cs 53 37 ContexualContacts