我正在使用 ZXing 进行二维码扫描。出现以下错误如何解决?
请帮我。提前致谢。
错误 15 类型“System.Threading.Tasks.TaskStatus”存在于“c:\Backup\ZXing.Net.Mobile-master\samples\WindowsPhone\WindowsPhone.Sample\System.Threading.Tasks.WP71.dll”和“ c:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\WindowsPhone\v8.0\mscorlib.dll' C:\samples\ContexualContacts\ContexualContacts\MainPage.xaml.cs 53 37 ContexualContacts