本文介绍了在Windows Phone App 8.1中创建WriteableBitmap?的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
在Windows Phone应用中创建二维码扫描.
iam creating qr code scan in windows phone app.
using (IRandomAccessStream fileStream = await file.OpenAsync(FileAccessMode.Read))
{
wrb = await Windows.UI.Xaml.Media.Imaging.BitmapFactory.New(1, 1).FromStream(fileStream);
}
在上面的代码中，"BitmapFactory"中出现错误.
in the above code I am getting error in "BitmapFactory".
它显示以下错误:
推荐答案
您缺少WritableBitmapEx.WinRT.dll.它位于Sample Projects bin-> Debug Folder中.如果您的参考资料中已经列出了它，请将其删除并再次添加.这样就可以了！
You are missing the WritableBitmapEx.WinRT.dll. It is located in the Sample Projects bin -> Debug Folder. If it is already listed in your references delete it and add it again. Then it will work!
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