Zipfile OpenRead引发C＃uwp应用程序中拒绝访问路径的异常？

Question

我几个月来一直在使用以下代码，没有任何问题，突然之间，它抛出了“拒绝访问路径”异常。我一直在清单中使用“ BroadFileSystemAccess”，并且正在使用文件选择器来选择作为StorageFile参数传递的文件。我还确保该应用程序启用了FileAccess。

怎么了？经过数小时的调试和搜索后无法解决...

   public async Task AddImageToPlaylist(StorageFile NewImage)
   {

                try {
                    using (ZipArchive archive = ZipFile.OpenRead(NewImage.Path))
                    {
                        foreach (ZipArchiveEntry member in archive.Entries)
                        {
                            NumSlides += 1;
                            AllFiles.Add(new imgitem { type = "zip", zipname = NewImage.Path, filepath = member.FullName, imgname = NewImage.Name, imgsize = (ulong)member.Length, imgdate = member.LastWriteTime, index = NumSlides, ImgRating = 0 });
                         }

                    }

                }
                catch (Exception)
                {
                    await Windows.ApplicationModel.Core.CoreApplication.MainView.CoreWindow.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () => { MessageBlock.Text = "Exception encountered loading ZIP file"; });
                }

      }