Document.close() 需要永远/在 C# 中不起作用，如何解决？

Question

我有这个代码：

// Writing a byte[] to temporary folder as a word file
File.WriteAllBytes(Path.Combine(Path.GetTempPath(), formLanguage.FileName), formLanguage.FormFile);

var app = new Microsoft.Office.Interop.Word.Application();
Document doc = app.Documents.Open(Path.Combine(Path.GetTempPath(), formLanguage.FileName));

// what my main goal is to count the pages
var pageCount = doc.ComputeStatistics(
   Microsoft.Office.Interop.Word.WdStatistic.wdStatisticPages);

formLanguage.NumberOfPages = pageCount;
object saveOption = WdSaveOptions.wdDoNotSaveChanges;
object originalFormat = WdOriginalFormat.wdOriginalDocumentFormat;
object routeDocument = false;

// here is where the debugger just doesn't continue.
doc.Close(saveOption, originalFormat, routeDocument);
app.Quit();

当doc.Close被称为我的 C# 桌面应用程序时，它只是卡住了，并且需要永远。 有谁知道我的错误是什么，或者甚至可以关闭这样的 Word 文档？