当路径明显存在时获取 COM class factory Path not found 异常

Question

我正在尝试使用 Microsoft.Office.Interop.Excel 库将 csv 转换为 xlsx。这是我正在使用的功能

public static string ConvertToXlsx(string _sFilePath)
{
string _newFilePath = _sFilePath.Replace("csv", "xlsx");
                Application app = new Application();
                Workbook wb;
                wb = app.Workbooks.Open(_sFilePath, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing);
                if (File.Exists(_newFilePath))
                    return "";
                wb.SaveAs(_newFilePath, XlFileFormat.xlOpenXMLWorkbook, Type.Missing, Type.Missing, Type.Missing, Type.Missing, XlSaveAsAccessMode.xlExclusive, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing);
                wb.Close();
                app.Quit();
                return _newFilePath;
}

我在函数参数中获取路径的方法是使用 OpenFileDialog class

OpenFileDialogue openDialog = new OpenFileDialog();
DialogResult response = openDialog.ShowDialog();
if (response == DialogResult.Cancel)
      return;
string convertedFileName = convertToXlsx(openDialog.FileName);

错误抛出在 app.Workbooks.Open() 貌似当它试图访问 OpenFileDialog

提供的文件路径时

这是我收到的包含完整调用堆栈的错误

System.IO.DirectoryNotFoundException: Retrieving the COM class factory for component with CLSID {00024500-0000-0000-C000-000000000046} failed due to the following error: 80070003 The system cannot find the path specified. (Exception from HRESULT: 0x80070003).

   at System.Runtime.Remoting.RemotingServices.AllocateUninitializedObject(RuntimeType objectType)

   at System.Runtime.Remoting.Activation.ActivationServices.CreateInstance(RuntimeType serverType)

   at System.Runtime.Remoting.Activation.ActivationServices.IsCurrentContextOK(RuntimeType serverType, Object[] props, Boolean bNewObj)

   at System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean publicOnly, Boolean noCheck, Boolean& canBeCached, RuntimeMethodHandleInternal& ctor, Boolean& bNeedSecurityCheck)

   at System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean skipCheckThis, Boolean fillCache, StackCrawlMark& stackMark)

   at System.RuntimeType.CreateInstanceDefaultCtor(Boolean publicOnly, Boolean skipCheckThis, Boolean fillCache, StackCrawlMark& stackMark)

   at System.Activator.CreateInstance(Type type, Boolean nonPublic)

   at System.Activator.CreateInstance(Type type)

   at ConvertToXlsx(String _sFilePath)

有问题的文件路径直接来自文件资源管理器，因此它必须存在。路径为C:\temp\example.csv.

有趣的是，这甚至不会发生在所有用户身上。对于许多人来说，它完全按照预期工作，所以这里会发生什么？

Answer 1

尝试在系统上安装Excel (MS Office) 或修复它。看来问题不在于要打开的文件，而在于 Excel 本身。请记住，您必须在尝试自动化的系统上安装 Excel。

确保磁盘上存在这样的文件并且所有用户都可以访问。我注意到以下错误消息：

80070003 The system cannot find the path specified. (Exception from HRESULT: 0x80070003).

不清楚在对话框中选择了什么文件（路径）window。注意，您需要选择一个本地文件。 Excel 可能无法访问网络共享，在这种情况下，您需要将文件复制到本地，然后才使用传递本地文件路径的 Workbooks.Open 方法。

您可能还会发现以下类似主题很有帮助：

当路径明显存在时获取 COM class factory Path not found 异常

Getting a COM class factory Path not found exception when the path clearly exists

c#

excel

office-interop

excel-interop

excel-automation