c# 做Excel转PDF的时候application.Workbooks.Open 打开失败

此处将我引用的代码贴出来：

---

private bool ExceltoPDF(string sourcePath, string targetPath, Excel.XlFixedFormatType targetType)
        {
            bool result;
            object missing = Type.Missing;
            Excel.ApplicationClass application = null;
            Excel.Workbook workBook = null;
            try
            {
                application = new Excel.ApplicationClass();
                //application = Excel.XlCreator.CreateObject("Excel.Application") 
                object target = targetPath;
                object type = targetType;
                application.DisplayAlerts = false;
                application.Visible = false;
                Excel.Worksheet wSheet = null;
                object oMissiong = System.Reflection.Missing.Value;
                workBook = application.Workbooks.Open(sourcePath, oMissiong, oMissiong, oMissiong, oMissiong, oMissiong,
                        oMissiong, oMissiong, oMissiong, oMissiong, oMissiong, oMissiong, oMissiong, oMissiong, oMissiong);
                workBook.ExportAsFixedFormat(targetType, target, Excel.XlFixedFormatQuality.xlQualityStandard, true, false, missing, missing, missing, missing);
                result = true;
            }
            catch
            {
                result = false;
            }
            finally
            {
                if (workBook != null)
                {
                    workBook.Close(true, missing, missing);
                    workBook = null;
                }
                if (application != null)
                {
                    application.Quit();
                    application = null;
                }
            }
            GC.Collect();
            GC.WaitForPendingFinalizers();
            GC.Collect();
            GC.WaitForPendingFinalizers();
            return result;
        }

其中对文件打开时，报错：“异常来自HRESULT:0X80010105(RPC_SERVERFAULT)”，我们这个原因是因为我们Excel的加载项的问题！我们可以做如下操作（我计算机装了福昕阅读器）：

我就查看到了我的文件中勾选了FoxitReader PDF Creator COM Add-in 这个选项，我将此选项祛除后，点击确定，再重新运行我的算法，得以成功运行！每个人计算机的加载项不一定相同，你可以查看你的计算机然后把里面pdf的加载项去掉，就OK了。