VSS到TFS错误：检索COM类工厂错误：8007007e

Question

我正在尝试使用VSS升级工具运行增量迁移。我正在通过命令提示符进行迁移。

过去，我已成功地将所有项目和历史记录迁移到TFS，并且还检查了增量迁移。但是，现在我已经第三次这样做了，我得到了一个错误。

据我所知，没有任何改变。我如何进行调试的任何一般性提示都将有所帮助。

运行vssupgrade migrate settings.xml命令时收到的错误。

ERROR: Retrieving the COM class factory for component with CLSID {783CD4E4-9D54-11CF-B8EE-00608CC9A71F} failed due to the following error: 8007007e The specified module could not be found. (Exception from HRESULT: 0x8007007E)

查看由分析工具创建的日志文件，错误看起来像这样：

[VSS,             Error,     3, 2019/03/20 11:23:56.676] Exception: System.IO.FileNotFoundException
    Message: Retrieving the COM class factory for component with CLSID {783CD4E4-9D54-11CF-B8EE-00608CC9A71F} failed due to the following error: 8007007e The specified module could not be found. (Exception from HRESULT: 0x8007007E).
    Stack Trace:    at Microsoft.TeamFoundation.Admin.VssMigration.VssConverter.OpenVss(String sourceRepository, String passwd)
   at Microsoft.TeamFoundation.Admin.VssMigration.VssConverter.Initialize(ExecutionMode executionMode, MigrationSession migrationSession)
   at Microsoft.TeamFoundation.Admin.VssMigration.Api.MigrationSession.PrepareForProcessing(ExecutionMode executionMode, Boolean requireUserMapFile)
   at Microsoft.TeamFoundation.Admin.VssMigration.Api.MigrationSession.Migrate()
   at Microsoft.TeamFoundation.Admin.VssMigration.CommandLine.VSSUpgradeCommand.MainThread()
    Help Link: 
    BaseExceptionMessage: Retrieving the COM class factory for component with CLSID {783CD4E4-9D54-11CF-B8EE-00608CC9A71F} failed due to the following error: 8007007e The specified module could not be found. (Exception from HRESULT: 0x8007007E).

Answer 1

COM interop fails when the convertor runs under x64，可能有用的技巧是从强制的32位命令提示符启动转换，您可以通过以下方式开始：

c:\windows\SysWOW64\cmd.exe

这应该为您提供强制的32位上下文：

另一种替代方法是随时更改corflags to force the convertor to x86：

corflags /32bit+ vssupgrade.exe

Answer 2

我的解决方案是为Team Foundation Server修复Visual Source Safe Upgrade Tool。我从Microsoft's website

重新下载了应用程序链接

然后运行并修复该应用程序。那解决了我的问题。