关于asp.net：将beta5升级到beta6时出错

Error when upgrading beta5 to beta6

我按照此处显示的说明从ASP.NET 5 beta5升级到beta6：如何将ASP.NET 5(vnext)从Beta5升级到Beta6

我现在收到一个非常奇怪的意外应用程序错误，什么原因可能导致此错误以及如何解决？

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Unexpected application failure. Status code '-2146233079'.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Exception: Unexpected application failure. Status code '-2146233079'.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:

[Exception: Unexpected application failure. Status code '-2146233079'.]
System.Web.HttpRuntime.HostingInit(HostingEnvironmentFlags hostingFlags, PolicyLevel policyLevel, Exception appDomainCreationException) +303

[HttpException (0x80004005): Unexpected application failure. Status code '-2146233079'.]
System.Web.HttpRuntime.FirstRequestInit(HttpContext context) +9940016
System.Web.HttpRuntime.EnsureFirstRequestInit(HttpContext context) +101
System.Web.HttpRuntime.ProcessRequestNotificationPrivate(IIS7WorkerRequest wr, HttpContext context) +261

这是我的dnvm列表：

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Active Version Runtime Architecture Location Alias
------ ------- ------- ------------ -------- -----
1.0.0-beta4 clr x64 C:\\Users\
lang_000\\.dnx\
untimes
1.0.0-beta4 clr x86 C:\\Users\
lang_000\\.dnx\
untimes
1.0.0-beta4 coreclr x64 C:\\Users\
lang_000\\.dnx\
untimes
1.0.0-beta4 coreclr x86 C:\\Users\
lang_000\\.dnx\
untimes
1.0.0-beta5 clr x86 C:\\Users\
lang_000\\.dnx\
untimes
1.0.0-beta5 coreclr x64 C:\\Users\
lang_000\\.dnx\
untimes
1.0.0-beta5 coreclr x86 C:\\Users\
lang_000\\.dnx\
untimes
* 1.0.0-beta6 coreclr x86 C:\\Users\
lang_000\\.dnx\
untimes default
1.0.0-beta6-12254 clr x86 C:\\Users\
lang_000\\.dnx\
untimes
1.0.0-beta6-12254 coreclr x86 C:\\Users\
lang_000\\.dnx\
untimes
1.0.0-beta7-12264 clr x86 C:\\Users\
lang_000\\.dnx\
untimes