部署到Azure会导致致命错误

我正在尝试将我的demo IdentityServer4应用程序发布到Azure web app服务以进行测试。 包括应用程序加载在内,一切都运行良好。

但是,没有生成任何日志,因此我怀疑并检查了诊断结果,发现:

2018-02-28 08:54:21.626 +00:00 [Critical] Microsoft.AspNetCore.Hosting.Internal.WebHost: Hosting startup assembly exception
System.InvalidOperationException: Startup assembly Microsoft.AspNetCore.AzureKeyVault.HostingStartup failed to execute. See the inner exception for more details. ---> System.IO.FileNotFoundException: Could not load file or assembly 'Microsoft.AspNetCore.AzureKeyVault.HostingStartup, Culture=neutral, PublicKeyToken=null'. The system cannot find the file specified.
   at System.Reflection.RuntimeAssembly._nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, RuntimeAssembly locationHint, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks, IntPtr ptrLoadContextBinder)
   at System.Reflection.RuntimeAssembly.InternalLoadAssemblyName(AssemblyName assemblyRef, Evidence assemblySecurity, RuntimeAssembly reqAssembly, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, Boolean forIntrospection, IntPtr ptrLoadContextBinder)
   at System.Reflection.Assembly.Load(AssemblyName assemblyRef)
   at Microsoft.AspNetCore.Hosting.WebHostBuilder.BuildCommonServices(AggregateException& hostingStartupErrors)

不仅没有生成日志,我的一些操作也没有正常工作。在这种情况下,可以登录到identityserver4(我构建了一个自定义存储)。

有人能解释我在这里做错了什么吗?不知道从哪里开始寻找。