Publicação do .NET Core no IIS - Erro HTTP 502.3 - Gateway incorreto - O aplicativo CGI especificado encontrou um erro e o servidor encerrou o processo

Estou tentando publicar no IIS um site do .NET Core ASP.NET que atualizei do RC2 para o RTM.

Como verificação de integridade, consegui publicar com êxito o modelo / exemplo "Aplicativo ASP.NET Core Web Application (.NET Framework)" do Visual Studio 2015.

Mas, por alguma razão, ao publicar o aplicativo atualizado da RTM, estou recebendoErro HTTP 502.3 - Gateway incorreto O aplicativo CGI especificado encontrou um erro e o servidor encerrou o processo.

O site funciona com o IIS Express no Visual Studio.

Como posso depurar isso? Alguém tem alguma ideia?

web.config

<?xml version="1.0" encoding="utf-8"?>
<configuration>

<system.webServer>
    <handlers>
      <add name="aspNetCore" path="*" verb="*" modules="AspNetCoreModule" resourceType="Unspecified"/>
    </handlers>
    <aspNetCore processPath=".\MyApp.exe" arguments="%LAUNCHER_ARGS%" stdoutLogEnabled="false" stdoutLogFile=".\logs\stdout" />
  </system.webServer>
</configuration>

project.json

{
  "buildOptions": {
  "emitEntryPoint": true,
  "preserveCompilationContext": true,
  "warningsAsErrors": true
},
"dependencies": {
  "Microsoft.AspNetCore.Diagnostics.Elm": "0.1.0",
  "Microsoft.AspNetCore.Authentication.Cookies": "1.0.0",
  "Microsoft.AspNetCore.Authorization": "1.0.0",
  "Microsoft.AspNetCore.Diagnostics": "1.0.0",
  "Microsoft.AspNetCore.Hosting": "1.0.0",
  "Microsoft.AspNetCore.Hosting.Abstractions": "1.0.0",
  "Microsoft.AspNetCore.Http.Extensions": "1.0.0",
  "Microsoft.AspNetCore.Localization": "1.0.0",
  "Microsoft.AspNetCore.Mvc": "1.0.0",
  "Microsoft.AspNetCore.Routing": "1.0.0",
  "Microsoft.AspNetCore.Server.IISIntegration": "1.0.0",
  "Microsoft.AspNetCore.Server.Kestrel": "1.0.0",
  "Microsoft.AspNetCore.Session": "1.0.0",
  "Microsoft.AspNetCore.StaticFiles": "1.0.0",
  "Microsoft.Extensions.Caching.SqlServer": "1.0.0",
  "Microsoft.Extensions.Logging.Console": "1.0.0",
  "Microsoft.Extensions.Logging.Debug": "1.0.0",
  "Microsoft.VisualStudio.Web.BrowserLink.Loader": "14.0.0",

  "Microsoft.AspNetCore.Razor.Tools": {
    "version": "1.0.0-preview2-final",
    "type": "build"
  },

  "Microsoft.Extensions.Configuration.EnvironmentVariables": "1.0.0",
  "Microsoft.Extensions.Configuration.Json": "1.0.0",
  "Microsoft.Extensions.Logging": "1.0.0",
  "Microsoft.Extensions.Options.ConfigurationExtensions": "1.0.0"
},

"frameworks": {
   "net461": {}
 },

"tools": {
  "BundlerMinifier.Core": "2.0.238",
  "Microsoft.AspNetCore.Razor.Tools": "1.0.0-preview2-final",
  "Microsoft.AspNetCore.Server.IISIntegration.Tools": "1.0.0-preview2-final"
},

"scripts": {
  "prepublish": [ "bower install", "dotnet bundle" ],
  "postpublish": "dotnet publish-iis --publish-folder %publish:OutputPath% --framework %publish:FullTargetFramework%"
},

"publishOptions": {
  "include": [
    "wwwroot",
    "web.config",
    "appsettings.json",
    "**/*.cshtml",
    "Config/*.json"
    ]
  ]
 }
}

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