Perché ASP.NET vNext 'dnu build' non funziona su OSX

Question

DNVM e DNX installati su OSX come indicato tramite https://github.com/aspnet/Home.

ho usato generator-aspnet per creare un'applicazione console con un file sorgente, Program.cs:

using System; 

namespace HelloWorldConsole 
{ 
    public class Program 
    { 
     public static void Main(string[] args) 
     { 
      Console.WriteLine("Hello World"); 
      Console.ReadLine(); 
     } 
    } 
} 

e un package.json:

{ 
    "version": "1.0.0-*", 
    "dependencies": {}, 
    "commands": { 
     "run": "run" 
    }, 
    "frameworks": { 
     "dnx451": {}, 
     "dnxcore50": { 
      "dependencies": { 
       "System.Console": "4.0.0-beta-*" 
      } 
     } 
    } 
} 

Quando eseguo usando dnu . run, funziona come previsto e stampa "Hello World!".

Tuttavia quando provo a generare assemblee da eseguendo dnu build ottengo il seguente errore:

System.IO.EndOfStreamException: Failed to read past end of stream.
at System.IO.BinaryReader.ReadChar() [0x00000] in :0 at Microsoft.CodeAnalysis.CvtResFile.ReadStringOrID (System.IO.BinaryReader fhIn) [0x00000] in :0 at Microsoft.CodeAnalysis.CvtResFile.ReadResFile (System.IO.Stream stream) [0x00000] in :0 at Microsoft.CodeAnalysis.Compilation.MakeWin32ResourceList (System.IO.Stream win32Resources, Microsoft.CodeAnalysis.DiagnosticBag diagnostics) [0x00000] in :0 at Microsoft.CodeAnalysis.CSharp.CSharpCompilation.SetupWin32Resources (Microsoft.CodeAnalysis.CSharp.Emit.PEModuleBuilder moduleBeingBuilt, System.IO.Stream win32Resources, Microsoft.CodeAnalysis.DiagnosticBag diagnostics) [0x00000] in :0 at Microsoft.CodeAnalysis.CSharp.CSharpCompilation.CompileImpl (Microsoft.CodeAnalysis.Emit.CommonPEModuleBuilder moduleBuilder, System.IO.Stream win32Resources, System.IO.Stream xmlDocStream, Boolean generateDebugInfo, Microsoft.CodeAnalysis.DiagnosticBag diagnostics, System.Predicate 1 filterOpt, CancellationToken cancellationToken) [0x00000] in <filename unknown>:0 at Microsoft.CodeAnalysis.Compilation.Compile (Microsoft.CodeAnalysis.Emit.CommonPEModuleBuilder moduleBuilder, System.IO.Stream win32Resources, System.IO.Stream xmlDocStream, Boolean generateDebugInfo, Microsoft.CodeAnalysis.DiagnosticBag diagnostics, System.Predicate 1 filterOpt, CancellationToken cancellationToken) [0x00000] in :0 at Microsoft.CodeAnalysis.Compilation.Emit (Microsoft.CodeAnalysis.EmitStreamProvider peStreamProvider, Microsoft.CodeAnalysis.EmitStreamProvider pdbStreamProvider, Microsoft.CodeAnalysis.EmitStreamProvider xmlDocumentationStreamProvider, Microsoft.CodeAnalysis.EmitStreamProvider win32ResourcesStreamProvider, IEnumerable 1 manifestResources, Microsoft.CodeAnalysis.Emit.EmitOptions options, Microsoft.CodeAnalysis.CodeGen.CompilationTestData testData, System.Func 1 getHostDiagnostics, CancellationToken cancellationToken) [0x00000] in :0 at Microsoft.CodeAnalysis.Compilation.Emit (System.IO.Stream peStream, System.IO.Stream pdbStream, System.IO.Stream xmlDocumentationStream, System.IO.Stream win32Resources, IEnumerable 1 manifestResources, Microsoft.CodeAnalysis.Emit.EmitOptions options, Microsoft.CodeAnalysis.CodeGen.CompilationTestData testData, System.Func 1 getHostDiagnostics, CancellationToken cancellationToken) [0x00000] in :0 at Microsoft.CodeAnalysis.Compilation.Emit (System.IO.Stream peStream, System.IO.Stream pdbStream, System.IO.Stream xmlDocumentationStream, System.IO.Stream win32Resources, IEnumerable 1 manifestResources, Microsoft.CodeAnalysis.Emit.EmitOptions options, CancellationToken cancellationToken) [0x00000] in <filename unknown>:0 at Microsoft.Framework.Runtime.Roslyn.RoslynProjectReference.EmitAssembly (System.String outputPath) [0x00000] in <filename unknown>:0 at Microsoft.Framework.PackageManager.ProjectBuilder.Build (System.String name, System.String outputPath) [0x00000] in <filename unknown>:0
at Microsoft.Framework.PackageManager.BuildContext.Build (System.Collections.Generic.List 1 diagnostics) [0x00000] in :0 at Microsoft.Framework.PackageManager.BuildManager.Build () [0x00000] in :0 at Microsoft.Framework.PackageManager.Program+<>c__DisplayClass3_4.b__8 () [0x00000] in :0 at Microsoft.Framework.Runtime.Common.CommandLine.CommandLineApplication.Execute (System.String[] args) [0x00000] in :0 at Microsoft.Framework.PackageManager.Program.Main (System.String[] args) [0x00000] in :0 at (wrapper managed-to-native) System.Reflection.MonoMethod:InternalInvoke (System.Reflection.MonoMethod,object,object[],System.Exception&) at System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00000] in :0

Tutte le idee perché dnx. funziona, ma dnu build no? Le librerie core sembrano essere referenziate e caricate, quindi la corsa funziona. Cosa manca con il comando dnu build?

Answer 1

Quello che ho fatto è questo:

1. clonare il repository mono, compilarlo ed installarlo seguendo le indicazioni qui http://www.mono-project.com/docs/compiling-mono/ (assicurarsi di seguire le istruzioni per la compilazione da git source)
2. brew tap aspnet/dnx
3. birra aggiornamento
4. birra installare dnvm --without-mono

Dopo aver fatto questo sono stato in grado di eseguire DNU costruire con successo.

Answer 2

Si tratta di un bug noto Mono: https://bugzilla.xamarin.com/show_bug.cgi?id=29499

discussione è qui: https://github.com/aspnet/Home/issues/498

Answer 3

Il problema sembra essere brew indica una versione di mono che non sembra funzionare bene con l'ultima build di aspnet/dnx. Ecco un modo per farlo puntare a una versione praticabile.

1. nano /usr/local/Library/Formula/mono.rb

2. cambiato la linea 4 e 5 per

   url "http://download.mono-project.com/sources/mono/mono-4.0.1.44.tar.bz2" sha256 "eaf5bd9d19818cb89483b3c9cae2ee3569643fd621560da036f6a49f6b3e3a6f"

3. birra aggiornare mono

4. Dovresti essere in grado di eseguire correttamente dnu build sul progetto

   • origine dnvm.sh
   • cd ProjectDir
   • DNU ripristino
   • DNU costruire
   • export MONO_MANAGED_WATCHER = false (per mono bug, vedi link sotto)
   • dnx. gheppio
   • aperta http://localhost:5001

su mono bug - Running first ASP.NET 5 application using VSCode, DNX and kestrel results in IOException

Se avete problemi con birra, utilizzare brew medico

Grazie alla salerth https://github.com/aspnet/Home/issues/498