AspNetCore Error

dotnet run error.txt

CoreCLR path = 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\coreclr.dll', CoreCLR dir = 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3'
Loaded library from C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\coreclr.dll
Property TRUSTED_PLATFORM_ASSEMBLIES = C:\TFSAPP\VSTS\CoreTest2017-3\CoreTest2017-3\bin\Debug\netcoreapp1.0\CoreTest2017-3.dll;C:\Users\{userName}\.nuget\packages\microsoft.applicationinsights.aspnetcore\2.0.0\lib\netstandard1.6\Microsoft.ApplicationInsights.AspNetCore.dll;C:\Users\{userName}\.nuget\packages\microsoft.applicationinsights\2.2.0\lib\netstandard1.5\Microsoft.ApplicationInsights.dll;C:\Users\{userName}\.nuget\packages\microsoft.aspnetcore.diagnostics.abstractions\1.1.0\lib\netstandard1.0\Microsoft.AspNetCore.Diagnostics.Abstractions.dll;C:\Users\{userName}\.nuget\packages\microsoft.aspnetcore.diagnostics\1.1.0\lib\netstandard1.3\Microsoft.AspNetCore.Diagnostics.dll;C:\Users\{userName}\.nuget\packages\microsoft.aspnetcore.hosting.abstractions\1.1.0\lib\netstandard1.3\Microsoft.AspNetCore.Hosting.Abstractions.dll;C:\Users\{userName}\.nuget\packages\microsoft.aspnetcore.hosting.server.abstractions\1.1.0\lib\netstandard1.3\Microsoft.AspNetCore.Hosting.Server.Abstractions.dll;C:\Users\{userName}\.nuget\packages\microsoft.aspnetcore.hosting\1.1.0\lib\netstandard1.5\Microsoft.AspNetCore.Hosting.dll;C:\Users\{userName}\.nuget\packages\microsoft.aspnetcore.http.abstractions\1.1.0\lib\netstandard1.3\Microsoft.AspNetCore.Http.Abstractions.dll;C:\Users\{userName}\.nuget\packages\microsoft.aspnetcore.http.extensions\1.1.0\lib\netstandard1.3\Microsoft.AspNetCore.Http.Extensions.dll;C:\Users\{userName}\.nuget\packages\microsoft.aspnetcore.http.features\1.1.0\lib\netstandard1.3\Microsoft.AspNetCore.Http.Features.dll;C:\Users\{userName}\.nuget\packages\microsoft.aspnetcore.http\1.1.0\lib\netstandard1.3\Microsoft.AspNetCore.Http.dll;C:\Users\{userName}\.nuget\packages\microsoft.aspnetcore.httpoverrides\1.1.0\lib\netstandard1.3\Microsoft.AspNetCore.HttpOverrides.dll;C:\Users\{userName}\.nuget\packages\microsoft.aspnetcore.routing.abstractions\1.1.0\lib\netstandard1.3\Microsoft.AspNetCore.Routing.Abstractions.dll;C:\Users\{userName}\.nuget\packages\microsoft.aspnetcore.routing\1.1.0\lib\netstandard1.3\Microsoft.AspNetCore.Routing.dll;C:\Users\{userName}\.nuget\packages\microsoft.aspnetcore.server.iisintegration\1.1.0\lib\netstandard1.3\Microsoft.AspNetCore.Server.IISIntegration.dll;C:\Users\{userName}\.nuget\packages\microsoft.aspnetcore.server.kestrel\1.1.0\lib\netstandard1.3\Microsoft.AspNetCore.Server.Kestrel.dll;C:\Users\{userName}\.nuget\packages\microsoft.aspnetcore.webutilities\1.1.0\lib\netstandard1.3\Microsoft.AspNetCore.WebUtilities.dll;C:\Users\{userName}\.nuget\packages\microsoft.extensions.configuration.abstractions\1.1.0\lib\netstandard1.0\Microsoft.Extensions.Configuration.Abstractions.dll;C:\Users\{userName}\.nuget\packages\microsoft.extensions.configuration.binder\1.1.0\lib\netstandard1.1\Microsoft.Extensions.Configuration.Binder.dll;C:\Users\{userName}\.nuget\packages\microsoft.extensions.configuration.environmentvariables\1.1.0\lib\netstandard1.3\Microsoft.Extensions.Configuration.EnvironmentVariables.dll;C:\Users\{userName}\.nuget\packages\microsoft.extensions.configuration.fileextensions\1.1.0\lib\netstandard1.3\Microsoft.Extensions.Configuration.FileExtensions.dll;C:\Users\{userName}\.nuget\packages\microsoft.extensions.configuration.json\1.1.0\lib\netstandard1.3\Microsoft.Extensions.Configuration.Json.dll;C:\Users\{userName}\.nuget\packages\microsoft.extensions.configuration\1.1.0\lib\netstandard1.1\Microsoft.Extensions.Configuration.dll;C:\Users\{userName}\.nuget\packages\microsoft.extensions.dependencyinjection.abstractions\1.1.0\lib\netstandard1.0\Microsoft.Extensions.DependencyInjection.Abstractions.dll;C:\Users\{userName}\.nuget\packages\microsoft.extensions.dependencyinjection\1.1.0\lib\netstandard1.1\Microsoft.Extensions.DependencyInjection.dll;C:\Users\{userName}\.nuget\packages\microsoft.extensions.diagnosticadapter\1.0.0\lib\netstandard1.1\Microsoft.Extensions.DiagnosticAdapter.dll;C:\Users\{userName}\.nuget\packages\microsoft.extensions.fileproviders.abstractions\1.1.0\lib\netstandard1.0\Microsoft.Extensions.FileProviders.Abstractions.dll;C:\Users\{userName}\.nuget\packages\microsoft.extensions.fileproviders.physical\1.1.0\lib\netstandard1.3\Microsoft.Extensions.FileProviders.Physical.dll;C:\Users\{userName}\.nuget\packages\microsoft.extensions.filesystemglobbing\1.1.0\lib\netstandard1.3\Microsoft.Extensions.FileSystemGlobbing.dll;C:\Users\{userName}\.nuget\packages\microsoft.extensions.logging.abstractions\1.1.0\lib\netstandard1.1\Microsoft.Extensions.Logging.Abstractions.dll;C:\Users\{userName}\.nuget\packages\microsoft.extensions.logging.console\1.1.0\lib\netstandard1.3\Microsoft.Extensions.Logging.Console.dll;C:\Users\{userName}\.nuget\packages\microsoft.extensions.logging\1.1.0\lib\netstandard1.1\Microsoft.Extensions.Logging.dll;C:\Users\{userName}\.nuget\packages\microsoft.extensions.objectpool\1.1.0\lib\netstandard1.3\Microsoft.Extensions.ObjectPool.dll;C:\Users\{userName}\.nuget\packages\microsoft.extensions.options.configurationextensions\1.1.0\lib\netstandard1.1\Microsoft.Extensions.Options.ConfigurationExtensions.dll;C:\Users\{userName}\.nuget\packages\microsoft.extensions.options\1.1.0\lib\netstandard1.0\Microsoft.Extensions.Options.dll;C:\Users\{userName}\.nuget\packages\microsoft.extensions.platformabstractions\1.1.0\lib\netstandard1.3\Microsoft.Extensions.PlatformAbstractions.dll;C:\Users\{userName}\.nuget\packages\microsoft.extensions.primitives\1.1.0\lib\netstandard1.0\Microsoft.Extensions.Primitives.dll;C:\Users\{userName}\.nuget\packages\microsoft.net.http.headers\1.1.0\lib\netstandard1.1\Microsoft.Net.Http.Headers.dll;C:\Users\{userName}\.nuget\packages\newtonsoft.json\9.0.1\lib\netstandard1.0\Newtonsoft.Json.dll;C:\Users\{userName}\.nuget\packages\system.appcontext\4.3.0\lib\netstandard1.6\System.AppContext.dll;C:\Users\{userName}\.nuget\packages\system.buffers\4.3.0\lib\netstandard1.1\System.Buffers.dll;C:\Users\{userName}\.nuget\packages\system.collections.concurrent\4.3.0\lib\netstandard1.3\System.Collections.Concurrent.dll;C:\Users\{userName}\.nuget\packages\system.collections.immutable\1.3.0\lib\netstandard1.0\System.Collections.Immutable.dll;C:\Users\{userName}\.nuget\packages\system.collections.nongeneric\4.3.0\lib\netstandard1.3\System.Collections.NonGeneric.dll;C:\Users\{userName}\.nuget\packages\system.collections.specialized\4.3.0\lib\netstandard1.3\System.Collections.Specialized.dll;C:\Users\{userName}\.nuget\packages\system.componentmodel.primitives\4.3.0\lib\netstandard1.0\System.ComponentModel.Primitives.dll;C:\Users\{userName}\.nuget\packages\system.componentmodel.typeconverter\4.3.0\lib\netstandard1.5\System.ComponentModel.TypeConverter.dll;C:\Users\{userName}\.nuget\packages\system.componentmodel\4.3.0\lib\netstandard1.3\System.ComponentModel.dll;C:\Users\{userName}\.nuget\packages\system.diagnostics.contracts\4.3.0\lib\netstandard1.0\System.Diagnostics.Contracts.dll;C:\Users\{userName}\.nuget\packages\system.diagnostics.diagnosticsource\4.3.0\lib\netstandard1.3\System.Diagnostics.DiagnosticSource.dll;C:\Users\{userName}\.nuget\packages\system.diagnostics.stacktrace\4.3.0\lib\netstandard1.3\System.Diagnostics.StackTrace.dll;C:\Users\{userName}\.nuget\packages\system.dynamic.runtime\4.3.0\lib\netstandard1.3\System.Dynamic.Runtime.dll;C:\Users\{userName}\.nuget\packages\system.globalization.extensions\4.3.0\runtimes\win\lib\netstandard1.3\System.Globalization.Extensions.dll;C:\Users\{userName}\.nuget\packages\system.io.compression.zipfile\4.3.0\lib\netstandard1.3\System.IO.Compression.ZipFile.dll;C:\Users\{userName}\.nuget\packages\system.io.compression\4.3.0\runtimes\win\lib\netstandard1.3\System.IO.Compression.dll;C:\Users\{userName}\.nuget\packages\system.io.filesystem.primitives\4.3.0\lib\netstandard1.3\System.IO.FileSystem.Primitives.dll;C:\Users\{userName}\.nuget\packages\system.io.filesystem.watcher\4.3.0\runtimes\win\lib\netstandard1.3\System.IO.FileSystem.Watcher.dll;C:\Users\{userName}\.nuget\packages\system.linq.expressions\4.3.0\lib\netstandard1.6\System.Linq.Expressions.dll;C:\Users\{userName}\.nuget\packages\system.linq\4.3.0\lib\netstandard1.6\System.Linq.dll;C:\Users\{userName}\.nuget\packages\system.net.http\4.3.0\runtimes\win\lib\netstandard1.3\System.Net.Http.dll;C:\Users\{userName}\.nuget\packages\system.net.websockets\4.3.0\lib\netstandard1.3\System.Net.WebSockets.dll;C:\Users\{userName}\.nuget\packages\system.numerics.vectors\4.3.0\lib\netstandard1.0\System.Numerics.Vectors.dll;C:\Users\{userName}\.nuget\packages\system.objectmodel\4.3.0\lib\netstandard1.3\System.ObjectModel.dll;C:\Users\{userName}\.nuget\packages\system.reflection.emit.ilgeneration\4.3.0\lib\netstandard1.3\System.Reflection.Emit.ILGeneration.dll;C:\Users\{userName}\.nuget\packages\system.reflection.emit.lightweight\4.3.0\lib\netstandard1.3\System.Reflection.Emit.Lightweight.dll;C:\Users\{userName}\.nuget\packages\system.reflection.emit\4.3.0\lib\netstandard1.3\System.Reflection.Emit.dll;C:\Users\{userName}\.nuget\packages\system.reflection.metadata\1.4.1\lib\netstandard1.1\System.Reflection.Metadata.dll;C:\Users\{userName}\.nuget\packages\system.reflection.typeextensions\4.3.0\lib\netstandard1.5\System.Reflection.TypeExtensions.dll;C:\Users\{userName}\.nuget\packages\system.runtime.compilerservices.unsafe\4.3.0\lib\netstandard1.0\System.Runtime.CompilerServices.Unsafe.dll;C:\Users\{userName}\.nuget\packages\system.runtime.interopservices.runtimeinformation\4.3.0\runtimes\win\lib\netstandard1.1\System.Runtime.InteropServices.RuntimeInformation.dll;C:\Users\{userName}\.nuget\packages\system.runtime.loader\4.3.0\lib\netstandard1.5\System.Runtime.Loader.dll;C:\Users\{userName}\.nuget\packages\system.runtime.numerics\4.3.0\lib\netstandard1.3\System.Runtime.Numerics.dll;C:\Users\{userName}\.nuget\packages\system.runtime.serialization.primitives\4.3.0\lib\netstandard1.3\System.Runtime.Serialization.Primitives.dll;C:\Users\{userName}\.nuget\packages\system.security.claims\4.3.0\lib\netstandard1.3\System.Security.Claims.dll;C:\Users\{userName}\.nuget\packages\system.security.cryptography.algorithms\4.3.0\runtimes\win\lib\netstandard1.6\System.Security.Cryptography.Algorithms.dll;C:\Users\{userName}\.nuget\packages\system.security.cryptography.cng\4.3.0\runtimes\win\lib\netstandard1.6\System.Security.Cryptography.Cng.dll;C:\Users\{userName}\.nuget\packages\system.security.cryptography.csp\4.3.0\runtimes\win\lib\netstandard1.3\System.Security.Cryptography.Csp.dll;C:\Users\{userName}\.nuget\packages\system.security.cryptography.encoding\4.3.0\runtimes\win\lib\netstandard1.3\System.Security.Cryptography.Encoding.dll;C:\Users\{userName}\.nuget\packages\system.security.cryptography.openssl\4.3.0\lib\netstandard1.6\System.Security.Cryptography.OpenSsl.dll;C:\Users\{userName}\.nuget\packages\system.security.cryptography.primitives\4.3.0\lib\netstandard1.3\System.Security.Cryptography.Primitives.dll;C:\Users\{userName}\.nuget\packages\system.security.cryptography.x509certificates\4.3.0\runtimes\win\lib\netstandard1.6\System.Security.Cryptography.X509Certificates.dll;C:\Users\{userName}\.nuget\packages\system.security.principal.windows\4.3.0\runtimes\win\lib\netstandard1.3\System.Security.Principal.Windows.dll;C:\Users\{userName}\.nuget\packages\system.security.principal\4.3.0\lib\netstandard1.0\System.Security.Principal.dll;C:\Users\{userName}\.nuget\packages\system.text.encodings.web\4.3.0\lib\netstandard1.0\System.Text.Encodings.Web.dll;C:\Users\{userName}\.nuget\packages\system.text.regularexpressions\4.3.0\lib\netstandard1.6\System.Text.RegularExpressions.dll;C:\Users\{userName}\.nuget\packages\system.threading.overlapped\4.3.0\runtimes\win\lib\netstandard1.3\System.Threading.Overlapped.dll;C:\Users\{userName}\.nuget\packages\system.threading.tasks.extensions\4.3.0\lib\netstandard1.0\System.Threading.Tasks.Extensions.dll;C:\Users\{userName}\.nuget\packages\system.threading.thread\4.3.0\lib\netstandard1.3\System.Threading.Thread.dll;C:\Users\{userName}\.nuget\packages\system.threading.threadpool\4.3.0\lib\netstandard1.3\System.Threading.ThreadPool.dll;C:\Users\{userName}\.nuget\packages\system.threading\4.3.0\lib\netstandard1.3\System.Threading.dll;C:\Users\{userName}\.nuget\packages\system.xml.readerwriter\4.3.0\lib\netstandard1.3\System.Xml.ReaderWriter.dll;C:\Users\{userName}\.nuget\packages\system.xml.xdocument\4.3.0\lib\netstandard1.3\System.Xml.XDocument.dll;C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\Microsoft.CSharp.dll;C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\Microsoft.CodeAnalysis.CSharp.dll;C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\Microsoft.CodeAnalysis.dll;C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\Microsoft.CodeAnalysis.VisualBasic.dll;C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\Microsoft.VisualBasic.dll;C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\Microsoft.Win32.Registry.dll;C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\System.ComponentModel.Annotations.dll;C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\System.Diagnostics.FileVersionInfo.dll;C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\System.Diagnostics.Process.dll;C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\System.IO.MemoryMappedFiles.dll;C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\System.IO.UnmanagedMemoryStream.dll;C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\System.Linq.Parallel.dll;C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\System.Linq.Queryable.dll;C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\System.Net.NameResolution.dll;C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\System.Net.Requests.dll;C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\System.Net.Security.dll;C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\System.Net.WebHeaderCollection.dll;C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\System.Reflection.DispatchProxy.dll;C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\System.Resources.Reader.dll;C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\System.Text.Encoding.CodePages.dll;C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\System.Threading.Tasks.Dataflow.dll;C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\System.Threading.Tasks.Parallel.dll;C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\System.Xml.XPath.XDocument.dll;C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\System.Xml.XPath.dll;C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\System.Xml.XmlDocument.dll;C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\System.Collections.dll;C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\System.Diagnostics.Tools.dll;C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\System.Diagnostics.Tracing.dll;C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\System.Globalization.Calendars.dll;C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\System.Globalization.dll;C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\System.IO.dll;C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\System.Reflection.Extensions.dll;C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\System.Reflection.Primitives.dll;C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\System.Reflection.dll;C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\System.Resources.ResourceManager.dll;C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\System.Runtime.Handles.dll;C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\System.Runtime.InteropServices.dll;C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\System.Runtime.dll;C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\System.Text.Encoding.Extensions.dll;C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\System.Text.Encoding.dll;C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\System.Threading.Tasks.dll;C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\System.Threading.Timer.dll;C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\Microsoft.Win32.Primitives.dll;C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\System.Console.dll;C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\System.Diagnostics.Debug.dll;C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\System.IO.FileSystem.dll;C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\System.Net.Primitives.dll;C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\System.Net.Sockets.dll;C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\System.Runtime.Extensions.dll;C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\System.Private.CoreLib.dll;C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\mscorlib.dll;C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\System.Private.Uri.dll;
Property APP_PATHS = C:\TFSAPP\VSTS\CoreTest2017-3\CoreTest2017-3\bin\Debug\netcoreapp1.0
Property APP_NI_PATHS = C:\TFSAPP\VSTS\CoreTest2017-3\CoreTest2017-3\bin\Debug\netcoreapp1.0
Property NATIVE_DLL_SEARCH_DIRECTORIES = C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3;
Property PLATFORM_RESOURCE_ROOTS =
Property AppDomainCompatSwitch = UseLatestBehaviorWhenTFMNotSpecified
Property APP_CONTEXT_BASE_DIRECTORY = C:\TFSAPP\VSTS\CoreTest2017-3\CoreTest2017-3\bin\Debug\netcoreapp1.0
Property APP_CONTEXT_DEPS_FILES = C:\TFSAPP\VSTS\CoreTest2017-3\CoreTest2017-3\bin\Debug\netcoreapp1.0\CoreTest2017-3.deps.json;C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\Microsoft.NETCore.App.deps.json
Property FX_DEPS_FILE = C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\Microsoft.NETCore.App.deps.json
Property JIT_PATH = C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.3\clrjit.dll
Property System.GC.Server = true
Launch host: C:\Program Files\dotnet\dotnet.exe, app: C:\TFSAPP\VSTS\CoreTest2017-3\CoreTest2017-3\bin\Debug\netcoreapp1.0\CoreTest2017-3.dll, argc: 0, args:
--- Begin breadcrumb write
Number of breadcrumb files to write is 388
Breadcrumb thread write callback...
Breadcrumbs will be written using a background thread
Failed to leave breadcrumb
[...]
Failed to leave breadcrumb
Unhandled Exception: Failed to leave breadcrumb
System.BadImageFormatException: Could not load file or assembly 'Microsoft.AspNetCore.Hosting, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60'. The module was expected to contain an assembly manifest.
   at CoreTest2017_3.Program.Main(String[] args)
Failed to leave breadcrumb
[...]
Failed to leave breadcrumb
Waiting for breadcrumb thread to exit...
--- End breadcrumb write 0

Related to this question:

http://stackoverflow.com/q/42416327/3384388