我一直试图将我当前的asp.net项目拆分为遵循分层体系结构的多个项目，但是在进行了一些更改之后，我没有收到错误消息“程序不包含适用于该项目入口点的静态“ Main”方法我的域层项目。
我带有主要方法的program.cs在我的表示层项目中：
namespace AspNetCore.VueJs
{
public class Program
{
public static void Main(string[] args)
{
BuildWebHost(args).Run();
}
public static IWebHost BuildWebHost(string[] args) =>
WebHost.CreateDefaultBuilder(args)
.UseStartup<Startup>()
.Build();
}
}
我的csproj用于域层项目：
<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
<PropertyGroup>
<Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
<Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
<ProjectGuid>{85460453-E49C-4FE9-88E5-371A0880966C}</ProjectGuid>
<OutputType>Exe</OutputType>
<RootNamespace>Domain</RootNamespace>
<AssemblyName>Domain</AssemblyName>
<TargetFrameworkVersion>v4.6.1</TargetFrameworkVersion>
<FileAlignment>512</FileAlignment>
<AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
<Deterministic>true</Deterministic>
</PropertyGroup>
<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
<PlatformTarget>AnyCPU</PlatformTarget>
<DebugSymbols>true</DebugSymbols>
<DebugType>full</DebugType>
<Optimize>false</Optimize>
<OutputPath>bin\Debug\</OutputPath>
<DefineConstants>DEBUG;TRACE</DefineConstants>
<ErrorReport>prompt</ErrorReport>
<WarningLevel>4</WarningLevel>
</PropertyGroup>
<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
<PlatformTarget>AnyCPU</PlatformTarget>
<DebugType>pdbonly</DebugType>
<Optimize>true</Optimize>
<OutputPath>bin\Release\</OutputPath>
<DefineConstants>TRACE</DefineConstants>
<ErrorReport>prompt</ErrorReport>
<WarningLevel>4</WarningLevel>
</PropertyGroup>
<ItemGroup>
<None Include="App.config" />
<None Include="packages.config" />
</ItemGroup>
<ItemGroup>
<Compile Include="Entities\ExampleEntity.cs" />
<Compile Include="Identity\ApplicationRole.cs" />
<Compile Include="Identity\ApplicationRoles.cs" />
<Compile Include="Identity\ApplicationUser.cs" />
<Compile Include="Identity\ApplicationUserLogin.cs" />
</ItemGroup>
<ItemGroup>
<Reference Include="Microsoft.AspNetCore.Authentication, Version=2.2.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60, processorArchitecture=MSIL">
<HintPath>..\packages\Microsoft.AspNetCore.Authentication.2.2.0\lib\netstandard2.0\Microsoft.AspNetCore.Authentication.dll</HintPath>
</Reference>
<Reference Include="Microsoft.AspNetCore.Authentication.Abstractions, Version=2.2.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60, processorArchitecture=MSIL">
<HintPath>..\packages\Microsoft.AspNetCore.Authentication.Abstractions.2.2.0\lib\netstandard2.0\Microsoft.AspNetCore.Authentication.Abstractions.dll</HintPath>
</Reference>
<Reference Include="Microsoft.AspNetCore.Authentication.Cookies, Version=2.2.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60, processorArchitecture=MSIL">
<HintPath>..\packages\Microsoft.AspNetCore.Authentication.Cookies.2.2.0\lib\netstandard2.0\Microsoft.AspNetCore.Authentication.Cookies.dll</HintPath>
</Reference>
<Reference Include="Microsoft.AspNetCore.Authentication.Core, Version=2.2.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60, processorArchitecture=MSIL">
<HintPath>..\packages\Microsoft.AspNetCore.Authentication.Core.2.2.0\lib\netstandard2.0\Microsoft.AspNetCore.Authentication.Core.dll</HintPath>
</Reference>
<Reference Include="Microsoft.AspNetCore.Cryptography.Internal, Version=2.2.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60, processorArchitecture=MSIL">
<HintPath>..\packages\Microsoft.AspNetCore.Cryptography.Internal.2.2.0\lib\netstandard2.0\Microsoft.AspNetCore.Cryptography.Internal.dll</HintPath>
</Reference>
<Reference Include="Microsoft.AspNetCore.Cryptography.KeyDerivation, Version=2.2.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60, processorArchitecture=MSIL">
<HintPath>..\packages\Microsoft.AspNetCore.Cryptography.KeyDerivation.2.2.0\lib\netstandard2.0\Microsoft.AspNetCore.Cryptography.KeyDerivation.dll</HintPath>
</Reference>
<Reference Include="Microsoft.AspNetCore.DataProtection, Version=2.2.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60, processorArchitecture=MSIL">
<HintPath>..\packages\Microsoft.AspNetCore.DataProtection.2.2.0\lib\netstandard2.0\Microsoft.AspNetCore.DataProtection.dll</HintPath>
</Reference>
<Reference Include="Microsoft.AspNetCore.DataProtection.Abstractions, Version=2.2.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60, processorArchitecture=MSIL">
<HintPath>..\packages\Microsoft.AspNetCore.DataProtection.Abstractions.2.2.0\lib\netstandard2.0\Microsoft.AspNetCore.DataProtection.Abstractions.dll</HintPath>
</Reference>
<Reference Include="Microsoft.AspNetCore.Hosting.Abstractions, Version=2.2.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60, processorArchitecture=MSIL">
<HintPath>..\packages\Microsoft.AspNetCore.Hosting.Abstractions.2.2.0\lib\netstandard2.0\Microsoft.AspNetCore.Hosting.Abstractions.dll</HintPath>
</Reference>
<Reference Include="Microsoft.AspNetCore.Hosting.Server.Abstractions, Version=2.2.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60, processorArchitecture=MSIL">
<HintPath>..\packages\Microsoft.AspNetCore.Hosting.Server.Abstractions.2.2.0\lib\netstandard2.0\Microsoft.AspNetCore.Hosting.Server.Abstractions.dll</HintPath>
</Reference>
<Reference Include="Microsoft.AspNetCore.Http, Version=2.2.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60, processorArchitecture=MSIL">
<HintPath>..\packages\Microsoft.AspNetCore.Http.2.2.0\lib\netstandard2.0\Microsoft.AspNetCore.Http.dll</HintPath>
</Reference>
<Reference Include="Microsoft.AspNetCore.Http.Abstractions, Version=2.2.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60, processorArchitecture=MSIL">
<HintPath>..\packages\Microsoft.AspNetCore.Http.Abstractions.2.2.0\lib\netstandard2.0\Microsoft.AspNetCore.Http.Abstractions.dll</HintPath>
</Reference>
<Reference Include="Microsoft.AspNetCore.Http.Extensions, Version=2.2.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60, processorArchitecture=MSIL">
<HintPath>..\packages\Microsoft.AspNetCore.Http.Extensions.2.2.0\lib\netstandard2.0\Microsoft.AspNetCore.Http.Extensions.dll</HintPath>
</Reference>
<Reference Include="Microsoft.AspNetCore.Http.Features, Version=2.2.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60, processorArchitecture=MSIL">
<HintPath>..\packages\Microsoft.AspNetCore.Http.Features.2.2.0\lib\netstandard2.0\Microsoft.AspNetCore.Http.Features.dll</HintPath>
</Reference>
<Reference Include="Microsoft.AspNetCore.Identity, Version=2.2.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60, processorArchitecture=MSIL">
<HintPath>..\packages\Microsoft.AspNetCore.Identity.2.2.0\lib\netstandard2.0\Microsoft.AspNetCore.Identity.dll</HintPath>
</Reference>
<Reference Include="Microsoft.AspNetCore.WebUtilities, Version=2.2.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60, processorArchitecture=MSIL">
<HintPath>..\packages\Microsoft.AspNetCore.WebUtilities.2.2.0\lib\netstandard2.0\Microsoft.AspNetCore.WebUtilities.dll</HintPath>
</Reference>
<Reference Include="Microsoft.Extensions.Configuration, Version=2.2.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60, processorArchitecture=MSIL">
<HintPath>..\packages\Microsoft.Extensions.Configuration.2.2.0\lib\netstandard2.0\Microsoft.Extensions.Configuration.dll</HintPath>
</Reference>
<Reference Include="Microsoft.Extensions.Configuration.Abstractions, Version=2.2.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60, processorArchitecture=MSIL">
<HintPath>..\packages\Microsoft.Extensions.Configuration.Abstractions.2.2.0\lib\netstandard2.0\Microsoft.Extensions.Configuration.Abstractions.dll</HintPath>
</Reference>
<Reference Include="Microsoft.Extensions.Configuration.Binder, Version=2.2.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60, processorArchitecture=MSIL">
<HintPath>..\packages\Microsoft.Extensions.Configuration.Binder.2.2.0\lib\netstandard2.0\Microsoft.Extensions.Configuration.Binder.dll</HintPath>
</Reference>
<Reference Include="Microsoft.Extensions.DependencyInjection.Abstractions, Version=2.2.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60, processorArchitecture=MSIL">
<HintPath>..\packages\Microsoft.Extensions.DependencyInjection.Abstractions.2.2.0\lib\netstandard2.0\Microsoft.Extensions.DependencyInjection.Abstractions.dll</HintPath>
</Reference>
<Reference Include="Microsoft.Extensions.FileProviders.Abstractions, Version=2.2.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60, processorArchitecture=MSIL">
<HintPath>..\packages\Microsoft.Extensions.FileProviders.Abstractions.2.2.0\lib\netstandard2.0\Microsoft.Extensions.FileProviders.Abstractions.dll</HintPath>
</Reference>
<Reference Include="Microsoft.Extensions.Hosting.Abstractions, Version=2.2.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60, processorArchitecture=MSIL">
<HintPath>..\packages\Microsoft.Extensions.Hosting.Abstractions.2.2.0\lib\netstandard2.0\Microsoft.Extensions.Hosting.Abstractions.dll</HintPath>
</Reference>
<Reference Include="Microsoft.Extensions.Identity.Core, Version=2.2.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60, processorArchitecture=MSIL">
<HintPath>..\packages\Microsoft.Extensions.Identity.Core.2.2.0\lib\netstandard2.0\Microsoft.Extensions.Identity.Core.dll</HintPath>
</Reference>
<Reference Include="Microsoft.Extensions.Identity.Stores, Version=2.2.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60, processorArchitecture=MSIL">
<HintPath>..\packages\Microsoft.Extensions.Identity.Stores.2.2.0\lib\netstandard2.0\Microsoft.Extensions.Identity.Stores.dll</HintPath>
</Reference>
<Reference Include="Microsoft.Extensions.Logging, Version=2.2.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60, processorArchitecture=MSIL">
<HintPath>..\packages\Microsoft.Extensions.Logging.2.2.0\lib\netstandard2.0\Microsoft.Extensions.Logging.dll</HintPath>
</Reference>
<Reference Include="Microsoft.Extensions.Logging.Abstractions, Version=2.2.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60, processorArchitecture=MSIL">
<HintPath>..\packages\Microsoft.Extensions.Logging.Abstractions.2.2.0\lib\netstandard2.0\Microsoft.Extensions.Logging.Abstractions.dll</HintPath>
</Reference>
<Reference Include="Microsoft.Extensions.ObjectPool, Version=2.2.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60, processorArchitecture=MSIL">
<HintPath>..\packages\Microsoft.Extensions.ObjectPool.2.2.0\lib\netstandard2.0\Microsoft.Extensions.ObjectPool.dll</HintPath>
</Reference>
<Reference Include="Microsoft.Extensions.Options, Version=2.2.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60, processorArchitecture=MSIL">
<HintPath>..\packages\Microsoft.Extensions.Options.2.2.0\lib\netstandard2.0\Microsoft.Extensions.Options.dll</HintPath>
</Reference>
<Reference Include="Microsoft.Extensions.Primitives, Version=2.2.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60, processorArchitecture=MSIL">
<HintPath>..\packages\Microsoft.Extensions.Primitives.2.2.0\lib\netstandard2.0\Microsoft.Extensions.Primitives.dll</HintPath>
</Reference>
<Reference Include="Microsoft.Extensions.WebEncoders, Version=2.2.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60, processorArchitecture=MSIL">
<HintPath>..\packages\Microsoft.Extensions.WebEncoders.2.2.0\lib\netstandard2.0\Microsoft.Extensions.WebEncoders.dll</HintPath>
</Reference>
<Reference Include="Microsoft.Net.Http.Headers, Version=2.2.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60, processorArchitecture=MSIL">
<HintPath>..\packages\Microsoft.Net.Http.Headers.2.2.0\lib\netstandard2.0\Microsoft.Net.Http.Headers.dll</HintPath>
</Reference>
<Reference Include="Microsoft.Win32.Registry, Version=4.1.1.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
<HintPath>..\packages\Microsoft.Win32.Registry.4.5.0\lib\net461\Microsoft.Win32.Registry.dll</HintPath>
</Reference>
<Reference Include="System" />
<Reference Include="System.Buffers, Version=4.0.3.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51, processorArchitecture=MSIL">
<HintPath>..\packages\System.Buffers.4.5.0\lib\netstandard2.0\System.Buffers.dll</HintPath>
</Reference>
<Reference Include="System.ComponentModel.Annotations, Version=4.2.1.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
<HintPath>..\packages\System.ComponentModel.Annotations.4.5.0\lib\net461\System.ComponentModel.Annotations.dll</HintPath>
</Reference>
<Reference Include="System.ComponentModel.DataAnnotations" />
<Reference Include="System.Data" />
<Reference Include="System.Data.OracleClient" />
<Reference Include="System.Drawing" />
<Reference Include="System.Memory, Version=4.0.1.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51, processorArchitecture=MSIL">
<HintPath>..\packages\System.Memory.4.5.1\lib\netstandard2.0\System.Memory.dll</HintPath>
</Reference>
<Reference Include="System.Net" />
<Reference Include="System.Numerics" />
<Reference Include="System.Numerics.Vectors, Version=4.1.3.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
<HintPath>..\packages\System.Numerics.Vectors.4.4.0\lib\net46\System.Numerics.Vectors.dll</HintPath>
</Reference>
<Reference Include="System.Runtime.CompilerServices.Unsafe, Version=4.0.4.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
<HintPath>..\packages\System.Runtime.CompilerServices.Unsafe.4.5.1\lib\netstandard2.0\System.Runtime.CompilerServices.Unsafe.dll</HintPath>
</Reference>
<Reference Include="System.Security" />
<Reference Include="System.Security.AccessControl, Version=4.1.1.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
<HintPath>..\packages\System.Security.AccessControl.4.5.0\lib\net461\System.Security.AccessControl.dll</HintPath>
</Reference>
<Reference Include="System.Security.Cryptography.Xml, Version=4.0.1.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51, processorArchitecture=MSIL">
<HintPath>..\packages\System.Security.Cryptography.Xml.4.5.0\lib\net461\System.Security.Cryptography.Xml.dll</HintPath>
</Reference>
<Reference Include="System.Security.Permissions, Version=4.0.1.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51, processorArchitecture=MSIL">
<HintPath>..\packages\System.Security.Permissions.4.5.0\lib\net461\System.Security.Permissions.dll</HintPath>
</Reference>
<Reference Include="System.Security.Principal.Windows, Version=4.1.1.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
<HintPath>..\packages\System.Security.Principal.Windows.4.5.0\lib\net461\System.Security.Principal.Windows.dll</HintPath>
</Reference>
<Reference Include="System.ServiceProcess" />
<Reference Include="System.Text.Encodings.Web, Version=4.0.3.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51, processorArchitecture=MSIL">
<HintPath>..\packages\System.Text.Encodings.Web.4.5.0\lib\netstandard2.0\System.Text.Encodings.Web.dll</HintPath>
</Reference>
<Reference Include="System.Transactions" />
<Reference Include="System.Xml" />
</ItemGroup>
<Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
</Project>
我的启动项目设置为我的Api项目（具有主要方法的项目）。