在控制台应用程序中自托管 SignalR，抛出 Could not load file or assembly 'Microsoft.AspNet.SignalR.Core.. when deployed

Question

我在控制台应用程序中自行托管 SignalR。如果 visual studio 安装在机器上，代码可以正常工作。但是，当我构建并发送到一台没有 visual studio 的机器时，代码在尝试启动 signalR 时失败，出现以下错误。

Could not load file or assembly 'Microsoft.AspNet.SignalR.Core, Version=2.2.2.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. Operation is not supported. (Exception from HRESULT: 0x80131515)

使用Visual Studio2017编译代码

包配置

<packages>
<package id="Microsoft.AspNet.Cors" version="5.2.3" targetFramework="net452" />
  <package id="Microsoft.AspNet.SignalR.Core" version="2.2.2" targetFramework="net452" />
  <package id="Microsoft.AspNet.SignalR.SelfHost" version="2.2.2" targetFramework="net452" />
  <package id="Microsoft.IdentityModel.Clients.ActiveDirectory" version="3.13.9" targetFramework="net452" />
  <package id="Microsoft.NETCore.Platforms" version="1.1.0" targetFramework="net452" />
  <package id="Microsoft.Owin" version="3.1.0" targetFramework="net452" />
  <package id="Microsoft.Owin.Cors" version="3.1.0" targetFramework="net452" />
  <package id="Microsoft.Owin.Diagnostics" version="3.1.0" targetFramework="net452" />
  <package id="Microsoft.Owin.Host.HttpListener" version="3.1.0" targetFramework="net452" />
  <package id="Microsoft.Owin.Hosting" version="3.1.0" targetFramework="net452" />
  <package id="Microsoft.Owin.Security" version="3.1.0" targetFramework="net452" />
  <package id="Microsoft.Owin.SelfHost" version="3.1.0" targetFramework="net452" />
  <package id="NETStandard.Library" version="1.6.1" targetFramework="net452" />
  <package id="Newtonsoft.Json" version="10.0.3" targetFramework="net452" />
  <package id="Owin" version="1.0" targetFramework="net452" />
  <package id="RestSharp" version="105.2.3" targetFramework="net452" />
  <package id="sqlite-net-pcl" version="1.3.3" targetFramework="net452" />
  <package id="SQLitePCLRaw.bundle_green" version="1.1.5" targetFramework="net452" />
  <package id="SQLitePCLRaw.core" version="1.1.5" targetFramework="net452" />
  <package id="SQLitePCLRaw.lib.e_sqlite3.linux" version="1.1.5" targetFramework="net452" />
  <package id="SQLitePCLRaw.lib.e_sqlite3.osx" version="1.1.5" targetFramework="net452" />
  <package id="SQLitePCLRaw.lib.e_sqlite3.v110_xp" version="1.1.5" targetFramework="net452" />
  <package id="SQLitePCLRaw.provider.e_sqlite3.net45" version="1.1.5" targetFramework="net452" />
  <package id="System.Collections" version="4.3.0" targetFramework="net452" />
  <package id="System.Collections.Concurrent" version="4.3.0" targetFramework="net452" />
  <package id="System.Diagnostics.Debug" version="4.3.0" targetFramework="net452" />
  <package id="System.Diagnostics.Tools" version="4.3.0" targetFramework="net452" />
  <package id="System.Diagnostics.Tracing" version="4.3.0" targetFramework="net452" />
  <package id="System.Globalization" version="4.3.0" targetFramework="net452" />
  <package id="System.IO" version="4.3.0" targetFramework="net452" />
  <package id="System.IO.Compression" version="4.3.0" targetFramework="net452" />
  <package id="System.Linq" version="4.3.0" targetFramework="net452" />
  <package id="System.Linq.Expressions" version="4.3.0" targetFramework="net452" />
  <package id="System.Net.Http" version="4.3.2" targetFramework="net452" />
  <package id="System.Net.Primitives" version="4.3.0" targetFramework="net452" />
  <package id="System.ObjectModel" version="4.3.0" targetFramework="net452" />
  <package id="System.Reflection" version="4.3.0" targetFramework="net452" />
  <package id="System.Reflection.Extensions" version="4.3.0" targetFramework="net452" />
  <package id="System.Reflection.Primitives" version="4.3.0" targetFramework="net452" />
  <package id="System.Resources.ResourceManager" version="4.3.0" targetFramework="net452" />
  <package id="System.Runtime" version="4.3.0" targetFramework="net452" />
  <package id="System.Runtime.Extensions" version="4.3.0" targetFramework="net452" />
  <package id="System.Runtime.InteropServices" version="4.3.0" targetFramework="net452" />
  <package id="System.Runtime.InteropServices.RuntimeInformation" version="4.3.0" targetFramework="net452" />
  <package id="System.Runtime.Numerics" version="4.3.0" targetFramework="net452" />
  <package id="System.Text.Encoding" version="4.3.0" targetFramework="net452" />
  <package id="System.Text.Encoding.Extensions" version="4.3.0" targetFramework="net452" />
  <package id="System.Text.RegularExpressions" version="4.3.0" targetFramework="net452" />
  <package id="System.Threading" version="4.3.0" targetFramework="net452" />
  <package id="System.Threading.Tasks" version="4.3.0" targetFramework="net452" />
  <package id="System.Threading.Timer" version="4.3.0" targetFramework="net452" />
  <package id="System.Xml.ReaderWriter" version="4.3.0" targetFramework="net452" />
  <package id="System.Xml.XDocument" version="4.3.0" targetFramework="net452" />
</packages>

应用配置

<configuration>
  <startup> 
    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5.2" />
  </startup>
  <runtime>
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
      <dependentAssembly>
        <assemblyIdentity name="Microsoft.Owin" publicKeyToken="31bf3856ad364e35" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-3.1.0.0" newVersion="3.1.0.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="Newtonsoft.Json" publicKeyToken="30ad4fe6b2a6aeed" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-10.0.0.0" newVersion="10.0.0.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="System.Web.Cors" publicKeyToken="31bf3856ad364e35" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-5.2.3.0" newVersion="5.2.3.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="Microsoft.Owin.Security" publicKeyToken="31bf3856ad364e35" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-3.1.0.0" newVersion="3.1.0.0" />
      </dependentAssembly>
    </assemblyBinding>
  </runtime>

Answer 1

事实证明，我只需要在配置文件中添加一行，一切正常。要解决，请添加条目 "loadFromRemoteSources"，如下所示。

<configuration>  
   <runtime>  
      <loadFromRemoteSources enabled="true"/>  
   </runtime>  
</configuration>

https://docs.microsoft.com/en-us/dotnet/framework/configure-apps/file-schema/runtime/loadfromremotesources-element

Answer 2

在我使用信号器中心的自托管应用程序的情况下，我发现了此类异常的另一个问题 - 无法加载文件或程序集 Microsoft.AspNet.SignalR.Core。我也有控制台应用程序，但我的信号器集线器位于单独的程序集中，由 head(startup) 控制台程序集引用。因此，我也被迫在启动控制台程序集上安装并更新 Microsoft.AspNet.SignalR.Core 的版本。

在控制台应用程序中自托管 SignalR，抛出 Could not load file or assembly 'Microsoft.AspNet.SignalR.Core.. when deployed

Self hosting SignalR in console app, throws Could not load file or assembly 'Microsoft.AspNet.SignalR.Core.... when deployed

.net

c#

asp.net

signalr

visual-studio-2017

包配置

应用配置