SignalR和c#导致版本错误

本文关键字：版本 错误 SignalR | 更新日期: 2023-09-27 17:59:42

我刚刚安装了SignalR，收到下面的错误。看起来我有一个版本问题，但我不知道在哪里修复它。我已经使用NuGet安装程序安装了SignalR。

有人知道怎么解决这个问题吗？

Could not load file or assembly 'Microsoft.Owin.Host.SystemWeb, Version=0.10.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. 
Exception Details: System.IO.FileLoadException: Could not load file or assembly 'Microsoft.Owin.Host.SystemWeb, Version=0.10.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)
Source Error: 

Line 35:         protected void Session_Start(Object sender, EventArgs e)
Line 36:         {
Line 37:   RouteTable.Routes.MapHubs();
Line 38:         }
Line 39:     }

未捕获的类型错误：无法读取未定义信号R_test.html:35 的属性"client"

  <!--Script references. -->
    <script src="../Scripts/jquery-1.9.1.js"></script>
    <script src="../Scripts/jquery.signalR-1.0.0-rc1.js"></script>
    <script src="../Scripts/jquery.signalR-1.0.0-rc1.min.js"></script>
    <!--Reference the autogenerated SignalR hub script. -->
    <script src="/signalr/hubs"></script>
    <!--Add script to update the page and send messages.-->
    <script type="text/javascript">
        $(function () {
            // Declare a proxy to reference the hub. 
            var chat = $.connection.CollaboratorHub;
            // Create a function that the hub can call to broadcast messages.
            chat.client.broadcastMessage = function (name, message) {
                // Html encode display name and message.

--包裹。

<packages>
  <package id="EntityFramework" version="5.0.0" targetFramework="net45" />
  <package id="jQuery" version="1.8.2" targetFramework="net45" />
  <package id="jQuery.UI.Combined" version="1.8.11" targetFramework="net45" />
  <package id="jQuery.Validation" version="1.9.0.1" targetFramework="net45" />
  <package id="knockoutjs" version="2.1.0" targetFramework="net45" />
  <package id="Microsoft.AspNet.Mvc" version="4.0.20710.0" targetFramework="net45" />
  <package id="Microsoft.AspNet.Providers.Core" version="1.0" targetFramework="net45" />
  <package id="Microsoft.AspNet.Providers.LocalDB" version="1.0" targetFramework="net45" />
  <package id="Microsoft.AspNet.Razor" version="2.0.20710.0" targetFramework="net45" />
  <package id="Microsoft.AspNet.SignalR" version="1.0.0-rc1" targetFramework="net45" />
  <package id="Microsoft.AspNet.SignalR.Core" version="1.0.0-rc1" targetFramework="net45" />
  <package id="Microsoft.AspNet.SignalR.JS" version="1.0.0-rc1" targetFramework="net45" />
  <package id="Microsoft.AspNet.SignalR.Owin" version="1.0.0-rc1" targetFramework="net45" />
  <package id="Microsoft.AspNet.SignalR.SystemWeb" version="1.0.0-rc1" targetFramework="net45" />
  <package id="Microsoft.AspNet.Web.Optimization" version="1.0.0" targetFramework="net45" />
  <package id="Microsoft.AspNet.WebApi" version="4.0.20505.0" targetFramework="net45" />
  <package id="Microsoft.AspNet.WebApi.Client" version="4.0.20710.0" targetFramework="net45" />
  <package id="Microsoft.AspNet.WebApi.Core" version="4.0.20710.0" targetFramework="net45" />
  <package id="Microsoft.AspNet.WebApi.WebHost" version="4.0.20710.0" targetFramework="net45" />
  <package id="Microsoft.AspNet.WebPages" version="2.0.20710.0" targetFramework="net45" />
  <package id="Microsoft.jQuery.Unobtrusive.Ajax" version="2.0.20505.0" targetFramework="net45" />
  <package id="Microsoft.jQuery.Unobtrusive.Validation" version="2.0.20505.0" targetFramework="net45" />
  <package id="Microsoft.Net.Http" version="2.0.20710.0" targetFramework="net45" />
  <package id="Microsoft.Owin.Host.SystemWeb" version="1.0.0-rc1" targetFramework="net45" />
  <package id="Microsoft.Web.Infrastructure" version="1.0.0.0" targetFramework="net45" />
  <package id="Modernizr" version="2.6.2" targetFramework="net45" />
  <package id="Newtonsoft.Json" version="4.5.9" targetFramework="net45" />
  <package id="Owin" version="1.0" targetFramework="net45" />
  <package id="WebGrease" version="1.1.0" targetFramework="net45" />
</packages>

使用位置：AlumCloud

SignalR和c#导致版本错误

对我来说，问题似乎是您使用的某个程序集希望依赖特定版本的Microsoft.Owin.Host.SystemWeb：即X版本，但加载的Microsoft.Ovin.Host.SystemsWeb版本是Y版本。默认情况下，CLR会为此引发错误。

您可以通过确保一致使用一个版本（例如X）并且所有依赖程序集都引用该版本来解决此问题。

您可能需要查看ildasm/reflector中的所有程序集，以了解它们试图加载的确切版本。

或者，您可以尝试通过使用程序集绑定重定向来强制CLR接受不同的程序集版本，该重定向对CLR说"当某个程序集要求版本X时加载版本Y"。即使你尝试这样做，你的应用程序也只有在程序集公共界面没有更改的情况下才能成功。

（注意1，我无法从你的问题中判断它是在哪里找到Microsoft.Owin.Host.Systemweb的，但由于缺乏进一步的信息，我认为它是应用程序bin文件夹，它不会影响答案，但它确实妨碍了调试版本不匹配。）

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