Question

我正在使用Visual Studio 2015专业版的Xamarin为Android创建聊天应用程序。我想为SignalR生成的代理创建一个物理文件，在这里描述：SignalR Hubs API Guide 如上所述，我安装 Microsoft.AspNet.SignalR.Utils NuGet包。我试过了：

signalr.exe ghp /path:"D:\WORKS\VISUALSTUDIO\ASPWEBSITE\ServerSignalR_ChatHub\ServerSignalR_ChatHub\bin"

但它始终给出以下错误：

SignalR Utility Version: 2.2.1.0
Creating temp directory C:\Users\vivek\AppData\Local\Temp\aeb9348c-3f99-4537-bed7-7313b3c4bcbe

Warning: Could not load file or assembly 'Microsoft.DiaSymReader.Native.amd64.dll' or one of its dependencies. The module was expected to contain an assembly manifest.


Warning: Could not load file or assembly 'Microsoft.DiaSymReader.Native.x86.dll' or one of its dependencies. The module was expected to contain an assembly manifest.


Warning: Could not load file or assembly 'Microsoft.DiaSymReader.Native.amd64.dll' or one of its dependencies. The module was expected to contain an assembly manifest.


Warning: Could not load file or assembly 'Microsoft.DiaSymReader.Native.x86.dll' or one of its dependencies. The module was expected to contain an assembly manifest.


Error: System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.IO.FileLoadException: Could not load file or assembly 'Newtonsoft.Json, Version=6.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)
   at Microsoft.AspNet.SignalR.DefaultDependencyResolver.RegisterDefaultServices()
   at Microsoft.AspNet.SignalR.DefaultDependencyResolver..ctor()
   --- End of inner exception stack trace ---

Server stack trace:
   at System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean publicOnly, Boolean noCheck, Boolean& canBeCached, RuntimeMethodHandleInternal& ctor, Boolean& bNeedSecurityCheck)
   at System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean skipCheckThis, Boolean fillCache, StackCrawlMark& stackMark)
   at System.Activator.CreateInstance(Type type, Boolean nonPublic)
   at System.Activator.CreateInstance(Type type)
   at Microsoft.AspNet.SignalR.Utils.GenerateHubProxyCommand.JavaScriptGenerator.GenerateProxy(String path, String url, Action`1 warning)
   at System.Runtime.Remoting.Messaging.StackBuilderSink._PrivateProcessMessage(IntPtr md, Object[] args, Object server, Object[]& outArgs)
   at System.Runtime.Remoting.Messaging.StackBuilderSink.SyncProcessMessage(IMessage msg)

Exception rethrown at [0]:
   at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
   at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
   at Microsoft.AspNet.SignalR.Utils.GenerateHubProxyCommand.JavaScriptGenerator.GenerateProxy(String path, String url, Action`1 warning)
   at Microsoft.AspNet.SignalR.Utils.GenerateHubProxyCommand.OutputHubs(String path, String url, String outputPath)
   at Microsoft.AspNet.SignalR.Utils.GenerateHubProxyCommand.Execute(String[] args)
   at Microsoft.AspNet.SignalR.Utils.Program.Main(String[] args)

也尝试过：

signalr.exe ghp /assembly:"D:\WORKS\VISUALSTUDIO\ASPWEBSITE\ServerSignalR_ChatHub\ServerSignalR_ChatHub\bin\ServerSignalR_ChatHub.dll"

它生成空的server.js文件

我做错了什么或错过了什么？

Answer 1

哦，伙计......经过大量的研究和尝试，我终于找到了答案。在错误中：

它说，无法加载程序集Newtonsoft.Json，Version = 6.0.0.0 。但我有版本= 9.0.0.0 所以我只是强制卸载它并以最小依赖版本= 6.0.0.0安装它（在我的情况下，它依赖于SignalR.Core.dll（v2.2.1））。

uninstall-package newtonsoft.json -force

install-package newtonsoft.json -version "6.0.4"

然后运行：

signalr.exe ghp /path:"D:\WORKS\<path>\ServerSignalR_ChatHub\bin"

它成功生成了server.js !!

Answer 2

我想我将在Visual Studio中的项目属性“ Build Events”下添加使用“ pre-build event命令行”的解决方案。我没有使用程序的已安装软件包（否则可以正常运行），而是将旧的NewtonSoft文件的副本放在“解决方案文件夹”级别的“ OldNewton”目录中。我注意到SignalR.Utils可执行文件的安装目录。然后，我编写了一些命令脚本，以切换到bin文件夹，复制到旧的NewtonSoft文件和Utils文件中，执行signalR ghp命令创建中心脚本，然后将文件复制到我想要的位置。我还添加了一些清理命令和一些命令来备份/还原任何现有的NewtonSoft文件。您可能需要将SignalR.Utils文件复制到OldNewton文件旁边的其自己的目录中，以防软件包被更新。我认为它看起来要复杂得多。您可以删除echo命令，甚至可能删除backup和cleanup命令以使其更短。有几种方法可以完成此操作，但这是我选择执行此操作的方式。

cd $(TargetDir)
@echo Creating backup
if not exist backup\nul mkdir backup
if exist backup del backup\*.* /q /f
if exist Newton*.* move Newton*.* backup\*.* /q /f 
@Echo Copying in the Signal R files
copy "$(SolutionDir)packages\Microsoft.AspNet.SignalR.Utils.2.4.1\tools\net40" .
@Echo Copying in the old NewtonSoft files
copy $(SolutionDir)OldNewton\*.* .
@Echo Creating the hub script: signalr ghp /path:$(TargetDir)
signalr ghp /path:$(TargetDir)
@Echo moving hub file to where I want it: move /Y server.js "$(ProjectDir)scripts\app\srFreedomHub.js" 
move /Y server.js "$(ProjectDir)scripts\app\srFreedomHub.js" 
@echo remove the signalR util files and old Newton Files
del signalr.* /q /f
del Newton*.* /q /f
@echo Restore the backup folder files
if exist backup\Newton*.* move backup\*.* .
@echo Remove the backup folder
if exist backup\nul rmdir backup /S /Q

signalr在创建server.js文件时生成错误

2 个答案: