搜索后我尝试过的事情:

in Web.Config put a binding on the old version: <dependentAssembly> <assemblyIdentity name="Newtonsoft.Json" publicKeyToken="30ad4fe6b2a6aeed" culture="neutral" /> <bindingRedirect oldVersion="0.0.0.0-6.0.0.0" newVersion="6.0.1.0" /> </dependentAssembly> Edit my .csproj file to make sure there is only one Newtonsoft reference <Reference Include="Newtonsoft.Json, Version=6.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL"> <HintPath>..\packages\Newtonsoft.Json.6.0.1\lib\net45\Newtonsoft.Json.dll</HintPath> <SpecificVersion>False</SpecificVersion> <Private>True</Private> </Reference> Search my computer for every Newtonsoft.Json.dll and delete every non 6.0.1 version and delete the contents of my temp folder Repair/Reinstall the package in nuget manager console

它成功构建,但在访问站点时得到错误。

EDIT

好吧,然后我尝试重新安装每个nuget包,它似乎已经添加了4.5版本的newtonsoft.json.dll,但我得到了同样的错误。我的项目的目标框架是。net 4.5.1,这里是我现在得到的堆栈跟踪:

Server Error in '/' Application. Could not load file or assembly Newtonsoft.Json 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 Newtonsoft.Json or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040) Source Error: An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below. Assembly Load Trace: The following information can be helpful to determine why the assembly Newtonsoft.Json could not be loaded.

=== Pre-bind state information ===
LOG: DisplayName = Newtonsoft.Json
(Partial)
WRN: Partial binding information was supplied for an assembly:
WRN: Assembly Name: Newtonsoft.Json | Domain ID: 2
WRN: A partial bind occurs when only part of the assembly display name is provided.
WRN: This might result in the binder loading an incorrect assembly.
WRN: It is recommended to provide a fully specified textual identity for the assembly,
WRN: that consists of the simple name, version, culture, and public key token.
WRN: See whitepaper http://go.microsoft.com/fwlink/?LinkId=109270 for more information and common solutions to this issue.
LOG: Appbase = file:///c:/users/user/documents/visual studio 2013/Projects/foo/bar/
LOG: Initial PrivatePath = c:\users\user\documents\visual studio 2013\Projects\foo\bar\bin
Calling assembly : (Unknown).
 ===
LOG: This bind starts in default load context.
LOG: Using application configuration file: c:\users\user\documents\visual studio 2013\Projects\foo\bar\web.config
LOG: Using host configuration file: C:\Users\user\Documents\IISExpress\config\aspnet.config
LOG: Using machine configuration file from C:\Windows\Microsoft.NET\Framework\v4.0.30319\config\machine.config.
LOG: Policy not being applied to reference at this time (private, custom, partial, or location-based assembly bind).
LOG: Attempting download of new URL file:///C:/Users/user/AppData/Local/Temp/1/Temporary ASP.NET Files/root/48686d37/9d7a6572/Newtonsoft.Json.DLL.
LOG: Attempting download of new URL file:///C:/Users/user/AppData/Local/Temp/1/Temporary ASP.NET Files/root/48686d37/9d7a6572/Newtonsoft.Json/Newtonsoft.Json.DLL.
LOG: Attempting download of new URL file:///c:/users/user/documents/visual studio 2013/Projects/foo/bar/bin/Newtonsoft.Json.DLL.
LOG: Using application configuration file: c:\users\user\documents\visual studio 2013\Projects\foo\bar\web.config
LOG: Using host configuration file: C:\Users\user\Documents\IISExpress\config\aspnet.config
LOG: Using machine configuration file from C:\Windows\Microsoft.NET\Framework\v4.0.30319\config\machine.config.
LOG: Redirect found in application configuration file: 4.5.0.0 redirected to 6.0.1.0.
LOG: Post-policy reference: Newtonsoft.Json, Version=6.0.1.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed
LOG: Attempting download of new URL file:///C:/Users/user/AppData/Local/Temp/1/Temporary ASP.NET Files/root/48686d37/9d7a6572/Newtonsoft.Json.DLL.
LOG: Attempting download of new URL file:///C:/Users/user/AppData/Local/Temp/1/Temporary ASP.NET Files/root/48686d37/9d7a6572/Newtonsoft.Json/Newtonsoft.Json.DLL.
LOG: Attempting download of new URL file:///c:/users/user/documents/visual studio 2013/Projects/foo/bar/bin/Newtonsoft.Json.DLL.
WRN: Comparing the assembly name resulted in the mismatch: Major Version
ERR: Failed to complete setup of assembly (hr = 0x80131040). Probing terminated.

堆栈跟踪:

[FileLoadException: Could not load file or assembly 'Newtonsoft.Json' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)]

[FileLoadException: Could not load file or assembly 'Newtonsoft.Json, Version=6.0.1.0, 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)]
       System.Reflection.RuntimeAssembly._nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, RuntimeAssembly locationHint, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks) +0
       System.Reflection.RuntimeAssembly.nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, RuntimeAssembly locationHint, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks) +34
       System.Reflection.RuntimeAssembly.InternalLoadAssemblyName(AssemblyName assemblyRef, Evidence assemblySecurity, RuntimeAssembly reqAssembly, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks) +152
       System.Reflection.RuntimeAssembly.InternalLoad(String assemblyString, Evidence assemblySecurity, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean forIntrospection) +77
       System.Reflection.RuntimeAssembly.InternalLoad(String assemblyString, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection) +16
       System.Reflection.Assembly.Load(String assemblyString) +28
       System.Web.Configuration.CompilationSection.LoadAssemblyHelper(String assemblyName, Boolean starDirective) +38

[ConfigurationErrorsException: Could not load file or assembly 'Newtonsoft.Json, Version=6.0.1.0, 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)]
       System.Web.Configuration.CompilationSection.LoadAssemblyHelper(String assemblyName, Boolean starDirective) +752
       System.Web.Configuration.CompilationSection.LoadAllAssembliesFromAppDomainBinDirectory() +218
       System.Web.Configuration.CompilationSection.LoadAssembly(AssemblyInfo ai) +130
        System.Web.Compilation.BuildManager.GetReferencedAssemblies(CompilationSection compConfig) +170
       System.Web.Compilation.BuildManager.GetPreStartInitMethodsFromReferencedAssemblies() +91
       System.Web.Compilation.BuildManager.CallPreStartInitMethods(String preStartInitListPath, Boolean& isRefAssemblyLoaded) +285
       System.Web.Compilation.BuildManager.ExecutePreAppStart() +153
       System.Web.Hosting.HostingEnvironment.Initialize(ApplicationManager appManager, IApplicationHost appHost, IConfigMapPathFactory configMapPathFactory, HostingEnvironmentParameters hostingParameters, PolicyLevel policyLevel, Exception appDomainCreationException) +516

[HttpException (0x80004005): Could not load file or assembly 'Newtonsoft.Json, Version=6.0.1.0, 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)]
       System.Web.HttpRuntime.FirstRequestInit(HttpContext context) +9913572
       System.Web.HttpRuntime.EnsureFirstRequestInit(HttpContext context) +101
       System.Web.HttpRuntime.ProcessRequestNotificationPrivate(IIS7WorkerRequest wr, HttpContext context) +254

Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.18408

当前回答

我有完全相同的问题和Visual Studio 13默认库为我是4.5,所以我有2个解决方案,一个是拿出这个在webconfig文件中的引用。这是最后的手段,而且确实有效。

错误信息指出此位置/Projects/foo/bar/bin/Newtonsoft.Json.DLL有问题。DLL在哪里!一个基本的属性检查告诉我它是4.5.0.0或类似的,所以我把webconfig修改为4.5并使用4.5。

其他回答

好了,我想现在可以用了。我删除了我机器上所有不是我能找到的最新版本的Newtonsoft.Json.dll,确保我在NuGet中有最新的版本,并构建它,并确保在bin文件夹中是最新的版本,我把更改留在网络上。Config和.csproj. conf文件现在我对另一个错误,所以它必须工作..

简单的步骤。 (1)运行“update-package Newtonsoft”。在包管理器中重新安装。

(2)通过开启查看隐藏文件和删除bin文件夹来删除you bin。

(3)关闭你的视觉工作室并重新打开。

现在再次运行您的项目。 我相信应该没问题

我最近在一个较老的项目中挣扎。

在检查bin文件夹中实际存在的dll版本后,我设法追踪到这个问题。

我有一个后期构建脚本,它将依赖程序集从dll库文件夹复制到bin文件夹。这是nuget之前常见的设置。

所以每次构建后构建脚本时,我都会用旧版本替换正确的Json.net版本

我在一个参考MVC 5项目的测试项目中遇到了同样的问题。这发生在我与一个MVC 5项目合并之后。我通过安装Visual studio 2012更新来解决这个问题,这在Andre的回复中有解释。

在你的视觉工作室转到 工具>扩展和更新 在左侧的手风琴列表中选择“Updates”。 选择“产品更新”。 更新到最新版本

我遇到了这个问题,因为我有:项目A(一个桌面。exe)引用项目B(一个便携式。dll)。A和B有不同版本的JSON。Net,所以有一个加载器冲突。 一旦我让所有版本的JSON.net都一样,它就工作了。(这实际上是上面的一些解决方案正在做的事情-我只是呼吁为什么它有效)