Sdk: Unhandled Exception: System.IO.FileLoadException: Could not load file or assembl y 'Microsoft.Extensions.Primitives

[jindovu]

Hi Guys,
I running project with command line "dotnet run" it's throw error and I don't know why please let's me know how to resolve this problem, thanks

Full ERROR

Unhandled Exception: System.IO.FileLoadException: Could not load file or assembl
y 'Microsoft.Extensions.Primitives, Version=1.1.0.0, Culture=neutral, PublicKeyT
oken=adb9793829ddae60' or one of its dependencies. The located assembly's manife
st definition does not match the assembly reference. (Exception from HRESULT: 0x
80131040) ---> System.IO.FileLoadException: Could not load file or assembly 'Microsoft.Extensions.Primitives, Version=1.0.0.0, Culture=neutral, PublicKeyToken=a
db9793829ddae60' or one of its dependencies. The located assembly's manifest def
inition does not match the assembly reference. (Exception from HRESULT: 0x801310
40)
--- End of inner exception stack trace ---
at Microsoft.Extensions.Configuration.ConfigurationBuilder.Build()
at Microsoft.AspNetCore.Hosting.WebHostBuilder..ctor()
at WBS.BackEnd.Program.Main(String[] args) in D:\1.Coding\StartUp\WBS\3. Sour
ce Code\WBS.Solution\src\WBS.BackEnd\Program.cs:line 10

Environment data

dotnet --info output:
Product Information:
Version: 1.0.0-preview1-002702
Commit Sha: 6cde21225e

Runtime Environment:
OS Name: Windows
OS Version: 6.2.9200
OS Platform: Windows
RID: win8-x64

Project.json

"dependencies": {
"Microsoft.AspNetCore.Diagnostics": "1.0.0-rc2-final",
"Microsoft.AspNetCore.Mvc": "1.0.0-rc2-final",
"Microsoft.AspNetCore.Razor.Tools": {
"version": "1.0.0-preview1-final",
"type": "build"
},
"Microsoft.AspNetCore.Server.IISIntegration": "1.0.0-rc2-final",
"Microsoft.AspNetCore.Server.Kestrel": "1.0.0-rc2-final",
"Microsoft.AspNetCore.StaticFiles": "1.0.0-rc2-final",
"Microsoft.Extensions.Configuration.EnvironmentVariables": "1.0.0-rc2-final",
"Microsoft.Extensions.Configuration.Json": "1.0.0-rc2-final",
"Microsoft.Extensions.Logging": "1.0.0-rc2-final",
"Microsoft.Extensions.Logging.Console": "1.0.0-rc2-final",
"Microsoft.Extensions.Logging.Debug": "1.0.0-rc2-final",
"Microsoft.VisualStudio.Web.BrowserLink.Loader": "14.0.0-rc2-final",
"MongoDB.Driver": "2.2.4",
"AngularJS.Animate": "1.5.5",
"WBS.Common": "1.0.0-_",
"WBS.Entities": "1.0.0-_",
"WBS.Service": "1.0.0-*",
"Microsoft.Extensions.Options.ConfigurationExtensions": "1.0.0-rc2-final",
"Microsoft.Extensions.DependencyInjection": "1.0.0-rc2-final",
"System.IdentityModel.Tokens": "5.0.0-rc1-211161024",
"System.IdentityModel.Tokens.Jwt": "5.0.0-rc2-305061149",
"Microsoft.Framework.DependencyInjection.Abstractions": "1.0.0-beta8",
"Microsoft.AspNetCore.Authentication.JwtBearer": "1.0.0-rc2-final",
"Microsoft.AspNetCore.Cors": "1.0.0-rc2-final",
"Microsoft.Owin.Security.Jwt": "3.0.1",
"Microsoft.AspNetCore.Authentication.Cookies": "1.0.0-rc2-final"
},

[svick]

It looks like you're using mostly RC2 libraries, could you try upgrading all your dependencies to release versions?

If a library does not have a release version (like Microsoft.Framework.DependencyInjection.Abstractions), I think that means the library got renamed (in this case, to Microsoft.Extensions.DependencyInjection.Abstractions) and you should use the renamed library instead.

[jindovu]

Hi svick
I deleted folder bin, obj and restart my computer, it's working ok now, I don't know why occur problem
Thank you for your help

[brthor]

Glad this got resolved :smile:

Please reopen if you hit this issue again.

[ArturKarbone]

deleting bin. helped me as well

[blackhill]

Yes, deleting the bin folder fixed the issue. Thanks for sharing

[shahabganji]

I get the same error when using services.AddSignalR();
I have no idea why, and by deleting bin and obj folders I still have the same error.

full error description :

Unhandled Exception: System.IO.FileLoadException: Could not load file or assembly 'Microsoft.Extensions.Options, Version=1.2.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60'. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)
   at Microsoft.Extensions.DependencyInjection.SignalRDependencyInjectionExtensions.AddSignalR(IServiceCollection services)
   at signalR_test.Startup.ConfigureServices(IServiceCollection services) in c:\Users\s.ganji\Desktop\signalR_test\Startup.cs:line 34
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at Microsoft.AspNetCore.Hosting.ConventionBasedStartup.ConfigureServices(IServiceCollection services)
   at Microsoft.AspNetCore.Hosting.Internal.WebHost.EnsureApplicationServices()
   at Microsoft.AspNetCore.Hosting.Internal.WebHost.BuildApplication()
   at Microsoft.AspNetCore.Hosting.WebHostBuilder.Build()
   at signalR_test.Program.Main(String[] args) in c:\Users\s.ganji\Desktop\signalR_test\Program.cs:line 20

dependencies section of project.json :

"dependencies": {
    "Microsoft.NETCore.App": {
      "version": "1.1.0",
      "type": "platform"
    },
    "Microsoft.AspNetCore.Diagnostics": "1.1.0",
    "Microsoft.AspNetCore.Mvc": "1.1.0",
    "Microsoft.AspNetCore.Razor.Tools": {
      "version": "1.1.0-preview4-final",
      "type": "build"
    },
    "Microsoft.AspNetCore.Routing": "1.1.0",
    "Microsoft.AspNetCore.Server.IISIntegration": "1.1.0",
    "Microsoft.AspNetCore.Server.Kestrel": "1.1.0",
    "Microsoft.AspNetCore.StaticFiles": "1.1.0",
    "Microsoft.Extensions.Configuration.EnvironmentVariables": "1.1.0",
    "Microsoft.Extensions.Configuration.Json": "1.1.0",
    "Microsoft.Extensions.Configuration.CommandLine": "1.1.0",
    "Microsoft.Extensions.Logging": "1.1.0",
    "Microsoft.Extensions.Logging.Console": "1.1.0",
    "Microsoft.Extensions.Logging.Debug": "1.1.0",
    "Microsoft.Extensions.Options.ConfigurationExtensions": "1.1.0",
    "Microsoft.VisualStudio.Web.BrowserLink.Loader": "14.1.0" , 

    "Microsoft.Extensions.Options": "1.1.0" , 

    "Microsoft.AspNetCore.SignalR": "1.0.0-*"

  }

[davidfowl]

SignalR hasn't shipped and depends on newer things. You can't use it with 1.1.* or 1.0.0*.

[shahabganji]

By changing "Microsoft.Extensions.Options.ConfigurationExtensions": "1.1.0" to "Microsoft.Extensions.Options.ConfigurationExtensions": "1.2.0-*" the problem solved, ithink I need to change all related dependencies of SignalRCore to version 1.2.0-*

[prashit]

@shahabganji , this helped. Problem was specifically with version of "Microsoft.AspNetCore.Routing" but good to update all.

[hpahuja]

Yes. deleting the bin folder worked fine for as well.

[StefanoChiodino]

In my case deleting bin didn't work. One of the projects imported as dep used MVC.Core 1.1.1 while the rest used MVC 1.1.2, had to upgrade it!

+    <PackageReference Include="Microsoft.AspNetCore.Mvc" Version="1.1.2" />
-    <PackageReference Include="Microsoft.AspNetCore.Mvc.Core" Version="1.1.1" />