Web API in MVC 6 'IServiceCollection' error

[chowlouise]

In my start up class for Web API in MVC 6, i have the following

public void ConfigureServices(IServiceCollection services)
{
services.AddMvc();
}

And I have this error :

The type 'IServiceCollection' exists in both 'Microsoft.Framework.DependencyInjection.IServiceCollection, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null' and 'Microsoft.Framework.DependencyInjection.Interfaces, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null'

May i know how can resolve this?

[davidfowl]

What version of the KRE and MVC are you using?

[chowlouise]

'KRE-CLR-x86.1.0.0-beta2' and "Microsoft.AspNet.Mvc": "6.0.0-beta2"

[davidfowl]

Put a repro somewhere.

[chowlouise]

sorry may i know what is put a repro?

[chowlouise]

you want me to upload my code right?

[Eilon]

Yep. If you can put your app up in a GitHub repo or something we can take a look.

[chowlouise]

hi , the problem happened after i upgraded to Visual Studio 2015 CTP 6. This error only exists in my project created in previous version. i have a quick check just now and when i change the following inside project.json
from "Microsoft.AspNet.Server.IIS": "1.0.0-beta2" to "Microsoft.AspNet.Server.IIS": "1.0.0-beta3", and now my error gone. thank you everyone for the replies.

[Eilon]

Yup, gotta keep all the versions consistent. It's a bit of a pain during pre-release but once 1.0.0 RTM is out the pain should go away 😄