Sitecore MVC Unity Solr issue - model-view-controller

Question

I am new to Sitecore,SoleNet. I have installed and configured Solr to work with Sitecore and I am able to see results.
I am now using code.
I added the connection string to UnityMVCActivator.cs in the Start()
Startup.Init("http://localhost:8983/solr/sitecore_web_index");
In my controller - Actionresults Index()
var solr = ServiceLocator.Current.GetInstance>();
I get this error
[InvalidOperationException: The type ISolrOperations1 does not have an
accessible constructor.]
Microsoft.Practices.ObjectBuilder2.DynamicMethodConstructorStrategy.ThrowForNullExistingObject(IBuilderContext
context) +226 lambda_method(Closure , IBuilderContext ) +39
Microsoft.Practices.ObjectBuilder2.<>c__DisplayClass1.b__0(IBuilderContext
context) +33
Microsoft.Practices.ObjectBuilder2.BuildPlanStrategy.PreBuildUp(IBuilderContext
context) +337
Microsoft.Practices.ObjectBuilder2.StrategyChain.ExecuteBuildUp(IBuilderContext
context) +396 Microsoft.Practices.Unity.UnityContainer.DoBuildUp(Type
t, Object existing, String name, IEnumerable1 resolverOverrides) +238
[ResolutionFailedException: Resolution of the dependency failed, type
= "SolrNet.ISolrOperations`1[Niddk.Model.SearchResultsViewModel]", name = "(none)". Exception occurred while: while resolving.
Exception is: InvalidOperationException - The type ISolrOperations`1 does not have an accessible constructor.
At the time of the exception, the container was:
Resolving
SolrNet.ISolrOperations1[Niddk.Model.SearchResultsViewModel],(none) ]
Microsoft.Practices.Unity.UnityContainer.DoBuildUp(Type t, Object
existing, String name, IEnumerable1 resolverOverrides) +500
Microsoft.Practices.Unity.UnityContainer.Resolve(Type t, String name,
ResolverOverride[] resolverOverrides) +20
Microsoft.Practices.ServiceLocation.ServiceLocatorImplBase.GetInstance(Type
serviceType, String key) +55
[ActivationException: Activation error occured while trying to get
instance of type ISolrOperations1, key ""]
Microsoft.Practices.ServiceLocation.ServiceLocatorImplBase.GetInstance(Type
serviceType, String key) +156
Microsoft.Practices.ServiceLocation.ServiceLocatorImplBase.GetInstance()
+62 Niddk.Web.Controllers.SearchController.Index() in C:\Users\ksivanandan\Source\Repos\web\Niddk\Niddk.Web\Controllers\SearchController.cs:23
lambda_method(Closure , ControllerBase , Object[] ) +87
System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext
controllerContext, IDictionary2 parameters) +229
System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext
controllerContext, ActionDescriptor actionDescriptor, IDictionary2
parameters) +35
System.Web.Mvc.<>c__DisplayClass15.b__12()
+80 System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter
filter, ActionExecutingContext preContext, Func1 continuation) +453
System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter
filter, ActionExecutingContext preContext, Func`1 continuation) +453
System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext
controllerContext, String actionName) +533
My ViewModel
public class SearchResultsViewModel
{
[SolrField("headline_t")]
public string Headline { get; set; }
}
Any help is greatly appreciated.
Thank you!

Answer 1

Edit: this thread was also raised in GitHub in SolrNet and the project maintainer provided the right answer.
The problem is that for registering he is using the built in IoC but then resolving via Unity.
Original response
I may be reading your code wrong or something might be missing from the post but you are not passing the type:
In my controller - Actionresults Index()
var solr = ServiceLocator.Current.GetInstance<[you are missing this part]>();
When using generics you need to specify the type. I thinks this part would not even compile because of the .GetInstance>() being incomplete.