How can I use SXA and SOLR together?

Question

I've installed Sitecore 8.2 Original release, and then Ran the Sitecore Powershell Extensions-4.3 for Sitecore 8 and the Sitecore Experience Accelerator 1.2 rev. 161216 onto the instance. That all seems to work just fine. However, the problem comes when I convert my site to run on SOLR. As soon as I do this I get a SOLR Error. Here's what I get:

Server Error in '/' Application.

Could not create instance of type: Sitecore.XA.Foundation.Search.Providers.Solr.SolrSearchIndex. No matching constructor was found.

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: Sitecore.Exceptions.ConfigurationException: Could not create instance of type: Sitecore.XA.Foundation.Search.Providers.Solr.SolrSearchIndex. No matching constructor was found.

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.

Stack Trace: 


[ConfigurationException: Could not create instance of type: Sitecore.XA.Foundation.Search.Providers.Solr.SolrSearchIndex. No matching constructor was found.]
   Sitecore.Configuration.DefaultFactory.CreateFromTypeName(XmlNode configNode, String[] parameters, Boolean assert) +291
   Sitecore.Configuration.DefaultFactory.CreateObject(XmlNode configNode, String[] parameters, Boolean assert, IFactoryHelper helper) +165
   Sitecore.Configuration.DefaultFactory.CreateObject(XmlNode configNode, String[] parameters, Boolean assert) +72
   Sitecore.Configuration.DefaultFactory.GetInnerObject(XmlNode paramNode, String[] parameters, Boolean assert) +932
   Sitecore.Configuration.DefaultFactory.AssignProperties(XmlNode configNode, String[] parameters, Object obj, Boolean assert, Boolean deferred, IFactoryHelper helper) +560
   Sitecore.Configuration.DefaultFactory.CreateObject(XmlNode configNode, String[] parameters, Boolean assert, IFactoryHelper helper) +322
   Sitecore.Configuration.DefaultFactory.CreateObject(XmlNode configNode, String[] parameters, Boolean assert) +72
   Sitecore.Configuration.DefaultFactory.CreateObject(String configPath, String[] parameters, Boolean assert) +619
   Sitecore.ContentSearch.ContentSearchManager.get_SearchConfiguration() +266
   Sitecore.ContentSearch.SolrProvider.SolrContentSearchManager.get_Cores() +92
   Sitecore.ContentSearch.SolrProvider.SolrNetIntegration.DefaultSolrStartUp.Initialize() +255
   (Object , Object[] ) +71
   Sitecore.Pipelines.CorePipeline.Run(PipelineArgs args) +484
   Sitecore.Pipelines.DefaultCorePipelineManager.Run(String pipelineName, PipelineArgs args, String pipelineDomain) +22
   Sitecore.Nexus.Web.HttpModule.Application_Start() +259
   Sitecore.Nexus.Web.HttpModule.Init(HttpApplication app) +704
   System.Web.HttpApplication.RegisterEventSubscriptionsWithIIS(IntPtr appContext, HttpContext context, MethodInfo[] handlers) +618
   System.Web.HttpApplication.InitSpecial(HttpApplicationState state, MethodInfo[] handlers, IntPtr appContext, HttpContext context) +172
   System.Web.HttpApplicationFactory.GetSpecialApplicationInstance(IntPtr appContext, HttpContext context) +402
   System.Web.Hosting.PipelineRuntime.InitializeApplication(IntPtr appContext) +343

[HttpException (0x80004005): Could not create instance of type: Sitecore.XA.Foundation.Search.Providers.Solr.SolrSearchIndex. No matching constructor was found.]
   System.Web.HttpRuntime.FirstRequestInit(HttpContext context) +579
   System.Web.HttpRuntime.EnsureFirstRequestInit(HttpContext context) +112
   System.Web.HttpRuntime.ProcessRequestNotificationPrivate(IIS7WorkerRequest wr, HttpContext context) +712

If I switch back to Lucene, everything works fine. However, my production environment (and my test environments) are all SOLR, so I need to be able to use SXA in a SOLR environment. What am I missing?

Answer 1

The problem could be that the Powershell script which is enabling all Solr configuration files. You have to be careful because if you are using a regex for that (all files which name contains "Solr") then it is also enabling Sitecore.ContentSearch.SolrCloud.SwitchOnRebuild.config.exam‌​ple. This should be disabled if you did not configure it.

Answer 2

The Could not create instance of type: Sitecore.XA.Foundation.Search.Providers.Solr.SolrSearchIndex. No matching constructor was found. means that there SXA Solr Provider configuration file contains:

• configuration of an index which doesn't exist (in most cases this is the case as we ship just an example Solr configuration file)
• configuration of and index with wrong number of constructor parameters

I would suggest to go one by one and remove indexes from Sitecore.XA.Foundation.Search.Solr.config configuration file and check if this will help.