I am using Sitecore 8.2 update 5.
Now switching from Lucene to Solr 6.6.3 using the steps mentioned in https://sitecorerockz.wordpress.com/2018/08/01/lucene-to-solr/
I created a diagnostic page to check if Solr is working or not, I got the below error (screenshot) :
Exception Details: Ninject.ActivationException: Error activating ISolrOperations{Dictionary{string, Object}}
No matching bindings are available, and the type is not self-bindable.
Activation path:
1) Request for ISolrOperations{Dictionary{string, Object}}
Suggestions:
1) Ensure that you have defined a binding for ISolrOperations{Dictionary{string, Object}}.
2) If the binding was defined in a module, ensure that the module has been loaded into the kernel.
3) Ensure you have not accidentally created more than one kernel.
4) If you are using constructor arguments, ensure that the parameter name matches the constructors parameter name.
5) If you are using automatic module loading, ensure the search path and filters are correct.
Source Error :
protected override object DoGetInstance(Type serviceType, string key) {
return _kernel.Get(serviceType, key);
}