I observed an interesting scenerio in my machine. I have the following configuration:

<setting name="ContentSearch.Solr.ServiceBaseAddress" value="http://localhost:8983/solr" />

Now, If I go to Content Editor, I am getting the following error:

Value cannot be null. Parameter name: fieldNameTranslator

But, if I go to Control Panel to build index, I could see all the indexes.

Now if I change the value from http://localhost:8983/solr to http://localhost:8983/solr/ ( just observe that I added "/" ) in the end, I am not getting any Content Editor errors, however, I could not see any indexes in control panel to rebuild index.

Anybody faced similar issue?

  • Do you see any issues in your logs on the SOLR site? Any Cores in your local folder that have the same name in core.properties folder? I created a blog for issues I ran into with SOLR recently. I saw the same error. sitecorerunner.com/2017/10/27/…
    – RReilley
    Nov 2, 2017 at 15:49

1 Answer 1


The issue got resolved. I found out that some cores are missing in Solr. Once I created them, it started working. To add more details, In Sitecore logs I found that it is looking for the following cores : social_messages_web social_messages_master

I Manually added the cores to "solr-6.6.0-0\apache-solr\server\solr" That resolved the issue.

  • Yep I have run into that issue too.
    – RReilley
    Nov 2, 2017 at 17:50
  • 1
    Any chance you could provide a little more detail about what the core was called (or example) and how you addressed it? Nov 2, 2017 at 21:05
  • After your fix you use url without "/"? Nov 3, 2017 at 8:20
  • Yes, after fixing the issue I an using url without "/"
    – tpkphani
    Nov 6, 2017 at 6:22

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