I recently encountered a strange problem while trying to bind a SQL Server 2016 instance to Microsoft R Server 9.1. On running the below command:
I got the error:
An unexpected error has occurred: Value cannot be null. Parameter name: input
I had a hunch that this was related to an 'orphaned' pre-release SQL Server 2017 instance which I had previously installed and manually deleted. I found some registry keys related to that (non-existent) instance and deleted those. But SQLBindR was still erroring out:
sqlbindR /list An unexpected error has occurred: Version string portion was too short or too long
I finally figured out that there was still an entry for the "non-existent" SQL instance at the registry key HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft SQL Server\Instance Names\SQL. There was a value (on the right hand pane when viewed in RegEdit) for that old instance. When I deleted that value for the non-existent SQL instance, I was able to run SQLBindR successfully!
Please note this troubleshooting tip is intended for non-production systems and for advanced users. If you have questions or concerns, or this error is happening on a production system, I strongly recommend you contact Microsoft Support.