I've previously installed SQL Server 2016, and want to try its R Services. I went through this tutorial and came to Step 2.5, where I had to test connection by this script:
exec sp_execute_external_script @language =N'R',
@script=N'OutputDataSet<-InputDataSet',
@input_data_1 =N'select 1 as hello'
with result sets (([hello] int not null));
go
Error is:
Msg 39021, Level 16, State 1, Line 1
Unable to launch runtime for 'R' script. Please check the configuration of the 'R' runtime.
Msg 39019, Level 16, State 1, Line 1
An external script error occurred:
Unable to launch the runtime. ErrorCode 0x80070490: 1168(Element not found.).
I've googled, and this tutorial states that I have to uninstall and then install RegisterRExt.exe. I did that. Restarted computer and instance services. But error continues to come.
How can I fix it?