A ‘R’ script error occurred during execution of ‘sp_execute_external_script’ with HRESULT 0x80004004. SQL Server

This post shows you one of the possibilities to fix the above error when you are running R script. Back then I have tested the script runs in SQL Server 2017 when I have posted this https://chanmingman.wordpress.com/2019/03/17/machine-learning-service-in-sql-server-2017/. Somehow I bumped into the error below when I run the script few days ago in SQL Server 2019. The error may not tell the right cause of this.

Msg 39004, Level 16, State 20, Line 5

A ‘R’ script error occurred during execution of ‘sp_execute_external_script’ with HRESULT 0x80004004.

Msg 39019, Level 16, State 2, Line 5

An external script error occurred:

Error in source(revoScriptConnection, encoding = “UTF-8”) :

revoScriptConnection:1:9: unexpected symbol

1: a <- 1 b


Error in execution. Check the output for more information.

Error in eval(ei, envir) :

Error in execution. Check the output for more information.

Calls: runScriptFile -> source -> withVisible -> eval -> eval -> .Call

Execution halted

You need to separate each of the R command in different line like below then the script can still run.


@language =

N’R’, @script =

N’ a <- 1;

b <- 2;

c <- a/b;

d <- a*b;

print(c, d);’

About chanmingman

Since March 2011 Microsoft Live Spaces migrated to Wordpress (http://www.pcworld.com/article/206455/Microsoft_Live_Spaces_Moves_to_WordPress_An_FAQ.html) till now, I have is over 1 million viewers. This blog is about more than 50% telling you how to resolve error messages, especial for Microsoft products. The blog also has a lot of guidance teaching you how to get stated certain Microsoft technologies. The blog also uses as a help to keep my memory. The blog is never meant to give people consulting services or silver bullet solutions. It is a contribution to the community. Thanks for your support over the years. Ming Man is Microsoft MVP since year 2006. He is a software development manager for a multinational company. With 25 years of experience in the IT field, he has developed system using Clipper, COBOL, VB5, VB6, VB.NET, Java and C #. He has been using Visual Studio (.NET) since the Beta back in year 2000. He and the team have developed many projects using .NET platform such as SCM, and HR based applications. He is familiar with the N-Tier design of business application and is also an expert with database experience in MS SQL, Oracle and AS 400.
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