SAS Studio Error: SAS could not initialize the R language interface.

[ManuelaVila]

Hi im new in sas and im trying to run an R code in Sas studio:

proc iml;

submit / r;  

x<-y+5

endsubmit;

 I keep getting this error:

ERROR: SAS could not initialize the R language interface.

ERROR: The R_HOME environment variable was not found.

i already have rlang activated.

Thanks!

[Rick_SAS]

Can you say more about how you are running SAS?

1. Are you running SAS University Edition? 

2. If the answer to #1 is "no," are you connected to a local SAS server on your PC or to a remote SAS server on linux?

[ManuelaVila]

Hi Rick, thanks for answering:

1-im running Sas 3.8 ( its not university) 

2-im connected to a remote SAS server on linux

[Rick_SAS]

OK, then I think this an issue you need to address with your SAS network administrator. I doubt you have the authority/permission to configure the SAS server. The admin needs to start the SAS server with the -RLANG option. Here is a section of the documentation that you can send to your administrator.

[ManuelaVila]

Rick, the admin has already started the sas server with the rlang but i still have the error.

maybe  its an issue of R version (3.5.2) or where its installed?

Thanks 

[Rick_SAS]

Please run the following and post the SAS log:

proc options option=rlang value; run;

[ManuelaVila]

1 OPTIONS NONOTES NOSTIMER NOSOURCE NOSYNTAXCHECK;

72

73 proc options option=rlang value; run;

SAS (r) Proprietary Software Release 9.4 TS1M6

Información del valor de la opción para la opción SAS RLANG

Valor:RLANG

Scope: SAS Session

How option value set: Config File

Config file name:

/opt/sas/SASHome/SASFoundation/9.4/sasv9.cfg

NOTE: PROCEDURE OPTIONS ha utilizado (Tiempo de proceso total):

real time 0.00 seconds

cpu time 0.00 seconds

74

75 OPTIONS NONOTES NOSTIMER NOSOURCE NOSYNTAXCHECK;

87

[Rick_SAS · Accepted solution]

Thanks for confirming that the RLANG system option is set. Because the SAS server is running on Linux, the next thing to do is for the admin to define the  R_HOME environment variable to point to the path of your R installation directory. This is explained in the doc "Installing R on Linux Operating Systems."

There are additional admin tips in Gilsen (2019), which was presented at the 2019 SAS Global Forum.

[ManuelaVila]

Thanks Rick! i will contact the admin for this 

[econtreras]

My Admin has carefully performed the two steps mentioned by Rick_SAS, that is.

1. Start the SAS server with the -RLANG option; according to:
   https://go.documentation.sas.com/?cdcId=pgmsascdc&cdcVersion=9.4_3.3&docsetId=imlug&docsetTarget=iml...
2. Define the R_HOME environment variable to point to the path of your R installation directory; according to:
   https://www.sas.com/content/dam/SAS/support/en/sas-global-forum-proceedings/2019/3556-2019.pdf

However, although the "proc options option=rlang value; run;" shows that RLANG is ENABLE; the SAS code with (only) the R script indicated below keeps giving me the following error message.

ERROR: SAS could not initialize the R language interface.

ERROR: The R shared library could not be loaded: /opt/R/3.6.3/lib/libR.so

proc iml;

submit / r;

------------------ R script ----------------

x<-y+5;
endsubmit;
quit;

Do you guys have any thought on the source(s) of this problem?

[Rick_SAS]

The error message says that SAS is trying to load the R code from

/opt/R/3.6.3/lib/libR.so

and that file does not exist.

I am not a linux system administrator, but I think many people install R in /usr/lib/R. 

1. Did you successfully install R on Linux from the CRAN source? That is, you are using the official CRAN source, not Anaconda or another third-party version?

2. Can you run R from the R GUI?

I doubt I will be able to help resolve this installation issue. I've never installed R on Linux from CRAN.