why I cannot see my datafile on my defining library - sas

Question

I am running the following
%global source_dir util_dir paramf workdir datadir
dataunitid
saserror
;
%let datadir = %str(I:....\KATER\DATA);
%let outdir = %str(I:...\KATER\Results);
I set my library
libname datain "&datadir";
options mstored sasmstore=datain;
and then
%global liste_reg;
%let liste_reg=22 31;
%do k=1 %to %sysfunc(countw(&liste_reg.));
%let reg=%scan(&liste_reg.,&k.);
data hh_record; set datain.hh_record_&reg.; run;
data person_record; set datain.person_record_&reg.; run;
%let outdir_ = &outdir.\output_&reg.;
proc printto log = "&outdir_.Log.txt"; run;
But I get an error:
ERROR: File DATAIN.PERSON_RECORD_.DATA does not exist.
ERROR: File DATAIN.HH_RECORD_.DATA does not exist.
why is this happening, How can I put my data in datain library?
I am new in SAS so i am little confused. In general I realised that there is nothing in both libraries?
EDIT full code:
%global source_dir util_dir paramf workdir datadir
dataunitid
saserror
;
%let source_dir = %str(I:...ONS_Transf_20170523);
*location of code;
%let util_dir = &source_dir.%str(\dsp_utils);
%let datadir = %str(...KATER\DATA);
%let outdir = %str(...\KATER\Results);
%let paramf = &datadir.%str(\parameter_file\param.csv);
options mautosource mrecall sasautos=(sasautos "&source_dir" "&util_dir") nolabel;
%reset_saserror;
libname datain "&datadir";
options mstored sasmstore=datain;
libname outdir "&outdir.\output";
options mstored sasmstore=outdir;
%macro sdc_super_control_KAT;
%global liste_reg;
%let liste_reg=22 31;
%do k=1 %to %sysfunc(countw(&liste_reg.));
%let reg=%scan(&liste_reg.,&k.);
data hh_record;
set datain.hh_record_&reg.;
run;
data person_record;
set datain.person_record_&reg.;
run;
%let outdir_ = &outdir.\output_&reg.;
proc printto log = "&outdir_.Log.txt";
run;
/
%sdc_control;
*copy files to permanent library;
proc copy in=work out=outdir_;
select sdcresults_hh_:;
run;
proc printto;
run;
%end;
data outdir.params;
set diagnostics_params;
run;
%mend sdc_super_control_KAT;
%sdc_super_control_KAT;

Answer 1

I don't think you're showing us the full code. The issue above appears to be due to the &reg macro variable not resolving to a value but there is nothing shown to indicate why that would happen. Also, the error messages are in the wrong order (hh_record_) should come first in the log.
In summary, it's because your reg variable is resolving to a missing value, or because it is not found (if not found, the log should say that though).