invalid object specified

[AronN]

I am new to SAS so perhaps it is a simple error.  I am using code and data that someone else wrote and worked on their system.  Data is being read in, but I get the error "Invalid object specified to bridge protocol engine."  It seems I may need to do a "hot fix"  but none of the fixes seemed to address this issue.  I am running Studio 3.81.  Thanks

Here is the code, and I have attached five of the sixteen input files (maximum allowed).

options ls=132; * nocenter; * nodate nonumber 80 ps=9999;
/*OITP Summary 110320_AN-INS1BLACK*/
%macro transit(CallN,Man,Ins,Col);
data d&CallN;  infile "c:\SAS_Data\OITP Summary 012621_&Man-&Ins&Col..csv" dlm=',' dsd truncover;
  MANUF="&Man";  length Layer1 Layer2 $ 5;  Layer1="&Ins";  Layer2="&Col";  if Layer2=' ' then Layer2='none';
* input (NO TYPE LAB COLOUR TEMP DRATE) ($) TIME_d (LAB_A MODEL CALIB RAMP TEMP_T FLOW_O FLOW_N) ($) WT1-WT5 OITP1-OITP5;
  input (NO TYPE LAB COLOUR TEMP DRATE) ($) TIME_d (LAB_A MODEL CALIB RAMP FLOW_O) ($) WT1-WT5 OITP1-OITP5;  chk=substr(NO,1,1);
  if 'A'<=chk<='R' then do;  chk2=substr(NO,6,1);  chk3=substr(NO,7,1);
    if '1'<=chk2<='5' then Chamber=chk2;  else if '1'<=chk3<='5' then Chamber=chk3;  end;
  else if '1'<=chk<='6' then Chamber=chk;  else delete;  if WT1=. then delete;
  keep MANUF Layer1 Layer2 TIME_d WT1-WT5 OITP1-OITP5 Chamber;
proc print uniform;  var MANUF Layer1 Layer2 Chamber TIME_d WT1-WT5 OITP1-OITP5;  title "&CallN Raw &Man-&Ins&Col Data";
data d&CallN;  set d&CallN;
  if TIME_d=0 then do Chamber='1','2','3','4','5';  output;  end;  else output;
data d&CallN;  set d&CallN;  keep MANUF Layer1 Layer2 TIME_d WT OITP Chamber rep;
  rep=1;  Wt=WT1;  OITP=OITP1;  output;
  rep=2;  Wt=WT2;  OITP=OITP2;  output;
  rep=3;  Wt=WT3;  OITP=OITP3;  output;
  rep=4;  Wt=WT4;  OITP=OITP4;  output;
  rep=5;  Wt=WT5;  OITP=OITP5;  output;
data d&CallN;  set d&CallN;  if wt>.;
proc print uniform;  var MANUF Layer1 Layer2 Chamber TIME_d rep WT OITP;  title "&CallN Transposed &Man-&Ins&Col Data";
%mend transit;

%transit(1,RB,J,);
%transit(2,RB,INS1,);
%transit(3,RB,INS2,);
%transit(4,RB,INS3,);
%transit(5,AN,J,);
%transit(6,AN,INS1,BLACK);
%transit(7,AN,INS1,PINK);
%transit(8,AN,INS2,BLACK);
%transit(9,AN,INS2,PINK);
%transit(10,BW,J,);
%transit(11,BW,INS1,);
%transit(12,BW,INS2,);
%transit(13,OK,INS1,);
%transit(14,OK,INS2,);
%transit(15,OK,INS3,);
%transit(16,OK,J,);
data all;  set d1 d2 d3 d4 d5 d6 d7 d8 d9 d10 d11 d12 d13 d14 d15 d16;  CHAM=0;  CHAM=Chamber;
  temp=(CHAM=1)*55 + (CHAM>1)*81;
  wet =(CHAM=2)    + (CHAM=4);
  GrHr =(CHAM>3)*20 + (CHAM<4)*69;  time_m=TIME_d/30;  Exp=time_m/2;  drop TIME_d Exp;
* time=Exp*2;  dose=round((GrHr=20)*Exp*23.2/8 + (GrHr=69)*Exp*80/8,.1);
proc corr;  title 'Basic Relationships for OITP and Read or Generated Variables';
proc univariate normal plot;  var OITP;  ID Wt;
proc glm;  class MANUF Layer1 Layer2 CHAM rep;
  model OITP = MANUF Layer1 Layer2 CHAM rep TEMP WET GRHR TIME_m DOSE wt;  title2 'Step 0. OITP Full Model';
proc glm;  class MANUF Layer1 Layer2 CHAM    ;
  model OITP = MANUF Layer1 Layer2 CHAM     TEMP WET GRHR TIME_m DOSE wt;  title2 'Step 1. OITP: Drop REP';
proc glm;  class MANUF Layer1 Layer2 CHAM    ;
  model OITP = MANUF Layer1 Layer2 CHAM     TEMP WET GRHR TIME_m DOSE   ;  title2 'Step 2. OITP: Drop REP, WT';
proc glm;  class MANUF Layer1 Layer2         ;
  model OITP = MANUF Layer1 Layer2          TEMP WET GRHR TIME_m DOSE   ;  title2 'Step 3. OITP: Drop REP, WT, CHAM';
proc glm;  class MANUF Layer1 Layer2         ;
  model OITP = MANUF Layer1 Layer2               WET GRHR TIME_m DOSE   ;  title2 'Step 4. OITP: Drop REP, WT, CHAM, TEMP';
proc glm;  class MANUF Layer1 Layer2         ;
  model OITP = MANUF Layer1 Layer2               WET      TIME_m DOSE   /noint solution;  title2 'Step 5. OITP: Drop REP, WT, CHAM, TEMP, GRHR';

endsas;*======================================================================================================;

[AronN · Accepted solution]

I found a recommendation on the internet to remove "endsas" at the end of the code.  It works!