:l.1214:EvalSumRows(): Input evaluation key map is empty

Library Questions
1

Hi! I’m trying to run Logistic Regression Training Examples using OpenFHE from GitHub - openfheorg/openfhe-logreg-training-examples: OpenFHE-Based Examples of Logistic Regression Training using Nesterov Accelerated Gradient Descent, and then I run ./lr_nag by default, I see this:

"
Running in 64-bit mode
Using Bootstrapping

Bootstrapping Crypto Params
Discrete key used: UNIFORM_TERNARY
Approx Bootstrap depth: 8
Levels before bootstrap: 15
Final Bootstrap Depth: 32
Generating keys
Mult keys
EvalSum keys
Feature Analysis: min ave max
BWTR14: -1 -0.0670072 1
RECWT: -1 -0.906798 1
APGAR5R: -1 0.0507812 1
BFEDN: -1 -0.353516 1
AB_NICUN: -1 0.474609 1
APGAR5: -1 -0.815065 1
CIG_RECN: -1 0.703125 1
CA_CCHDY: -1 -0.988281 1
BFEDU: -1 -0.625 1
intercept: 1 1 1
Feature Analysis: min ave max
BWTR14: -1.81406 8.75629e-09 2.11671
RECWT: -0.397435 -1.03125e-08 7.33578
APGAR5R: -1.69504 -1.62249e-09 1.52858
BFEDN: -0.699621 5.72989e-09 1.42931
AB_NICUN: -1.63742 1.29645e-08 0.610703
APGAR5: -0.650891 2.64614e-09 6.63565
CIG_RECN: -2.27874 -1.06741e-08 0.43883
CA_CCHDY: -0.101282 -3.50169e-09 9.87319
BFEDU: -0.447842 8.56796e-09 2.23288
intercept: 1 1 1
Feature Analysis: min ave max
IMORT: 0 0.5 1
Feature Analysis: min ave max
IMORT: 0 0.5 1
EvalRotate keys
colSize x rowSize = 4096 * 16 = 65536

Bootstrap Iteration: 0 ******************************************************************
terminate called after throwing an instance of ‘lbcrypto::OpenFHEException’
what(): /usr/local/include/openfhe/pke/schemebase/base-scheme.h:l.1214:EvalSumRows(): Input evaluation key map is empty
Aborted (core dumped)
"

Please help me with this situation!
P.S. I am using openfhe 1.1.4 version.

2

It is a known bug in v1.1.4. There is a github issue for it: EvalSumRowsKeyGen()/EvalSumColsKeyGen() incorrect behavior · Issue #773 · openfheorg/openfhe-development · GitHub We will fix it in v1.2.0 (to be released within 2-3 weeks). It works correctly in v1.1.2. Also, there are multiple topics on this bug in the Discourse forum, e.g., Error in EvalSumRows "Input evaluation key map is empty" - #3 by ManhBui