Trigger class CallStackTrigger not found

[agrimaseth]

I am trying to execute the example given in this repository. I stored the myplan.xml file in the
/home/student/lfi folder and then also have made a database named dbname with postgresql .

Then i execute the following: ./libfi myplan.xml -t /usr/bin/psql
it compiles successfully but shows the following errors:

1. root@student-HP-Compaq-Elite-8300-SFF:/home/student/lfi# ./libfi myplan.xml -t /usr/bin/psql
2. Generating stub file intercept.stub.cpp from myplan.xml
3. Compiling stub library intercept.stub.so from intercept.stub.cpp
4. g++ -g -o intercept.stub.so intercept.stub.cpp inter.cpp Trigger.cpp triggers/*.cpp xml2-config --cflags xml2-config --libs -O0 -shared -fPIC -lrt -ldl ...
5. Compiled successfully...
6. [LFI] Preloading /home/student/lfi/intercept.stub.so
7. Trigger class CallStackTrigger not found or not yet registered while intercepting recv
8. psql: FATAL: role "root" does not exist
9. Process exited normally. Exit status: 2

I am an undergraduate student at University of Pune, and would be really grateful if you could help