make
[ 50%] Building CXX object CMakeFiles/practice.dir/practice.cc.o
[100%] Linking CXX executable practice
/usr/bin/ld: CMakeFiles/practice.dir/practice.cc.o: in function main': practice.cc:(.text+0x75): undefined reference to
MyDetectorConstruction::MyDetectorConstruction()β
/usr/bin/ld: practice.cc:(.text+0xab): undefined reference to `MyPhysicsList::MyPhysicsList()β
collect2: error: ld returned 1 exit status
make[2]: *** [CMakeFiles/practice.dir/build.make:142: practice] Error 1
make[1]: *** [CMakeFiles/Makefile2:83: CMakeFiles/practice.dir/all] Error 2
make: *** [Makefile:136: all] Error 2
1 Like
Do you have classes named MyDetectorConstruction and MyPhysicsList in your sources? If you do, do you have the .cc and .hh files listed in your CMakeLists.txt file? If the sources arenβt listed there, then they wonβt be compiled.
Hi @Rajka_Pejanovic
did your error solved?? I am getting same error ,tried every method mentioned but no success