i got the same problem.
[ 30%] Building CXX object src/server/game/CMakeFiles/game.dir/Server/WorldSocket.cpp.o
[ 30%] Building CXX object src/server/game/CMakeFiles/game.dir/Server/WorldSocketMgr.cpp.o
[ 31%] Building CXX object src/server/game/CMakeFiles/game.dir/Server/WorldSession.cpp.o
[ 31%] Building CXX object src/server/game/CMakeFiles/game.dir/Skills/SkillDiscovery.cpp.o
[ 31%] Building CXX object src/server/game/CMakeFiles/game.dir/Skills/SkillExtraItems.cpp.o
[ 31%] Building CXX object src/server/game/CMakeFiles/game.dir/Spells/Spell.cpp.o
/home/wow/TrinityCore/src/server/game/Spells/Spell.cpp: In constructor ‘Spell::Spell(Unit*, const SpellInfo*, TriggerCastFlags, uint64, bool)’:
/home/wow/TrinityCore/src/server/game/Spells/Spell.cpp:500: error: lvalue required as left operand of assignment
make[2]: *** [src/server/game/CMakeFiles/game.dir/Spells/Spell.cpp.o] Error 1
make[1]: *** [src/server/game/CMakeFiles/game.dir/all] Error 2
make: *** [all] Error 2
wow@debian:~/build$
i had delete the build folder and try compiling again. Still got this errors.
