Hi Fernando,

"L" is just part of C/C++ notation, remove it.

NERR_BASE is another constant, request it as all others constants in this reference.

#DEFINE ERROR_MEMBER_IN_ALIAS 1378  && no "L" :)
#DEFINE NERR_BASE 2100
...
#DEFINE NERR_GroupNotFound (NERR_BASE+120)
* or
#DEFINE NERR_GroupNotFound 2220
* whichever suits you better :)