PARA_ERROR(GETCWD, "can not get current working directory"), \
PARA_ERROR(CHDIR, "can not change directory"), \
PARA_ERROR(OPENDIR, "can not open directory"), \
PARA_ERROR(GETCWD, "can not get current working directory"), \
PARA_ERROR(CHDIR, "can not change directory"), \
PARA_ERROR(OPENDIR, "can not open directory"), \