[ESPResSo] Can not activate LB feature

[g9611559]

Hello,

I am trying to activate the Lattice-Boltzmann feature with Espresso-2.1.0. I 
have already include #define LB in my myconfig file. After I type command 
"make", the screen output :  

..
In file included from ../initialize.c:55:
./lb-boundaries.h:46:2: #error Boundary conditions are only implemented for 
D3Q18! (#defined in lb.h)
In file included from ../initialize.c:55:
./lb-boundaries.h: In function `lb_copy_neg_populations':
./lb-boundaries.h:39: warning: unused variable `weigth'
./lb-boundaries.h:40: warning: unused variable `i'
./lb-boundaries.h:138:2: #error Boundary conditions are only implemented for 
D3Q18! (#defined in lb.h)
..

And the compilation failed.
Did I made any mistake during the compilation?
Thank you for your kindness.

Best regards,

Shih-ju