glpk function for binary linear programming problems

[thoraya ben chattah]

Hi all,

I try to use glpk function is  to solve Binary Linear Programming problems which is defined as follows:

min C'*x

subject to

A*x  = b

x = 0 or x = 1

But I got an error message: glpk: B must be a real valued 3 by 1 vector.

Any help will be realyy appreciated

Thanks

Thoraya