I also encountered a similar error message when adding the following conic constraints:

```
variable x(3);
variable z(3);
variable w(3);
maximize log(1+x(1)) + log(1+2*x(2)) + log(1+x(3)) - sum(x)
subject to
x >= 0;
z(1) + w(1) == - c * x(1);
z(2) + w(2) == - c * x(2);
z(3) + w(3) == - c * x(3);
norm(z,1) + norm(w,2) - A*x <= 10;
```

The problem occurs when I have both linear constraints and the last constraint. Without the linear constraints, it issues no error. Below is the error message:

```
Error using
Inner matrix dimensions must agree.
Error in cvxprob/eliminate (line 131)
P = P * cvx_invert_structure( xR );
Error in cvxprob/solve (line 17)
[ At, cones, sgn, Q, P, dualized ] = eliminate( prob, true, shim.dualize );
Error in cvx_end (line 79)
solve( prob );
Error in solve_parametric (line 97)
cvx_end
```

Could it be a bug? Should I rewrite the conic constraint in a different way?