Hi All,

I have the following cvx setup for my optimization problem:

```
cvx_begin sdp
variable W1(6,6) hermitian
variable W2(6,6) hermitian
variable W3(6,6) hermitian
expression W
oo=zeros(3)
W = [ W1(1,1) W1(1,2) oo oo
W1(2,1) W1(2,2) W2(2,3) W3(2,4)
oo W2(3,2) W2(3,3) oo
oo W3(4,2) oo W3(4,4)]
minimize real(trace(W*Fobj))
cvx_end
```

However, I got an error for W which is following:

```
Error using cvx/cat (line 40)
All dimensions but the one being concatenated (2) must be equal.
Error in cvx/horzcat (line 2)
y = cat( 2, varargin{:} );
Error in (line 203)
W = [ W1(1,1) W1(1,2) oo oo
```

Can someone help me out what is wrong with my code?

Thanks,