I am trying to solve this SOCP problem using CVX. But I am getting this error. How to resolve this issue?

I am attaching my code here.

Thanks

```
cvx_begin quiet
variable Gamma nonnegative
variable b(N*Nb,1,K) complex
minimize Gamma
subject to
for i=1:K
b(:,i)'*Truehk(:,i) - norm(Pk(:,:,i)'*b(:,i),2) >= 1
end
for t=1:K
for r=1: K
if r~=t
real(b(:,r)'*Truehk(:,t)) + norm(Pk(:,:,t)'*b(:,r),2) <= Gamma
end
end
end
cvx_end
```