I have a complex valued linear equation y=Bc. I want to minimize the sum of the euclidean norms of the block-subvectors within the vector c. I am having difficulty in writing the correct syntax for the objective. c is of dimension Nx1 complex vector and c is made up of nx1 complex subvectors, N=d*n, there are d subvectors in c.
Before you swap versions try my fix above with the abs added. If that works for you, then no need to change. If you do need to change versions, just remove CVX 3.0 completely, and install CVX 2.1 as normal—including re-running cvx_setup.