I am having some issues (status: Failed ) using SDP in Matlab 2013b. I have installed 64 bit version CVX in Windows 8.1. But the same program is working in other versions of Matlab in my friend’s PC.
I doubt that MATLAB R2013b is the issue, but a different version of CVX might be. Also, try using other solvers: if you’re using SeDuMi, try SDPT3, or vice versa.