Missing GLPK solver

I am getting this error message when trying to install cvx. Do I need to install GLPK? Can you recommend the best place to download this?

Setting CVX paths…already set!
Searching for solvers…5 shims found.
5 solvers initialized (* = default):
Gurobi 6.00 {cvx}\gurobi\w64
Gurobi_2 6.51 E:\gurobi651\win64
Mosek {cvx}\mosek\w64

  • SDPT3 4.0 {cvx}\sdpt3
    SeDuMi 1.34 {cvx}\sedumi
    1 solver skipped:
    Could not find a GLPK installation.
    Saving updated preferences…done.
    Testing with a simple model…done!

To change the default solver, type “cvx_solver <solver_name>”.
To save this change for future sessions, type “cvx_save_prefs”.
Please consult the users’ guide for more information.

You don’t need to install GLPK unless you want to use it. You have better solvers than GLPK installed under CVX.