Can someone please explain me this error??

Subscript indices must either be real positive integers or

logicals.

Error in cvx_extract (line 552)

Pd(Pr) = false;

Error in cvx_solve (line 26)

[ At, cones, sgn, Q, P, exps, dualized ] = cvx_extract(

shim.config, shim.name );

Error in cvx_finish (line 57)

[ status, result, bound, iters, tol ] = cvx_solve;

Error in cvx_end (line 11)

evalin( ‘caller’, ‘cvx_finish’ );

Subscript indices must either be real positive integers or

logicals.

Error in cvx_extract (line 552)

Pd(Pr) = false;

Error in cvx_solve (line 26)

[ At, cones, sgn, Q, P, exps, dualized ] = cvx_extract(

shim.config, shim.name );

Error in cvx_finish (line 57)

[ status, result, bound, iters, tol ] = cvx_solve;

Error in cvx_end (line 11)

evalin( ‘caller’, ‘cvx_finish’ );