yalmip语句出现引用不存在字段，咋解决

Question

引用了不存在的字段 'used_variables'。

出错 solvesdp_multiple (line 32)
    model.c = mapObjective(h_variables,model.used_variables,h_base(i,2:end));

出错 solvesdp (line 17)
        diagnostic = solvesdp_multiple(varargin{:});

出错 optimize (line 31)
[varargout{1:nargout}] = solvesdp(varargin{:});

出错 xufan (line 64)
optimize(F,p);

Answer 1

请问这个错误怎么解决