Trap the case where only one parameter is estimated and only one non-con...
...stant row is available in Jacobian: (1) do not use vnorm; (2) do not use advanced option.
(cherry picked from commit d9856879)
...stant row is available in Jacobian: (1) do not use vnorm; (2) do not use advanced option.
(cherry picked from commit d9856879)