Field \"identifier\" of input structure must contain a valid MATLAB message identifier. Field \"message\" of input structure must contain a character vector or string scalar. The field \"stack\" must be an m-by-1 array. The field \"stack\" must contain the fields: \"file\", \"name\", \"line\". The field \"file\" of the field \"stack\" must contain a character vector. The field \"line\" of the field \"stack\" must contain a scalar double. The field \"name\" of the field \"stack\" must contain a character vector. The field \"stack\" of the input structure must contain a structure. Input structure must be scalar.