The ''R2012a'' and ''legacy'' flags are not supported. VARS must specify the same variables in A and B. A and B must contain the same variables. You cannot specify the ''{0}'' flag more than once. You can specify either ''sorted'' or ''stable'' but not both. A and B must both be tables, or both be timetables. Unrecognized flag ''{0}''. Valid flags are ''stable'' and ''sorted''. Invalid input. Valid flags are ''stable'' and ''sorted''. Unrecognized flag ''{0}''. Invalid input. Valid flags must be strings or character vectors. Unable to merge the ''{0}'' variables in A and B. Code generation does not support Mx0 tables as inputs for ''{0}''.