This message is generated when an AlgebraicRulesData expression is used to transform an expression containing variables that are not among the variables that were listed when the AlgebraicRulesData expression was constructed.
AlgebraicRules and AlgebraicRulesData are not documented in the current version of the Wolfram Language and may not be supported in future releases. These functions have been superseded by GroebnerBasis and PolynomialReduce.
Off[message] switches off the message; On[message] switches it on. For example: Off[AlgebraicRules::newv].
Examples
Basic Examples(1)
The expression to be transformed includes a variable not listed in the input to AlgebraicRules: