Contract Nullity Claim Based on Error of Person Upheld

A party sought the nullity of a contract, alleging a fundamental error concerning the identity of the person with whom the contract was made, which was central to their consent, but the lower court rejected this claim because the identity of the co-contracting party was deemed irrelevant to the true object and terms of the agreement as established by the evidence presented. The higher court upheld this decision, reasoning that for an error regarding the person to invalidate consent, it must be demonstrated that the identity of the other party was the decisive motive for entering the contract, a condition not met in this instance as the lower court had correctly determined that the contractual relationship itself, independent of the specific individual, was the core of the commitment.