Impossibility of performance is mainly a concept of the contract law in Civil Law, and is generally regulated in performance obstacles in the civil laws of many countries.
履行不能主要是大陆法中合同法的一个概念，各国民法一般在履行障碍法中对其进行规定。
2
Impossibility of performance, an important concept in the law of obligation in the Continent law System, is one of core questions in contract law.