postman报错：There was an error in evaluating the test script: JSONError: Unexpected token 'n' at 1:15

1.There was an error in evaluating the test script: JSONError: Unexpected token ‘n’ at 1:15 20200509150938nZ5W ^

原因：格式错误

//获取返回数据,JSON格式
var keytime= JSON.parse(responseBody);  
错误原因：此处不需要转为JSON格式的
 
//设置成环境变量
pm.environment.set("key",keytime);