jmeter BeanShell预处理程序：报错JSONObject not found in namespace

1、jmeter运行报错：

ERROR o.a.j.u.BeanShellInterpreter: Error invoking bsh method: eval Sourced file: inline evaluation of: ". . . '' : Typed variable declaration : Class: JSONObject not found in namespace

WARN o.a.j.m.BeanShellPreProcessor: Problem in BeanShell script. org.apache.jorphan.util.JMeterException: Error invoking bsh method: eval Sourced file: inline evaluation of: ". . . '' : Typed variable declaration : Class: JSONObject not found in namespace

2、下载json.jar包

到官网，搜索json，点击JSON In Java进入

3、选择最新日期、使用人数最多

4、点击bundle下载

5、下载完成之后，把jar包放到jmeter路径lib目录

6、重启运行jmeter，即可