burp插件加载失败？

[emmnoi]

在burp extension 中加载jar 包 失败
java.lang.ClassNotFoundException: burp.BurpExtender
at java.net.URLClassLoader$1.run(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at burp.sue.a(Unknown Source)
at burp.sue.(Unknown Source)
at burp.mn.a(Unknown Source)
at burp.ooh.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)

[xiaoxiaoxu203]

java.lang.ClassNotFoundException: burp.BurpExtender
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at burp.a3_.a(Unknown Source)
at burp.a3_.(Unknown Source)
at burp.gcg.a(Unknown Source)
at burp.ao3.lambda$panelLoaded$0(Unknown Source)
at java.lang.Thread.run(Unknown Source)