解決Agent JAR loaded but agent failed to initialize

報該錯誤的（搞了很久）：

Exception in thread "main" com.sun.tools.attach.AgentInitializationException: Agent JAR loaded but agent failed to initialize
at sun.tools.attach.HotSpotVirtualMachine.loadAgent(HotSpotVirtualMachine.java:121)
at com.sun.tools.attach.VirtualMachine.loadAgent(VirtualMachine.java:540)
at Test.main(Test.java:13)

 

檢查下自己的jar包有沒有class文件，我用IDEA打包jar包時沒有把類打包進去，只把MANIFEST.MF打包進去了