couldn't deserialize object是什么问题啊，这个异常怎么解决啊

Question

实现了，代码是执行到ElecApplicationVariables elecApplicationVariables = (ElecApplicationVariables)processEngine.getTaskService().getVariable(taskId, "application");这里报错的

Answer 1

代码是执行到ElecApplicationVariables elecApplicationVariables = (ElecApplicationVariables)processEngine.getTaskService().getVariable(taskId, "application");这里报错的，我这句有可能报这个错误吗？

Answer 2

应该是processEngine.getTaskService().getVariable(taskId, "application");这里报错的，到底是什么原因啊