grails - 在Grails上使用插件Activiti启动VacationRequestSampleApplication时出错

Question

我是BPM的新手，我尝试在自己的Grails应用程序上安装Activiti。

我已经安装了插件和安全性插件(Spring安全性和Activiti-spring安全性)，以及Vacation Request应用程序。

来自:http://code.google.com/p/grails-activiti-plugin/wiki/VacationRequestSampleApplication

我登录，当我单击“开始”链接时，出现此错误:

java.lang.NullPointerException: Cannot get property 'id' on null object
    at ActivitiGrailsPlugin$_addActivitiMethods_closure7_closure29.doCall(ActivitiGrailsPlugin.groovy:130)
    at ActivitiGrailsPlugin$_addActivitiMethods_closure7.doCall(ActivitiGrailsPlugin.groovy:126)
    at vacationRequest.VacationRequestController$_closure2.doCall(VacationRequestController.groovy:36)
    at vacationRequest.VacationRequestController$_closure2.doCall(VacationRequestController.groovy)
    at java.lang.Thread.run(Thread.java:662)

Answer 1

我已经按照以下顺序安装了插件

activiti-5.8.2

spring-security-core-1.2.7.2

activiti-spring-security-0.4.6

install-vacation-request-sampleapp

我正在

| Error 2012-03-26 11:07:49,216 [http-bio-8080-exec-10] ERROR errors.GrailsExceptionResolver  - NullPointerException occurred when processing request: [GET] /test3/vacationRequest/start 
Cannot get property 'id' on null object. Stacktrace follows:
Message: Cannot get property 'id' on null object
    Line | Method
->>  129 | doCall    in ActivitiGrailsPlugin$_addActivitiMethods_closure7_closure29
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
|    125 | doCall    in ActivitiGrailsPlugin$_addActivitiMethods_closure7
|     36 | doCall .  in vacationRequest.VacationRequestController$_closure2
|   1110 | runWorker in java.util.concurrent.ThreadPoolExecutor
|    603 | run . . . in java.util.concurrent.ThreadPoolExecutor$Worker
^    722 | run       in java.lang.Thread

可以来自我正在使用的插件版本吗？