找不到processEngineSpec，我在工程里搜索也没找到，请大侠指教

[DEBUG] 2017-09-12 14:30:08,437 org.nutz.ioc.impl.NutIoc.get(NutIoc.java:151) - Get 'processEngineSpec'<>
[DEBUG] 2017-09-12 14:30:08,438 org.nutz.ioc.impl.NutIoc.get(NutIoc.java:177) - 	 >> Load definition name=processEngineSpec
org.nutz.ioc.IocException: IocBean[processEngineSpec] For object [processEngineSpec] - type:[]
	at org.nutz.ioc.impl.NutIoc.get(NutIoc.java:218)
	at org.nutz.ioc.impl.NutIoc.get(NutIoc.java:239)
	at cn.wizzer.app.web.commons.core.Setup.initActiviti(Setup.java:120)
	at cn.wizzer.app.web.commons.core.Setup.init(Setup.java:101)
	at org.nutz.mvc.impl.NutLoading.evalSetup(NutLoading.java:274)
	at org.nutz.mvc.impl.NutLoading.load(NutLoading.java:121)
	at org.nutz.mvc.ActionHandler.<init>(ActionHandler.java:19)
	at org.nutz.mvc.NutFilter._init(NutFilter.java:91)
	at org.nutz.mvc.NutFilter.init(NutFilter.java:69)
	at org.apache.catalina.core.ApplicationFilterConfig.initFilter(ApplicationFilterConfig.java:279)
	at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:260)
	at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:105)
	at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4700)
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5340)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1408)
	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1398)
	at java.util.concurrent.FutureTask.run(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)
Caused by: org.nutz.ioc.ObjectLoadException: Object 'processEngineSpec' without define!
	at org.nutz.ioc.loader.combo.ComboIocLoader.load(ComboIocLoader.java:166)
	at org.nutz.ioc.impl.NutIoc.get(NutIoc.java:180)
	... 20 more
[INFO ] 2017-09-12 14:30:08,439 org.nutz.mvc.impl.NutLoading.load(NutLoading.java:141) - Nutz.Mvc[nutz] is up in 6368ms