一直停在加载页面，查看报错日志一直都是这个错误

java.lang.NullPointerException

at com.fr.start.module.DesignerStartup.registerDaoSelector(DesignerStartup.java:163)

at com.fr.start.module.DesignerStartup.beforeAllStart(DesignerStartup.java:67)

at com.fr.module.engine.strategy.AbstractInvokeSubStrategy.start(AbstractInvokeSubStrategy.java)

at com.fr.module.engine.FineModule$FineModuleRunner.executeStart(FineModule.java)

at com.fr.stable.lifecycle.AbstractLifecycle.start(AbstractLifecycle.java)

at com.fr.module.engine.FineModule$FineModuleRunner.start(FineModule.java)

at com.fr.module.engine.FineModule.start(FineModule.java)

at com.fr.start.MainDesigner.main(MainDesigner.java:150)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.lang.reflect.Method.invoke(Method.java:498)

at com.fr.process.engine.core.FineProcessEntry.run(FineProcessEntry.java)

at com.fr.start.FineDesigner.run(FineDesigner.java:26)

at com.fr.process.engine.FineProcessUtils.run(FineProcessUtils.java)

at com.fr.start.FineDesigner.main(FineDesigner.java:19)