单表生成代码后执行出现这样的错误?怎么解决
[org.jeecgframework.core.util.LogUtil][org.jeecgframework.tag.core.easyui.DataGridTag:getNoAuthOperButton():1124] - ----getNoAuthOperButton-------
[org.jeecgframework.core.common.exception.MyExceptionHandler]java.lang.NullPointerException
at org.jeecgframework.core.common.dao.impl.GenericBaseCommonDao.getDataGridReturn(GenericBaseCommonDao.java:704)
at org.jeecgframework.core.common.service.impl.CommonServiceImpl.getDataGridReturn(CommonServiceImpl.java:246)
at sun.reflect.GeneratedMethodAccessor161.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:318)