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org.grails.web.servlet.GrailsFlashScope cannot be cast to grails.web.mvc.FlashScope
java.lang.ClassCastException: org.grails.web.servlet.GrailsFlashScope cannot be cast to grails.web.mvc.FlashScope	at org.grails.web.servlet.DefaultGrailsApplicationAttributes.getFlashScope(DefaultGrailsApplicationAttributes.java:173)	at org.grails.web.servlet.mvc.GrailsWebRequestFilter.doFilterInternal(GrailsWebRequestFilter.java:68)	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:101)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:101)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:101)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:101)	at org.springframework.boot.context.web.ErrorPageFilter.doFilter(ErrorPageFilter.java:113)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)	at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:748)	at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:486)	at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:411)	at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:338)	at org.springframework.boot.context.web.ErrorPageFilter.forwardToErrorPage(ErrorPageFilter.java:188)	at org.springframework.boot.context.web.ErrorPageFilter.handleException(ErrorPageFilter.java:171)	at org.springframework.boot.context.web.ErrorPageFilter.doFilter(ErrorPageFilter.java:135)	at org.springframework.boot.context.web.ErrorPageFilter.access$000(ErrorPageFilter.java:61)	at org.springframework.boot.context.web.ErrorPageFilter$1.doFilterInternal(ErrorPageFilter.java:95)	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)	at org.springframework.boot.context.web.ErrorPageFilter.doFilter(ErrorPageFilter.java:113)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)	at org.apache.catalina.ha.tcp.ReplicationValve.invoke(ReplicationValve.java:333)	at org.apache.catalina.ha.session.JvmRouteBinderValve.invoke(JvmRouteBinderValve.java:218)	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)	at org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:193)	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)	at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)	at java.lang.Thread.run(Thread.java:745)