Resolves error after user generated meta import Kylin can not deserialize instance of java.lang.string[] out of Value_string tokens

Error Stack:

 .- .- A  -: -: -,101ERROR [http-bio-7070-exec-5] Cube. Cubemanager:947: Error During Load cube instance, skipping:/cube/energon_dm_admission_record_fact_01.jsonjava.lang.IllegalStateException:Failed to init cubedescmanager from[email protected] at org.apache.kylin.cube.CubeDescManager.getInstance (Cubedescmanager.java: +) at Org.apache.kylin.cube.CubeManager.reloadCubeLocalAt (Cubemanager.java:922) at Org.apache.kylin.cube.CubeManager.loadAllCubeInstance (Cubemanager.java: the) at Org.apache.kylin.cube.CubeManager.<init> (Cubemanager.java:141) at Org.apache.kylin.cube.CubeManager.getInstance (Cubemanager.java: the) at Org.apache.kylin.rest.service.BasicService.getCubeManager (Basicservice.java: the) at Org.apache.kylin.rest.service.CubeService.listAllCubes (Cubeservice.java: -) at org.apache.kylin.rest.service.cubeservice$ $FastClassBySpringCGLIB $$17a07c0e.invoke (<generated>) at Org.springframework.cglib.proxy.MethodProxy.invoke (Methodproxy.java:204) at Org.springframework.aop.framework.cglibaopproxy$cglibmethodinvocation.invokejoinpoint ( Cglibaopproxy.java: the) at Org.springframework.aop.framework.ReflectiveMethodInvocation.proceed (Reflectivemethodinvocation.java:  Max) at Org.springframework.security.access.intercept.aopalliance.MethodSecurityInterceptor.invoke ( Methodsecurityinterceptor.java: -) at Org.springframework.aop.framework.ReflectiveMethodInvocation.proceed (Reflectivemethodinvocation.java: 172) at Org.springframework.aop.framework.cglibaopproxy$dynamicadvisedinterceptor.intercept (CglibAopProxy.java: 633) at org.apache.kylin.rest.service.cubeservice$ $EnhancerBySpringCGLIB $$543fa169.listallcubes (<generated>) at Org.apache.kylin.rest.controller.CubeController.getCubes (Cubecontroller.java: the) at Sun.reflect.NativeMethodAccessorImpl.invoke0 (Native Method) at Sun.reflect.NativeMethodAccessorImpl . Invoke (Nativemethodaccessorimpl.java: +) at Sun.reflect.DelegatingMethodAccessorImpl.invoke (Delegatingmethodaccessorimpl.java: +) at Java.lang.reflect.Method.invoke (Method.java:497) at Org.springframework.web.method.support.InvocableHandlerMethod.doInvoke (Invocablehandlermethod.java: 221) at Org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest ( Invocablehandlermethod.java:136) at Org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle ( Servletinvocablehandlermethod.java:104) at Org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod ( Requestmappinghandleradapter.java:743) at Org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal ( Requestmappinghandleradapter.java:672) at Org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle ( Abstracthandlermethodadapter.java: the) at Org.springframework.web.servlet.DispatcherServlet.doDispatch (Dispatcherservlet.java:933) at Org.springframework.web.servlet.DispatcherServlet.doService (Dispatcherservlet.java:867)..... caused By:com.fasterxml.jackson.databind.JsonMappingException:Can not deserialize instance of java.lang.string[]  outof value_string tokens at [Source: [E-mail protected]; line:1, column:205] (through reference chain:org.apache.kylin.cube.model.cubedesc["null_string"]) at com.fasterxml.jackson.databind.JsonMappingException. from(Jsonmappingexception.java:148) at Com.fasterxml.jackson.databind.DeserializationContext.mappingException (Deserializationcontext.java: 857) at Com.fasterxml.jackson.databind.DeserializationContext.mappingException (Deserializationcontext.java: 853) at Com.fasterxml.jackson.databind.deser.std.StringArrayDeserializer.handleNonArray ( Stringarraydeserializer.java:145) at Com.fasterxml.jackson.databind.deser.std.StringArrayDeserializer.deserialize ( Stringarraydeserializer.java: -) at Com.fasterxml.jackson.databind.deser.std.StringArrayDeserializer.deserialize ( Stringarraydeserializer.java: -) at Com.fasterxml.jackson.databind.deser.SettableBeanProperty.deserialize (Settablebeanproperty.java:520) at Com.fasterxml.jackson.databind.deser.impl.FieldProperty.deserializeAndSet (Fieldproperty.java:101) at Com.fasterxml.jackson.databind.deser.BeanDeserializer.vanillaDeserialize (Beandeserializer.java:258) at Com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize (Beandeserializer.java: the) at Com.fasterxml.jackson.databind.objectmapper._readmapandclose (Objectmapper.java:3736) at Com.fasterxml.jackson.databind.ObjectMapper.readValue (Objectmapper.java:2796) at Org.apache.kylin.common.util.JsonUtil.readValue (Jsonutil.java: +) at Org.apache.kylin.common.persistence.JsonSerializer.deserialize (Jsonserializer.java: +) at Org.apache.kylin.common.persistence.ResourceStore.getResource (Resourcestore.java:146) at Org.apache.kylin.cube.CubeDescManager.loadCubeDesc (Cubedescmanager.java:173) at Org.apache.kylin.cube.CubeDescManager.reloadAllCubeDesc (Cubedescmanager.java:252) at Org.apache.kylin.cube.CubeDescManager.<init> (Cubedescmanager.java: About) at Org.apache.kylin.cube.CubeDescManager.getInstance (Cubedescmanager.java: in)        ...  theMore

Resolution: The Null_string field Kylin requires string[], but the self-generated meta is empty, resulting in JSON deserialization failure

Resolves error after user generated meta import Kylin can not deserialize instance of java.lang.string[] out of Value_string tokens