Gettign below error while upgrading mendix from 6 to 7.8 java.lang.ClassCastException: com.mendix.basis.objectmanagement.MendixIdentifier cannot be cast to java.lang.String at com.mendix.webui.jsonserialization.ResultSerializer$$anonfun$generateMap$1.apply(ResultSerializer.scala:85) at com.mendix.webui.jsonserialization.ResultSerializer$$anonfun$generateMap$1.apply(ResultSerializer.scala:85) at scala.collection.immutable.Map$Map1.foreach(Map.scala:116) at com.mendix.webui.jsonserialization.ResultSerializer.generateMap(ResultSerializer.scala:85) at com.mendix.webui.jsonserialization.ResultSerializer.com$mendix$webui$jsonserialization$ResultSerializer$$generate(ResultSerializer.scala:73) at com.mendix.webui.jsonserialization.ResultSerializer.generate(ResultSerializer.scala:60) at com.mendix.webui.jsonserialization.ResultSerializer$$anonfun$generateMap$1.apply(ResultSerializer.scala:85) at com.mendix.webui.jsonserialization.ResultSerializer$$anonfun$generateMap$1.apply(ResultSerializer.scala:85) at scala.collection.immutable.HashMap$HashMap1.foreach(HashMap.scala:221) at scala.collection.immutable.HashMap$HashTrieMap.foreach(HashMap.scala:428) at com.mendix.webui.jsonserialization.ResultSerializer.generateMap(ResultSerializer.scala:85) at com.mendix.webui.jsonserialization.ResultSerializer.com$mendix$webui$jsonserialization$ResultSerializer$$generate(ResultSerializer.scala:73) at com.mendix.webui.jsonserialization.ResultSerializer.generate(ResultSerializer.scala:60) at com.mendix.webui.jsonserialization.ResultSerializer$$anonfun$generateMap$1.apply(ResultSerializer.scala:85) at com.mendix.webui.jsonserialization.ResultSerializer$$anonfun$generateMap$1.apply(ResultSerializer.scala:85) at scala.collection.immutable.Map$Map4.foreach(Map.scala:188) at com.mendix.webui.jsonserialization.ResultSerializer.generateMap(ResultSerializer.scala:85) at com.mendix.webui.jsonserialization.ResultSerializer.com$mendix$webui$jsonserialization$ResultSerializer$$generate(ResultSerializer.scala:73) at com.mendix.webui.jsonserialization.ResultSerializer$$anonfun$generateIterable$1.apply(ResultSerializer.scala:102) at com.mendix.webui.jsonserialization.ResultSerializer$$anonfun$generateIterable$1.apply(ResultSerializer.scala:102) at scala.collection.immutable.List.foreach(List.scala:392) at com.mendix.webui.jsonserialization.ResultSerializer.generateIterable(ResultSerializer.scala:102) at com.mendix.webui.jsonserialization.ResultSerializer.com$mendix$webui$jsonserialization$ResultSerializer$$generate(ResultSerializer.scala:76) at com.mendix.webui.jsonserialization.ResultSerializer.generate(ResultSerializer.scala:60) at com.mendix.webui.requesthandling.ClientRequestHandler$$anonfun$com$mendix$webui$requesthandling$ClientRequestHandler$$convertClientActionResult$1.apply(ClientRequestHandler.scala:480) at com.mendix.webui.requesthandling.ClientRequestHandler$$anonfun$com$mendix$webui$requesthandling$ClientRequestHandler$$convertClientActionResult$1.apply(ClientRequestHandler.scala:476) at scala.collection.mutable.HashMap$$anonfun$foreach$1.apply(HashMap.scala:130) at scala.collection.mutable.HashMap$$anonfun$foreach$1.apply(HashMap.scala:130) at scala.collection.mutable.HashTable$class.foreachEntry(HashTable.scala:236) at scala.collection.mutable.HashMap.foreachEntry(HashMap.scala:40) at scala.collection.mutable.HashMap.foreach(HashMap.scala:130) at com.mendix.webui.requesthandling.ClientRequestHandler.com$mendix$webui$requesthandling$ClientRequestHandler$$convertClientActionResult(ClientRequestHandler.scala:476) at com.mendix.webui.requesthandling.ClientRequestHandler$$anonfun$handleRequest$1.apply$mcV$sp(ClientRequestHandler.scala:357) at com.mendix.webui.requesthandling.ClientRequestHandler$$anonfun$handleRequest$1.apply(ClientRequestHandler.scala:313) at com.mendix.webui.requesthandling.ClientRequestHandler$$anonfun$handleRequest$1.apply(ClientRequestHandler.scala:313) at com.mendix.basis.actionmanagement.IMonitoredAction$$anon$1.execute(IMonitoredAction.scala:47) at com.mendix.util.classloading.Runner.doRunUsingClassLoaderOf(Runner.java:33) at com.mendix.basis.actionmanagement.IMonitoredAction$class.monitor(IMonitoredAction.scala:49) at com.mendix.webui.requesthandling.ClientRequestHandler$ClientMonitoredAction.monitor(ClientRequestHandler.scala:431) at com.mendix.webui.requesthandling.ClientRequestHandler.handleRequest(ClientRequestHandler.scala:313) at com.mendix.webui.requesthandling.ClientRequestHandler.handleActionWithSessionRequired(ClientRequestHandler.scala:251) at com.mendix.webui.requesthandling.ClientRequestHandler.handleAction(ClientRequestHandler.scala:218) at com.mendix.webui.requesthandling.ClientRequestHandler.liftedTree1$1(ClientRequestHandler.scala:104) at com.mendix.webui.requesthandling.ClientRequestHandler.processRequest(ClientRequestHandler.scala:96) at com.mendix.externalinterface.connector.RequestHandler.doProcessRequest(RequestHandler.java:40) at com.mendix.external.connector.MxRuntimeConnector$1.execute(MxRuntimeConnector.java:70) at com.mendix.external.connector.MxRuntimeConnector$1.execute(MxRuntimeConnector.java:67) at com.mendix.util.classloading.Runner.doRunUsingClassLoaderOf(Runner.java:33) at com.mendix.external.connector.MxRuntimeConnector.processRequest(MxRuntimeConnector.java:73) at com.mendix.basis.impl.MxRuntimeImpl.processRequest(MxRuntimeImpl.java:858) at com.mendix.m2ee.appcontainer.server.handler.RuntimeHandler.handle(RuntimeHandler.java:41) at org.eclipse.jetty.server.handler.HandlerList.handle(HandlerList.java:52) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116) at org.eclipse.jetty.server.Server.handle(Server.java:368) at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:489) at org.eclipse.jetty.server.AbstractHttpConnection.content(AbstractHttpConnection.java:953) at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.content(AbstractHttpConnection.java:1014) at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:861) at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:235) at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:82) at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:628) at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:52) at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608) at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:543) at java.lang.Thread.run(Thread.java:745)
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