An error occurred while initializing the Runtime: Unsupported pre-analysis migration: version 4.1.0 cannot be downgraded to version 4.0.0.

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Hi guys, I’m facing these errors when im trying to run my application An error occurred while initializing the Runtime: Unsupported pre-analysis migration: version '4.1.0' cannot be downgraded to version '4.0.0'. com.mendix.m2ee.api.AdminException: An error occurred while initializing the Runtime: Unsupported pre-analysis migration: version '4.1.0' cannot be downgraded to version '4.0.0'. at com.mendix.basis.impl.MxRuntimeImplBase.start(MxRuntimeImplBase.java:350) Caused by: com.mendix.connectionbus.ConnectionBusRuntimeException: Unsupported pre-analysis migration: version '4.1.0' cannot be downgraded to version '4.0.0'. at com.mendix.connectionbus.modelsynchronization.migration.PreanalysisPhaseMigrationHelper.preventVersionDowngrade(PreanalysisPhaseMigrationHelper.scala:42) at com.mendix.connectionbus.modelsynchronization.analysis.SystemTableUpgradeCommandGenerator$.generate(SystemTableUpgradeCommandGenerator.scala:26) at com.mendix.connectionbus.modelsynchronization.analysis.SystemTableUpgradeCommandGenerator.generate(SystemTableUpgradeCommandGenerator.scala) at com.mendix.connectionbus.modelsynchronization.analysis.DatabaseAnalyzer.analyzeAndFillMigrationCommands(DatabaseAnalyzer.java:77) at com.mendix.connectionbus.modelsynchronization.ModelSynchronizationUpdater.analyzeAndFillMigrationCommands(ModelSynchronizationUpdater.java:153) at com.mendix.connectionbus.modelsynchronization.ModelSynchronizationUpdater.analyzeAndRender(ModelSynchronizationUpdater.java:102) at com.mendix.connectionbus.modelsynchronization.SynchronizationManager.analyzeMappingModel(SynchronizationManager.scala:243) at com.mendix.connectionbus.modelsynchronization.SynchronizationManager.analyzeModel(SynchronizationManager.scala:233) at com.mendix.connectionbus.modelsynchronization.SynchronizationManager.analyzeCurrentDatabase(SynchronizationManager.scala:149) at com.mendix.connectionbus.modelsynchronization.SynchronizationManager.$anonfun$stateMachine$3(SynchronizationManager.scala:82) at com.mendix.connectionbus.modelsynchronization.SimpleStateMachine$SimpleStateMachine.effect(SynchronizationManager.scala:56) at com.mendix.connectionbus.modelsynchronization.SynchronizationManager.analyzeCopying(SynchronizationManager.scala:190) at com.mendix.connectionbus.modelsynchronization.SynchronizationManager.$anonfun$stateMachine$2(SynchronizationManager.scala:81) at com.mendix.connectionbus.modelsynchronization.SimpleStateMachine$SimpleStateMachine.effect(SynchronizationManager.scala:56) at com.mendix.connectionbus.modelsynchronization.SynchronizationManager.analyzeSourceStructureForCopy(SynchronizationManager.scala:158) at com.mendix.connectionbus.modelsynchronization.SynchronizationManager.$anonfun$stateMachine$1(SynchronizationManager.scala:80) at com.mendix.connectionbus.modelsynchronization.SimpleStateMachine$SimpleStateMachine.effect(SynchronizationManager.scala:56) at com.mendix.connectionbus.modelsynchronization.SynchronizationManager.analyze(SynchronizationManager.scala:139) at com.mendix.connectionbus.ConnectionBusImpl.collectDatabaseSynchronizationInformation(ConnectionBusImpl.java:370) at com.mendix.basis.impl.MxRuntimeImplBase.initializeConnectionBusAnyway(MxRuntimeImplBase.java:436) at com.mendix.basis.impl.MxRuntimeImplBase.start(MxRuntimeImplBase.java:327) at com.mendix.m2ee.appcontainer.actions.StartAction.startRuntime(StartAction.java:48) at com.mendix.m2ee.appcontainer.actions.StartAction.execute(StartAction.java:30) at com.mendix.m2ee.appcontainer.server.handler.HttpAdminHandler.handle(HttpAdminHandler.java:129) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127) at org.eclipse.jetty.server.Server.handle(Server.java:501) at org.eclipse.jetty.server.HttpChannel.lambda$handle$1(HttpChannel.java:383) at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:556) at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:375) at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:272) at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:311) at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:103) at org.eclipse.jetty.io.ChannelEndPoint$1.run(ChannelEndPoint.java:104) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:336) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:313) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:171) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:129) at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:375) at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:806) at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:938) at java.base/java.lang.Thread.run(Thread.java:834)   An exception occurred during Runtime Shutdown. java.lang.NullPointerException: null at com.mendix.basis.impl.MxRuntimeImplBase.shutdown(MxRuntimeImplBase.java:832) at com.mendix.m2ee.appcontainer.actions.ShutdownAction.execute(ShutdownAction.java:45) at com.mendix.m2ee.appcontainer.server.handler.HttpAdminHandler.handle(HttpAdminHandler.java:129) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127) at org.eclipse.jetty.server.Server.handle(Server.java:501) at org.eclipse.jetty.server.HttpChannel.lambda$handle$1(HttpChannel.java:383) at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:556) at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:375) at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:272) at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:311) at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:103) at org.eclipse.jetty.io.ChannelEndPoint$1.run(ChannelEndPoint.java:104) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:336) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:313) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:171) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:129) at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:375) at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:806) at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:938) at java.base/java.lang.Thread.run(Thread.java:834)   Can i get some suggestions so i can over come these errors. Thanks, Giridharan M
asked
2 answers
2

we face this problem today.

I change the preanalysismigrationversionnumber of database mendixsystem$version to 4.0.0.

It workes.You can try.

 

one possible reason is using a higher version of mendix to connect to  this database.

answered
1

Hi Giridharan,

                   Actually you are trying to downgrade from Mendix versions higher to lower. Otherwise if you want to downgrade to older version , restore the database backup to older version.

Thanks

 

answered