Upgrade from 4.9.8 to 5.15.1: An error occurred while reading the Application Model

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When I upgrade from 4.9.8 to 5.15.1 I get the following error when trying to migrate the Java libraries: An error occurred while reading the Application Model com.mendix.m2ee.api.AdminException: An error occurred while reading the Application Model at com.mendix.core.impl.ProjectModelStoreLoader.initializeModelStore(ProjectModelStoreLoader.java:81) Caused by: com.mendix.m2ee.api.AdminException: Error locating modeler .mdp file at com.mendix.core.impl.ProjectModelStoreLoader.getModelerFileLocation(ProjectModelStoreLoader.java:100) Caused by: com.mendix.systemwideinterfaces.MendixRuntimeException: ModelerFile C:\LV Broker Portal-branchMendix5UpgradeFrom4-8-9_V5438\deployment\model\model.mdp is not a regular file at com.mendix.core.conf.ConfigValueChecker.checkFileOrDirectory(ConfigValueChecker.java:49) at com.mendix.core.conf.ConfigValueChecker.checkFile(ConfigValueChecker.java:25) at com.mendix.core.conf.ConfigurationImpl.updateConfiguration(ConfigurationImpl.java:188) at com.mendix.core.impl.ProjectModelStoreLoader.getModelerFileLocation(ProjectModelStoreLoader.java:94) at com.mendix.core.impl.ProjectModelStoreLoader.initializeModelStore(ProjectModelStoreLoader.java:74) at com.mendix.core.impl.ProjectModelStoreLoader.load(ProjectModelStoreLoader.java:55) at com.mendix.core.impl.MxRuntimeImpl.start(MxRuntimeImpl.java:290) at com.mendix.core.impl.MxRuntimeImpl.start(MxRuntimeImpl.java:251) at com.mendix.m2ee.appcontainer.actions.StartAction.startRuntime(StartAction.java:56) at com.mendix.m2ee.appcontainer.actions.StartAction.execute(StartAction.java:34) at com.mendix.m2ee.appcontainer.server.handler.HttpAdminHandler.handle(HttpAdminHandler.java:135) 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.headerComplete(AbstractHttpConnection.java:942) at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.headerComplete(AbstractHttpConnection.java:1004) at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:647) 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(Unknown Source) I was only able to reproduce this error message when running in Eclipse. The modeler just says "An error occurred while running the migration. Press 'Next' to try again".
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1 answers
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These kind of problems are almost always duplicated libraries. First delete all the libraries that are the same but a different release. If that does not help delete one library at a time untill it does work (bit tidious, but currently the only option that I know of).

Regards,

Ronald

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