https://community.qlik.com/t5/Installing-and-Upgrading/Backward-Forward-compatibility/m-p/2380155#M3518 Hi, <BR />I was wondering how easy is it to move to a lower and higher version. I am taking a backup of all projects (not entire workspace that includes .java, ..JETEmitters) to a folder separate from Talend Installation folder. Still I wonder if the backup will be useful in future should we need it. Today I tested this by downgrading to r90681-V5.1.2 from r90320-V5.2.0. After installation when I pointed to the workspace (created using 5.2.0) it gave me this error: <BR />My question is should we be aware of some know issues while migrating to either a higher or lower version ? What exactly should be backed up? <BR />=====ERROR from workspace/.metadata/.bak_0.log ============ <BR />!STACK 0 <BR />org.eclipse.emf.ecore.resource.impl.ResourceSetImpl$1DiagnosticWrappedException: org.eclipse.emf.ecore.xmi.FeatureNotFoundException: Feature 'migrationTask' not found. (platform:/resource/TESTPROJ/talend.project, 313, 162) <BR /> at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.handleDemandLoadException(ResourceSetImpl.java:315) <BR /> at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.demandLoadHelper(ResourceSetImpl.java:274) <BR /> at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.getResource(ResourceSetImpl.java:397) <BR /> at org.talend.core.repository.utils.XmiResourceManager.loadProject(XmiResourceManager.java:105) <BR />.... <BR />Caused by: org.eclipse.emf.ecore.xmi.FeatureNotFoundException: Feature 'migrationTask' not found. (platform:/resource/TESTPROJ/talend.project, 313, 162) <BR /> at org.eclipse.emf.ecore.xmi.impl.XMLHandler.reportUnknownFeature(XMLHandler.java:1991) <BR /> at org.eclipse.emf.ecore.xmi.impl.XMLHandler.handleUnknownFeature(XMLHandler.java:1955) <BR /> at org.eclipse.emf.ecore.xmi.impl.XMIHandler.handleUnknownFeature(XMIHandler.java:151) <BR />.... <BR /> ... 29 more Sat, 16 Nov 2024 12:10:30 GMT Anonymous 2024-11-16T12:10:30Z https://community.qlik.com/t5/Installing-and-Upgrading/Backward-Forward-compatibility/m-p/2380155#M3518 Hi, <BR />I was wondering how easy is it to move to a lower and higher version. I am taking a backup of all projects (not entire workspace that includes .java, ..JETEmitters) to a folder separate from Talend Installation folder. Still I wonder if the backup will be useful in future should we need it. Today I tested this by downgrading to r90681-V5.1.2 from r90320-V5.2.0. After installation when I pointed to the workspace (created using 5.2.0) it gave me this error: <BR />My question is should we be aware of some know issues while migrating to either a higher or lower version ? What exactly should be backed up? <BR />=====ERROR from workspace/.metadata/.bak_0.log ============ <BR />!STACK 0 <BR />org.eclipse.emf.ecore.resource.impl.ResourceSetImpl$1DiagnosticWrappedException: org.eclipse.emf.ecore.xmi.FeatureNotFoundException: Feature 'migrationTask' not found. (platform:/resource/TESTPROJ/talend.project, 313, 162) <BR /> at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.handleDemandLoadException(ResourceSetImpl.java:315) <BR /> at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.demandLoadHelper(ResourceSetImpl.java:274) <BR /> at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.getResource(ResourceSetImpl.java:397) <BR /> at org.talend.core.repository.utils.XmiResourceManager.loadProject(XmiResourceManager.java:105) <BR />.... <BR />Caused by: org.eclipse.emf.ecore.xmi.FeatureNotFoundException: Feature 'migrationTask' not found. (platform:/resource/TESTPROJ/talend.project, 313, 162) <BR /> at org.eclipse.emf.ecore.xmi.impl.XMLHandler.reportUnknownFeature(XMLHandler.java:1991) <BR /> at org.eclipse.emf.ecore.xmi.impl.XMLHandler.handleUnknownFeature(XMLHandler.java:1955) <BR /> at org.eclipse.emf.ecore.xmi.impl.XMIHandler.handleUnknownFeature(XMIHandler.java:151) <BR />.... <BR /> ... 29 more Sat, 16 Nov 2024 12:10:30 GMT https://community.qlik.com/t5/Installing-and-Upgrading/Backward-Forward-compatibility/m-p/2380155#M3518 Anonymous 2024-11-16T12:10:30Z https://community.qlik.com/t5/Installing-and-Upgrading/Backward-Forward-compatibility/m-p/2380156#M3519 You cannot generally downgrade. To upgrade you can just import the projects directly from your old workspace to your new workspace. I don't recommend pointing the new version at the old workspace. <BR />To backup, you should login to the project, right-click any repository item, select Export Items and export all to a zip. Fri, 05 Oct 2012 06:14:01 GMT https://community.qlik.com/t5/Installing-and-Upgrading/Backward-Forward-compatibility/m-p/2380156#M3519 alevy 2012-10-05T06:14:01Z