mandatory property {http://www.ametys.org/jcr/repository/1.0}newrepository does not exist

2020-08-10 12:06:58,358 ERROR [org.ametys.runtime.servlet.RuntimeServlet] (main Error while loading Ametys. Entering in error mode.
org.ametys.plugins.repository.AmetysRepositoryException: Unable to save changes
at org.ametys.plugins.repository.jcr.SimpleAmetysObject.saveChanges(SimpleAmetysObject.java:208)
at org.ametys.plugins.repository.migration.jcr.data.JcrDataVersionStorage._createComponentObject(JcrDataVersionStorage.java:246)
at org.ametys.plugins.repository.migration.jcr.data.JcrDataVersionStorage.lambda$_getComponentObject$2(JcrDataVersionStorage.java:218)
at java.base/java.util.Optional.orElseGet(Optional.java:369)
at org.ametys.plugins.repository.migration.jcr.data.JcrDataVersionStorage._getComponentObject(JcrDataVersionStorage.java:218)
at org.ametys.plugins.repository.migration.jcr.data.JcrDataVersionStorage.addVersion(JcrDataVersionStorage.java:157)
at org.ametys.core.migration.handler.AbstractVersionHandler.addVersion(AbstractVersionHandler.java:92)
at org.ametys.core.migration.MigrationExtensionPoint._upgradeVersion(MigrationExtensionPoint.java:279)
at org.ametys.core.migration.MigrationExtensionPoint._applyInitializationActions(MigrationExtensionPoint.java:224)
at org.ametys.core.migration.MigrationExtensionPoint.doMigration(MigrationExtensionPoint.java:155){{}}