After upgrading bitbucket from version 5.4 to version v6.1.2 it's not possible to activate any previous installed add-on.
e.g.
Unable to create application context for [com.atlassian.bitbucket.server.bitbucket-pr-auto-unapprove], unsatisfied dependencies: none
2019-04-01 09:37:56,625 ERROR [ThreadPoolAsyncTaskExecutor::Thread 60] c.a.plugin.osgi.factory.OsgiPlugin Unable to start the plugin container for plugin 'com.atlassian.stash.plugin.stash-auto-unapprove-plugin'
org.springframework.beans.factory.BeanDefinitionStoreException: Unexpected exception parsing XML document from URL [bundle://137.0:0/META-INF/spring/atlassian-plugins-component-imports.xml]; nested exception is java.lang.IllegalStateException: The bundle is uninstalled.
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:419)
at org.eclipse.gemini.blueprint.context.support.OsgiBundleXmlApplicationContext.loadBeanDefinitions(OsgiBundleXmlApplicationContext.java:171)
at org.eclipse.gemini.blueprint.context.support.OsgiBundleXmlApplicationContext.loadBeanDefinitions(OsgiBundleXmlApplicationContext.java:141)
at org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:133)
at org.springframework.context.support.AbstractApplicationContext.obtainFreshBeanFactory(AbstractApplicationContext.java:622)
at org.eclipse.gemini.blueprint.context.support.AbstractDelegatedExecutionApplicationContext.access$800(AbstractDelegatedExecutionApplicationContext.java:57)
at org.eclipse.gemini.blueprint.context.support.AbstractDelegatedExecutionApplicationContext$3.run(AbstractDelegatedExecutionApplicationContext.java:239)
at org.eclipse.gemini.blueprint.util.internal.PrivilegedUtils.executeWithCustomTCCL(PrivilegedUtils.java:85)
at org.eclipse.gemini.blueprint.context.support.AbstractDelegatedExecutionApplicationContext.startRefresh(AbstractDelegatedExecutionApplicationContext.java:217)
at org.eclipse.gemini.blueprint.extender.internal.dependencies.startup.DependencyWaiterApplicationContextExecutor.stageOne(DependencyWaiterApplicationContextExecutor.java:224)
at org.eclipse.gemini.blueprint.extender.internal.dependencies.startup.DependencyWaiterApplicationContextExecutor.refresh(DependencyWaiterApplicationContextExecutor.java:177)
at org.eclipse.gemini.blueprint.context.support.AbstractDelegatedExecutionApplicationContext.refresh(AbstractDelegatedExecutionApplicationContext.java:154)
at org.eclipse.gemini.blueprint.extender.internal.activator.LifecycleManager$1.run(LifecycleManager.java:213)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.lang.Thread.run(Unknown Source)
... 6 frames trimmed
Caused by: java.lang.IllegalStateException: The bundle is uninstalled.
at org.apache.felix.framework.Felix.getBundleResources(Felix.java:1706)
at org.eclipse.gemini.blueprint.util.BundleDelegatingClassLoader.getResources(BundleDelegatingClassLoader.java:186)
at org.springframework.core.io.support.PropertiesLoaderUtils.loadAllProperties(PropertiesLoaderUtils.java:178)
at org.eclipse.gemini.blueprint.extender.internal.support.NamespacePlugins$Plugin.resolve(NamespacePlugins.java:77)
at org.eclipse.gemini.blueprint.extender.internal.support.NamespacePlugins$5.operate(NamespacePlugins.java:209)
at org.eclipse.gemini.blueprint.extender.internal.support.NamespacePlugins$5.operate(NamespacePlugins.java:205)
at org.eclipse.gemini.blueprint.extender.internal.support.LazyBundleRegistry.apply(LazyBundleRegistry.java:159)
at org.eclipse.gemini.blueprint.extender.internal.support.NamespacePlugins.doResolve(NamespacePlugins.java:205)
at org.eclipse.gemini.blueprint.extender.internal.support.NamespacePlugins.resolve(NamespacePlugins.java:169)
at org.eclipse.gemini.blueprint.context.support.TrackingUtil$OsgiServiceHandler.invoke(TrackingUtil.java:106)
at org.eclipse.gemini.blueprint.context.support.DelegatedNamespaceHandlerResolver.resolve(DelegatedNamespaceHandlerResolver.java:55)
... 15 common frames omitted
2019-04-01 09:37:56,640 ERROR [ThreadPoolAsyncTaskExecutor::Thread 60] o.e.g.b.e.i.s.ExtenderConfiguration Application context refresh failed (NonValidatingOsgiBundleXmlApplicationContext(bundle=com.atlassian.bitbucket.server.bitbucket-pr-auto-unapprove, config=osgibundle:/META-INF/spring/*.xml))
org.springframework.beans.factory.BeanDefinitionStoreException: Unexpected exception parsing XML document from URL [bundle://137.0:0/META-INF/spring/atlassian-plugins-component-imports.xml]; nested exception is java.lang.IllegalStateException: The bundle is uninstalled.
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:419)
at org.eclipse.gemini.blueprint.context.support.OsgiBundleXmlApplicationContext.loadBeanDefinitions(OsgiBundleXmlApplicationContext.java:171)
at org.eclipse.gemini.blueprint.context.support.OsgiBundleXmlApplicationContext.loadBeanDefinitions(OsgiBundleXmlApplicationContext.java:141)
at org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:133)
at org.springframework.context.support.AbstractApplicationContext.obtainFreshBeanFactory(AbstractApplicationContext.java:622)
at org.eclipse.gemini.blueprint.context.support.AbstractDelegatedExecutionApplicationContext.access$800(AbstractDelegatedExecutionApplicationContext.java:57)
at org.eclipse.gemini.blueprint.context.support.AbstractDelegatedExecutionApplicationContext$3.run(AbstractDelegatedExecutionApplicationContext.java:239)
at org.eclipse.gemini.blueprint.util.internal.PrivilegedUtils.executeWithCustomTCCL(PrivilegedUtils.java:85)
at org.eclipse.gemini.blueprint.context.support.AbstractDelegatedExecutionApplicationContext.startRefresh(AbstractDelegatedExecutionApplicationContext.java:217)
at org.eclipse.gemini.blueprint.extender.internal.dependencies.startup.DependencyWaiterApplicationContextExecutor.stageOne(DependencyWaiterApplicationContextExecutor.java:224)
at org.eclipse.gemini.blueprint.extender.internal.dependencies.startup.DependencyWaiterApplicationContextExecutor.refresh(DependencyWaiterApplicationContextExecutor.java:177)
at org.eclipse.gemini.blueprint.context.support.AbstractDelegatedExecutionApplicationContext.refresh(AbstractDelegatedExecutionApplicationContext.java:154)
at org.eclipse.gemini.blueprint.extender.internal.activator.LifecycleManager$1.run(LifecycleManager.java:213)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.lang.Thread.run(Unknown Source)
... 6 frames trimmed
Caused by: java.lang.IllegalStateException: The bundle is uninstalled.
at org.apache.felix.framework.Felix.getBundleResources(Felix.java:1706)
at org.eclipse.gemini.blueprint.util.BundleDelegatingClassLoader.getResources(BundleDelegatingClassLoader.java:186)
at org.springframework.core.io.support.PropertiesLoaderUtils.loadAllProperties(PropertiesLoaderUtils.java:178)
at org.eclipse.gemini.blueprint.extender.internal.support.NamespacePlugins$Plugin.resolve(NamespacePlugins.java:77)
at org.eclipse.gemini.blueprint.extender.internal.support.NamespacePlugins$5.operate(NamespacePlugins.java:209)
at org.eclipse.gemini.blueprint.extender.internal.support.NamespacePlugins$5.operate(NamespacePlugins.java:205)
at org.eclipse.gemini.blueprint.extender.internal.support.LazyBundleRegistry.apply(LazyBundleRegistry.java:159)
at org.eclipse.gemini.blueprint.extender.internal.support.NamespacePlugins.doResolve(NamespacePlugins.java:205)
at org.eclipse.gemini.blueprint.extender.internal.support.NamespacePlugins.resolve(NamespacePlugins.java:169)
at org.eclipse.gemini.blueprint.context.support.TrackingUtil$OsgiServiceHandler.invoke(TrackingUtil.java:106)
at org.eclipse.gemini.blueprint.context.support.DelegatedNamespaceHandlerResolver.resolve(DelegatedNamespaceHandlerResolver.java:55)
... 15 common frames omitted