CUBA studio: The given component is not a child of this layout


javax.servlet.ServletException: com.vaadin.server.ServiceException: java.lang.IllegalArgumentException: The given component is not a child of this layout	at com.vaadin.server.VaadinServlet.service(VaadinServlet.java:386)	at com.haulmont.studio.ui.app.aL.service(SourceFile:90)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:812)	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:587)	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:577)	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:223)	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127)	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515)	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061)	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)	at org.eclipse.jetty.server.Server.handle(Server.java:499)	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:311)	at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:258)	at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:544)	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)	at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)	at java.lang.Thread.run(Thread.java:745)Caused by: com.vaadin.server.ServiceException: java.lang.IllegalArgumentException: The given component is not a child of this layout	at com.vaadin.server.VaadinService.handleExceptionDuringRequest(VaadinService.java:1474)	at com.vaadin.server.VaadinService.handleRequest(VaadinService.java:1434)	at com.vaadin.server.VaadinServlet.service(VaadinServlet.java:384)	... 20 moreCaused by: java.lang.IllegalArgumentException: The given component is not a child of this layout	at com.vaadin.ui.AbstractOrderedLayout.getComponentAlignment(AbstractOrderedLayout.java:278)	at com.haulmont.studio.ui.sd.layout.gui.impl.ScrollBoxPanel.getComponentAlignment(SourceFile:115)	at com.haulmont.studio.ui.sd.layout.LayoutEditor.paintContent(SourceFile:175)	at com.vaadin.server.LegacyPaint.paint(LegacyPaint.java:65)	at com.vaadin.server.communication.LegacyUidlWriter.write(LegacyUidlWriter.java:82)	at com.vaadin.server.communication.UidlWriter.write(UidlWriter.java:143)	at com.vaadin.server.communication.UIInitHandler.getInitialUidl(UIInitHandler.java:293)	at com.vaadin.server.communication.UIInitHandler.synchronizedHandleRequest(UIInitHandler.java:80)	at com.vaadin.server.SynchronizedRequestHandler.handleRequest(SynchronizedRequestHandler.java:41)	at com.vaadin.server.VaadinService.handleRequest(VaadinService.java:1422)	... 21 more
javax.servlet.ServletException: com.vaadin.server.ServiceException: java.lang.IllegalArgumentException: The given component is not a child of this layout	at com.vaadin.server.VaadinServlet.service(VaadinServlet.java:386)	at com.haulmont.studio.ui.app.aL.service(SourceFile:90)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:812)	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:587)	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:577)	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:223)	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127)	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515)	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061)	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)	at org.eclipse.jetty.server.Server.handle(Server.java:499)	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:311)	at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:258)	at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:544)	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)	at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)	at java.lang.Thread.run(Thread.java:745)Caused by: com.vaadin.server.ServiceException: java.lang.IllegalArgumentException: The given component is not a child of this layout	at com.vaadin.server.VaadinService.handleExceptionDuringRequest(VaadinService.java:1474)	at com.vaadin.server.VaadinService.handleRequest(VaadinService.java:1434)	at com.vaadin.server.VaadinServlet.service(VaadinServlet.java:384)	... 20 moreCaused by: java.lang.IllegalArgumentException: The given component is not a child of this layout	at com.vaadin.ui.AbstractOrderedLayout.getComponentAlignment(AbstractOrderedLayout.java:278)	at com.haulmont.studio.ui.sd.layout.gui.impl.ScrollBoxPanel.getComponentAlignment(SourceFile:115)	at com.haulmont.studio.ui.sd.layout.LayoutEditor.paintContent(SourceFile:175)	at com.vaadin.server.LegacyPaint.paint(LegacyPaint.java:65)	at com.vaadin.server.communication.LegacyUidlWriter.write(LegacyUidlWriter.java:82)	at com.vaadin.server.communication.UidlWriter.write(UidlWriter.java:143)	at com.vaadin.server.communication.UIInitHandler.getInitialUidl(UIInitHandler.java:293)	at com.vaadin.server.communication.UIInitHandler.synchronizedHandleRequest(UIInitHandler.java:80)	at com.vaadin.server.SynchronizedRequestHandler.handleRequest(SynchronizedRequestHandler.java:41)	at com.vaadin.server.VaadinService.handleRequest(VaadinService.java:1422)	... 21 more
com.vaadin.server.ServiceException: java.lang.IllegalArgumentException: The given component is not a child of this layout	at com.vaadin.server.VaadinService.handleExceptionDuringRequest(VaadinService.java:1474)	at com.vaadin.server.VaadinService.handleRequest(VaadinService.java:1434)	at com.vaadin.server.VaadinServlet.service(VaadinServlet.java:384)	at com.haulmont.studio.ui.app.aL.service(SourceFile:90)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:812)	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:587)	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:577)	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:223)	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127)	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515)	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061)	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)	at org.eclipse.jetty.server.Server.handle(Server.java:499)	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:311)	at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:258)	at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:544)	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)	at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)	at java.lang.Thread.run(Thread.java:745)Caused by: java.lang.IllegalArgumentException: The given component is not a child of this layout	at com.vaadin.ui.AbstractOrderedLayout.getComponentAlignment(AbstractOrderedLayout.java:278)	at com.haulmont.studio.ui.sd.layout.gui.impl.ScrollBoxPanel.getComponentAlignment(SourceFile:115)	at com.haulmont.studio.ui.sd.layout.LayoutEditor.paintContent(SourceFile:175)	at com.vaadin.server.LegacyPaint.paint(LegacyPaint.java:65)	at com.vaadin.server.communication.LegacyUidlWriter.write(LegacyUidlWriter.java:82)	at com.vaadin.server.communication.UidlWriter.write(UidlWriter.java:143)	at com.vaadin.server.communication.UIInitHandler.getInitialUidl(UIInitHandler.java:293)	at com.vaadin.server.communication.UIInitHandler.synchronizedHandleRequest(UIInitHandler.java:80)	at com.vaadin.server.SynchronizedRequestHandler.handleRequest(SynchronizedRequestHandler.java:41)	at com.vaadin.server.VaadinService.handleRequest(VaadinService.java:1422)	... 21 more
com.vaadin.server.ServiceException: java.lang.IllegalArgumentException: The given component is not a child of this layout	at com.vaadin.server.VaadinService.handleExceptionDuringRequest(VaadinService.java:1474)	at com.vaadin.server.VaadinService.handleRequest(VaadinService.java:1434)	at com.vaadin.server.VaadinServlet.service(VaadinServlet.java:384)	at com.haulmont.studio.ui.app.aL.service(SourceFile:90)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:812)	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:587)	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:577)	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:223)	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127)	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515)	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061)	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)	at org.eclipse.jetty.server.Server.handle(Server.java:499)	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:311)	at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:258)	at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:544)	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)	at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)	at java.lang.Thread.run(Thread.java:745)Caused by: java.lang.IllegalArgumentException: The given component is not a child of this layout	at com.vaadin.ui.AbstractOrderedLayout.getComponentAlignment(AbstractOrderedLayout.java:278)	at com.haulmont.studio.ui.sd.layout.gui.impl.ScrollBoxPanel.getComponentAlignment(SourceFile:115)	at com.haulmont.studio.ui.sd.layout.LayoutEditor.paintContent(SourceFile:175)	at com.vaadin.server.LegacyPaint.paint(LegacyPaint.java:65)	at com.vaadin.server.communication.LegacyUidlWriter.write(LegacyUidlWriter.java:82)	at com.vaadin.server.communication.UidlWriter.write(UidlWriter.java:143)	at com.vaadin.server.communication.UIInitHandler.getInitialUidl(UIInitHandler.java:293)	at com.vaadin.server.communication.UIInitHandler.synchronizedHandleRequest(UIInitHandler.java:80)	at com.vaadin.server.SynchronizedRequestHandler.handleRequest(SynchronizedRequestHandler.java:41)	at com.vaadin.server.VaadinService.handleRequest(VaadinService.java:1422)	... 21 more

This error occurred when I tried to delete a group table from a scrollBox which contains also a fieldGroup.
After this error, the server needs to be restarted in order to continue the development.

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Unfortunately, we can not reproduce the issue. Could you attach a descriptor(xml file) of the screen? What Platform and Studio version do you use?