# SQLBridge Designer Null Pointer Exception

**URL:** <https://forum.inductiveautomation.com/t/sqlbridge-designer-null-pointer-exception/4883>\
**Category:** Ignition\
**Created:** [July 25, 2012, 5:29pm UTC](https://forum.inductiveautomation.com/t/sqlbridge-designer-null-pointer-exception/4883 "2012-07-25T17:29:17Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Ron](https://avatars.discourse-cdn.com/v4/letter/r/ecae2f/32.png) [@Ron](https://forum.inductiveautomation.com/u/Ron)\
**Post date:** [July 25, 2012, 5:29pm UTC](https://forum.inductiveautomation.com/t/sqlbridge-designer-null-pointer-exception/4883/1 "2012-07-25T17:29:17Z")

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When I start the designer in SQLBridge, after I select the project I want to work on I get this null pointer exception and the designer closes. My coworker can open the designer on his PC and everything works just fine. I have accessed SQLBridge and updated projects as well in the past from my PC. Any ideas?

* * *

java.lang.NullPointerException  
at com.inductiveautomation.ignition.designer.DesignerContextProxy.getTagManager(DesignerContextProxy.java:138)  
at com.inductiveautomation.ignition.designer.sqltags.opcbrowser.OPCTreeModel.(OPCTreeModel.java:27)  
at com.inductiveautomation.ignition.designer.sqltags.opcbrowser.OPCBrowserBasePanel.itemStateChanged(OPCBrowserBasePanel.java:144)  
at javax.swing.JComboBox.fireItemStateChanged(Unknown Source)  
at javax.swing.JComboBox.selectedItemChanged(Unknown Source)  
at javax.swing.JComboBox.contentsChanged(Unknown Source)  
at javax.swing.AbstractListModel.fireContentsChanged(Unknown Source)  
at javax.swing.DefaultComboBoxModel.setSelectedItem(Unknown Source)  
at com.inductiveautomation.ignition.designer.gui.AbstractProfileOptionDropdown.setSelectedItem(AbstractProfileOptionDropdown.java:82)  
at com.inductiveautomation.ignition.designer.sqltags.opcbrowser.OPCBrowserBasePanel.setProvider(OPCBrowserBasePanel.java:133)  
at com.inductiveautomation.ignition.designer.sqltags.opcbrowser.OPCBrowserPanel.lazyInit(OPCBrowserPanel.java:89)  
at com.inductiveautomation.ignition.designer.sqltags.opcbrowser.OPCBrowserPanel$1.dockableFrameShown(OPCBrowserPanel.java:81)  
at com.jidesoft.docking.DockableFrame.fireDockableFrameEvent(Unknown Source)  
at com.jidesoft.docking.DefaultDockingManager.m(Unknown Source)  
at com.jidesoft.docking.DefaultDockingManager.s(Unknown Source)  
at com.jidesoft.docking.DefaultDockingManager.h(Unknown Source)  
at com.jidesoft.docking.DefaultDockingManager.resetToDefault(Unknown Source)  
at com.jidesoft.swing.LayoutPersistenceManager.resetToDefault(Unknown Source)  
at com.jidesoft.swing.AbstractLayoutPersistence.loadLayoutDataFrom(Unknown Source)  
at com.inductiveautomation.ignition.designer.WorkspaceManager.install(WorkspaceManager.java:200)  
at com.inductiveautomation.ignition.designer.WorkspaceManager.setSelected(WorkspaceManager.java:129)  
at com.inductiveautomation.ignition.designer.WorkspaceManager.access$000(WorkspaceManager.java:30)  
at com.inductiveautomation.ignition.designer.WorkspaceManager$1.run(WorkspaceManager.java:104)  
at java.awt.event.InvocationEvent.dispatch(Unknown Source)  
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)  
at java.awt.EventQueue.access$000(Unknown Source)  
at java.awt.EventQueue$1.run(Unknown Source)  
at java.awt.EventQueue$1.run(Unknown Source)  
at java.security.AccessController.doPrivileged(Native Method)  
at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown Source)  
at java.awt.EventQueue.dispatchEvent(Unknown Source)  
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)  
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)  
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)  
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)  
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)  
at java.awt.EventDispatchThread.run(Unknown Source)

Ignition v7.4.3 (b995)  
Java: Sun Microsystems Inc. 1.6.0\_26

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<div class="post-metadata">

**Author:** ![Colby.Clegg](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/colby.clegg/32/3282_2.png) [@Colby.Clegg](https://forum.inductiveautomation.com/u/Colby.Clegg)\
**Post date:** [July 25, 2012, 8:27pm UTC](https://forum.inductiveautomation.com/t/sqlbridge-designer-null-pointer-exception/4883/2 "2012-07-25T20:27:01Z")

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Hi,

This appears to be an issue with loading the designer when only the sql bridge module is present (that is, no vision module). If you install the vision module, even as a demo, it should get around it. It will, however, be fixed in 7.4.4-beta2, which we’ll get up soon.

Regards,