# Unable to drop Kepware \_System tags in Designer

**URL:** <https://forum.inductiveautomation.com/t/unable-to-drop-kepware--system-tags-in-designer/9869>\
**Category:** Ignition\
**Created:** [April 2, 2015, 12:29pm UTC](https://forum.inductiveautomation.com/t/unable-to-drop-kepware--system-tags-in-designer/9869 "2015-04-02T12:29:57Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![cmisztur](https://avatars.discourse-cdn.com/v4/letter/c/53a042/32.png) [@cmisztur](https://forum.inductiveautomation.com/u/cmisztur)\
**Post date:** [April 2, 2015, 12:29pm UTC](https://forum.inductiveautomation.com/t/unable-to-drop-kepware--system-tags-in-designer/9869/1 "2015-04-02T12:29:57Z")

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The web quick client is able to read all Kepware/\_System tags, however in the designer when I try to drop a \_System tag, for example \_System/\_ActiveTagCount, I get a java.lang.NullPointerException.

stack

[code]java.lang.NullPointerException  
at java.lang.String.startsWith(Unknown Source)  
at java.lang.String.startsWith(Unknown Source)  
at com.inductiveautomation.factorypmi.designer.workspace.DropHandler.createPath(DropHandler.java:822)  
at com.inductiveautomation.factorypmi.designer.workspace.DropHandler.handleOPCDropped(DropHandler.java:767)  
at com.inductiveautomation.factorypmi.designer.workspace.DropHandler.handleDrop(DropHandler.java:166)  
at com.inductiveautomation.factorypmi.designer.workspace.WindowWorkspace.handleDrop(WindowWorkspace.java:739)  
at com.inductiveautomation.ignition.designer.designable.InteractionLayer$DropHandler.drop(InteractionLayer.java:469)  
at java.awt.dnd.DropTarget.drop(Unknown Source)  
at sun.awt.dnd.SunDropTargetContextPeer.processDropMessage(Unknown Source)  
at sun.awt.dnd.SunDropTargetContextPeer$EventDispatcher.dispatchDropEvent(Unknown Source)  
at sun.awt.dnd.SunDropTargetContextPeer$EventDispatcher.dispatchEvent(Unknown Source)  
at sun.awt.dnd.SunDropTargetEvent.dispatch(Unknown Source)  
at java.awt.Component.dispatchEventImpl(Unknown Source)  
at java.awt.Container.dispatchEventImpl(Unknown Source)  
at java.awt.Component.dispatchEvent(Unknown Source)  
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)  
at java.awt.LightweightDispatcher.processDropTargetEvent(Unknown Source)  
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)  
at java.awt.Container.dispatchEventImpl(Unknown Source)  
at java.awt.Window.dispatchEventImpl(Unknown Source)  
at java.awt.Component.dispatchEvent(Unknown Source)  
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)  
at java.awt.EventQueue.access$500(Unknown Source)  
at java.awt.EventQueue$3.run(Unknown Source)  
at java.awt.EventQueue$3.run(Unknown Source)  
at java.security.AccessController.doPrivileged(Native Method)  
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)  
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)  
at java.awt.EventQueue$4.run(Unknown Source)  
at java.awt.EventQueue$4.run(Unknown Source)  
at java.security.AccessController.doPrivileged(Native Method)  
at java.security.ProtectionDomain$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 v7.7.4 (b2015033012)  
Java: Oracle Corporation 1.8.0\_40  
[/code]

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<div class="post-metadata">

**Author:** ![cmisztur](https://avatars.discourse-cdn.com/v4/letter/c/53a042/32.png) [@cmisztur](https://forum.inductiveautomation.com/u/cmisztur)\
**Post date:** [April 2, 2015, 3:36pm UTC](https://forum.inductiveautomation.com/t/unable-to-drop-kepware--system-tags-in-designer/9869/2 "2015-04-02T15:36:56Z")

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My bad, I was dropping an OPC tag onto the canvas instead of into the Tag Browser. I was expecting a label element to be dropped onto the canvas…