# \[bug-13555\]DropHandler Exception **URL:** \ **Category:** Ignition\ **Tags:** ignition80\ **Created:** [April 12, 2019, 5:44pm UTC](https://forum.inductiveautomation.com/t/bug-13555-drophandler-exception/24106 "2019-04-12T17:44:29Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![zacslade](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/zacslade/32/3587_2.png) [@zacslade](https://forum.inductiveautomation.com/u/zacslade)\ **Post date:** [April 12, 2019, 5:44pm UTC](https://forum.inductiveautomation.com/t/bug-13555-drophandler-exception/24106/1 "2019-04-12T17:44:29Z")
Hi guys, I have a pretty simple template -- just a circle that changes color based on a boolean value. The custom property for that value is called "State" and is the drop target. If I drag a bool tag onto the screen, I can select my indicator template from the dropdown list, and it works. But if I put the indicator on the screen first, and then drop a tag onto it, I get the following error: > Error during drop: class com.inductiveautomation.factorypmi.designer.beaninfo.TemplateHolderBeanInfo$TemplateTagDropHandler cannot be cast to class com.inductiveautomation.vision.api.designer.beans.TagDropHandler (com.inductiveautomation.factorypmi.designer.beaninfo.TemplateHolderBeanInfo$TemplateTagDropHandler and com.inductiveautomation.vision.api.designer.beans.TagDropHandler are in unnamed module of loader java.net.URLClassLoader @674ee5c7) Any ideas what I might be doing wrong here? Is this a bug? ---
**Author:** ![paul-griffith](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/paul-griffith/32/37249_2.png) [@paul-griffith](https://forum.inductiveautomation.com/u/paul-griffith)\ **Post date:** [April 12, 2019, 6:09pm UTC](https://forum.inductiveautomation.com/t/bug-13555-drophandler-exception/24106/2 "2019-04-12T18:09:33Z")
Bug on our end - fix is already pending and should make it into one of the next few nightlies.