deploying CUSTOM FUNCTION PLUGIN : Error Code: APNX-1-4104-000

Question

Hi All, 
 I am deploying CUSTOM FUNCTION PLUGIN in Appian server. First time it got deployed well, next time when I added another function in same plugin jar and tried to deploy it was showing below error 
 Error Code: APNX-1-4104-000 Error Description: The following function(s) are already registered in the system 
 I incremented version number in appian-plugin.xml file and redeployed it but still error persists. I also verified if the function is being referred by any another rule,but this is not the case. 
 Can anyone help to solve the issue? 
 Thanks! Mayur Mondhe

aloks0189 · Accepted Answer

Hi mayurm168 as per your description you can follow the below mention steps to resolve this issue: 
 1. Open appian-plugin.xml file of your plugin 
 2. Rename the function key. e.g: 
 <function key=" myKey " class="com.demo.MyClass" /> 
 
 Export the Jar file and deploy. 
 NOTE: I assume, the exported jar file folder & their content structure is as per mentioned by Appian in their documentation. 
 
 Hope this will help you!

ravindarg0001 · Answer

Hi Mayur,

You might be given multiple keys in appian-plugin.xml 
Please Make sure you have given only one unique key for your plug-in class. 
Make sure you have followed structure is as per Appian documentation.

Thanks, 
Ravindar G

vishnuv · Answer

HI, 
It might be the case where few old instances still referring to old version. Try removing all test processes that you don't need anymore and check. 
 
Thanks.