Unknown Error at publishing time

This image is also in the attachments. I've recreated an error we have in a module we are developing. The mapping seems correct, but the system complains about an error. Has anyone seen this before?

Solution

I cant see the full action output types, but I had a similar error, when I had two mappings. If the webblock input requiers mapping and your UserToPersonStruct also requires a mapping, this may happen. You can only have one mapping. So do the usertoperson in another place, or add an action to translate the action output to webblock input 

Solution

Carlos Bragança wrote:

I cant see the full action output types, but I had a similar error, when I had two mappings. If the webblock input requiers mapping and your UserToPersonStruct also requires a mapping, this may happen. You can only have one mapping. So do the usertoperson in another place, or add an action to translate the action output to webblock input 

That was that, thank you.