Error in extending "Campaign"

Development
1

Hi,



I’m extended “Campaign Builder” (created new “CampaignSubscriber” event listener) and added new action (call “addAction” method), on the pop-up placed “datetime” element, after submit form I had some error:

Quote:
"Internal Server Error - Unable to transform value for property path "[date]": Expected a DateTime or DateTimeInterface."

Please help with this.
2

Hi,

I’m extended “Campaign Builder” (created new “CampaignSubscriber” event listener) and added new action (call “addAction” method), on the pop-up placed “datetime” element, after submit form I had some error:

Please help with this.