Trying to build a DLC

Just testing DLC feature,
so I created a simple plugin for DLC, with only a default map has a cube in it, and created a new custom project launcher profile with “Build DLC” checked,
but it just won’t build successfully, the error message says, “Program Main: ERROR: AutomationTool terminated with exception: System Exception: Couldn’t update resource”,
and here is the log file if anyone could help

Same issue here. Need help

I have just opened a topic on the answerhub about this cause I’m facing the same issue. https://answers.unrealengine.com/questions/573960/dlc-support-still-not-working.html

It seems that it’s a bug. A ticket has been opened here Unreal Engine Issues and Bug Tracker (UE-42880)
Hope we will have infos about it soon !