I'm migrating to Activiti 6 and trying to deploy an existing .bar file using the Activiti Admin UI and get the instructive message "Could not upload this file".
May be there is a hint in the note:
" Uploading a process is only possible to an Activiti Core Engine, not to an Activiti 6 UI instance. Processes in the Activiti 6 UI should be deployed using an app that is shared with individuals or groups. "
I'm just testing with the Activiti UI and don't see anything in the user guide referring to the Activiti Core Engine.
I'm probably missing something obvious here...