What makes you certain that this is not a duplicate? Because this topic is exactly about the “Failed to find config” message and it also contains many hints how to solve it (mainly setup issues and similar).
@lucidlynx Could it be possible that you are posting in a wrong topic? Because you had created Build from source 21.04 , this topic you are currently posting was created by a different user.
Again the issue.
I have installed the gvm successfully. When I try to configure a task, the config dropdown is greyed out and I received the error message again when I try to save the created task.
I already tried out following commands: runuser -u _gvm -- greenbone-nvt-syn rsync -avrP rsync://feed.community.greenbone.net:/data-objects/gvmd/