I tried to install and start Obsidian again (Kubunto fresh new installed)
Before my new KUbuntu installation i used the folder brain with Obsidian with no Problems. I use the same user name.
But now i got a cant access the folder error. As you could see here: https://i.sstatic.net/oMZAc.png
therefor i read here:
How do I add a permission for write and read access and not remove the folder? and here https://askubuntu.com/a/732268/1017209
and i thought that probably helps
sudo chmod 744 -R ./brain/
hopefully gives my app-image (Obsidian) access to read and write to this folder.
but it do no. Any idea?