Comment 11 for bug 1569674

I get the same error when I try to edit about any property of any connection in kde5-nm-connection-editor, and also when I try to create a new connection. But every now and then, it will just work. Just managed to create this shared Wi-Fi config, for example:

[connection]
id=Nueva conexión 802-11-wireless
uuid=65d23f13-asdf-asdf-asdf-fb98asdf8701
type=wifi
autoconnect=false
permissions=user:chemtox:;
secondaries=

[wifi]
mac-address=00:00:00:00:00:00
mac-address-blacklist=
mac-address-randomization=0
mode=ap
seen-bssids=
ssid=my_shared_connection

[ipv4]
dns-search=
method=shared

[ipv6]
addr-gen-mode=stable-privacy
dns-search=
method=auto

Later, after 6-7 tries, I managed to change the auth to WPA.

So, looks like a pesky one.