E: Type 'Executing:' is not known on line 1 in source list /etc/apt/sources.list.d/mono-xamarin.list

Support & Help Requests
1

I’m trying to install Lutris.
When I try to type sudo apt-get update
I got this error: E: Type 'Executing:' is not known on line 1 in source list /etc/apt/sources.list.d/mono-xamarin.list
E: The list of sources could not be read.
So, what I do? How I fix this? Ubuntu is reporting error every some minutes and I sending reports…

2

This site is for the co-ordination of the Ubuntu project, and not support.

For Ubuntu Support options, you will find many listed https://community.ubuntu.com/t/finding-help/712 though you’re already aware of at least one.

Please avoid cross-posting; I’ve already seen and offered advice on another appropriate site. Your question does not belong here.