Ubuntu
synaptic package

malformed line 4, list sources can't be read

Asked by Summer Rain

I'm trying to install steam and after I input

$ echo 'deb http://httpredir.debian.org/debian/ jessie main contrib non-free' | sudo tee -a /etc/apt/sources.list
deb http://httpredir.debian.org/debian/ jessie main contrib non-free
$ sudo dpkg --add-architecture i386
$ sudo apt update
E: Malformed line 4 in source list /etc/apt/sources.list (type)
E: Malformed entry 1 in list file /etc/apt/sources.list.d/rethinkdb.list (Component)
E: The list of sources could not be read.

what am i doing wrong? im completely new to this. is there another way?

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actionparsnip (andrew-woodhead666) said : 		#1

What is the output of:

cat -n /etc/apt/sources.list.d | head

Also please give the output of:

cat -n /etc/apt/sources.list.d/rethinkdb.list | head

Please indicate which output is from which file

Thanks

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actionparsnip (andrew-woodhead666) said : 		#2

Also, mixing Debian sources with Ubuntu ones will make a big mess. The package dependencies are different and you will not be able to install software due to broken packages.

What are you trying to achieve?

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Launchpad Janitor (janitor) said : 		#3

This question was expired because it remained in the 'Needs information' state without activity for the last 15 days.