A problem with installing

[zoraya]

Hello everyone,
When i try to install a tool i see this E:Type '?deb' is not known on line 1 in source list /etc/apt/sources.list
E: The list of sources could not be read.
Which is the problem??
Cheers

[RahulKumarsree]

Hi Zoraya, The error message "E:Type '?deb' is not known on line 1 in source list /etc/apt/sources.list E: The list of sources could not be read." means that there is a malformed entry in the /etc/apt/sources.list file. The first line of the file should start with the "deb" keyword, but in your case it starts with the unknown character "?". This is causing the update process to fail.