LAMMPS를 어떻게 설치하나요?

LAMMPS를 어떻게 설치하나요?

lampmps 소프트웨어를 설치하려고 하는데 업데이트할 때 다음 오류가 표시됩니다.

E:The repository 'http://ppa.launchpad.net/gladky-anton/lammps/ubuntu artful Release' does not have a Release file., 
W:Updating from such a repository can't be done securely, and is therefore disabled by default., 
W:See apt-secure(8) manpage for repository creation and user configuration details., 
W:Target Sources (main/source/Sources) is configured multiple times in /etc/apt/sources.list.d/kubuntu-ci-ubuntu-stable-artful.list:2 and /etc/apt/sources.list.d/kubuntu-ci-ubuntu-stable-artful.list:3 

나는 다음을 입력했습니다:

sudo add-apt-repository ppa:gladky-anton/lammps
sudo apt-get update

하지만 다음 오류가 발생합니다.

Err:10 http://ppa.launchpad.net/gladky-anton/lammps/ubuntu artful Release      
404  Not Found
N: Updating from such a repository can't be done securely, and is therefore disabled by default 

E: The repository 'http://ppa.launchpad.net/gladky-anton/lammps/ubuntu artful 
Release' does not have a Release file.

W: Target Sources (main/source/Sources) is configured multiple times in
/etc/apt/sources.list.d/kubuntu-ci-ubuntu-stable-artful.list:2 and 
/etc/apt/sources.list.d/kubuntu-ci-ubuntu-stable-artful.list:3

관련 정보