Tried to do sudo apt-get update, get this response every time I run it:
Get:1 http://repo.radeon.com/rocm/apt/debian xenial InRelease [1814 B]Get:2 http://security.ubuntu.com/ubuntu bionic-security InRelease [88.7 kB]Err:1 http://repo.radeon.com/rocm/apt/debian xenial InRelease Couldn't create temporary file /tmp/apt.conf.RpjjUo for passing config to apt-keyErr:2 http://security.ubuntu.com/ubuntu bionic-security InRelease Couldn't create temporary file /tmp/apt.conf.IvhgJr for passing config to apt-keyGet:4 http://archive.ubuntu.com/ubuntu bionic-updates InRelease [88.7 kB]Err:4 http://archive.ubuntu.com/ubuntu bionic-updates InRelease Couldn't create temporary file /tmp/apt.conf.F98B6M for passing config to apt-keyGet:5 http://archive.ubuntu.com/ubuntu bionic-backports InRelease [74.6 kB]Err:5 http://archive.ubuntu.com/ubuntu bionic-backports InRelease Couldn't create temporary file /tmp/apt.conf.WWtE1d for passing config to apt-keyGet:3 http://archive.ubuntu.com/ubuntu bionic InRelease [242 kB]Err:3 http://archive.ubuntu.com/ubuntu bionic InRelease Couldn't create temporary file /tmp/apt.conf.TP8dgO for passing config to apt-keyReading package lists... DoneW: GPG error: http://repo.radeon.com/rocm/apt/debian xenial InRelease: Couldn't create temporary file /tmp/apt.conf.RpjjUo for passing config to apt-keyE: The repository 'http://repo.radeon.com/rocm/apt/debian xenial InRelease' is not signed.N: Updating from such a repository can't be done securely, and is therefore disabled by default.N: See apt-secure(8) manpage for repository creation and user configuration details.W: GPG error: http://security.ubuntu.com/ubuntu bionic-security InRelease: Couldn't create temporary file /tmp/apt.conf.IvhgJr for passing config to apt-keyE: The repository 'http://security.ubuntu.com/ubuntu bionic-security InRelease' is not signed.N: Updating from such a repository can't be done securely, and is therefore disabled by default.N: See apt-secure(8) manpage for repository creation and user configuration details.W: GPG error: http://archive.ubuntu.com/ubuntu bionic-updates InRelease: Couldn't create temporary file /tmp/apt.conf.F98B6M for passing config to apt-keyE: The repository 'http://archive.ubuntu.com/ubuntu bionic-updates InRelease' is not signed.N: Updating from such a repository can't be done securely, and is therefore disabled by default.N: See apt-secure(8) manpage for repository creation and user configuration details.W: GPG error: http://archive.ubuntu.com/ubuntu bionic-backports InRelease: Couldn't create temporary file /tmp/apt.conf.WWtE1d for passing config to apt-keyE: The repository 'http://archive.ubuntu.com/ubuntu bionic-backports InRelease' is not signed.N: Updating from such a repository can't be done securely, and is therefore disabled by default.N: See apt-secure(8) manpage for repository creation and user configuration details.W: GPG error: http://archive.ubuntu.com/ubuntu bionic InRelease: Couldn't create temporary file /tmp/apt.conf.TP8dgO for passing config to apt-keyE: The repository 'http://archive.ubuntu.com/ubuntu bionic InRelease' is not signed.N: Updating from such a repository can't be done securely, and is therefore disabled by default.N: See apt-secure(8) manpage for repository creation and user configuration details.Tried sudo apt-get clean, nothing happened. sudo apt-get upgrade states that there is nothing that needs to be upgraded. sudo apt-get check doesn't find anything either.
Using Ubuntu on Windows 10.