E: Unable to locate package clang-7 E: Unable to locate package clang++-7 E: Couldn't find any package by regex 'clang++-7'

[marsggbo]

My VM is Debian system, and when I try to install clang-7 and clang++-7, it alerts as follows:

test@tputest:~$ sudo apt-get -y install clang-7 clang++-7
Reading package lists... Done
Building dependency tree       
Reading state information... Done
E: Unable to locate package clang-7
E: Unable to locate package clang++-7
E: Couldn't find any package by regex 'clang++-7'

How to solve this problem? Thanks!

[dlibenzi]

Which version of Debian?
Did you try an apt-get-update + apt-get-upgrade?

[marsggbo]

@dlibenzi thanks for your reply.

The Debian version is:

And I also have tried update, but it seems not work.

[dlibenzi]

Do you have this line in your /etc/apt/sources.conf?

deb http://deb.debian.org/debian/ testing main

[marsggbo]

Do you have this line in your /etc/apt/sources.conf?

deb http://deb.debian.org/debian/ testing main

@dlibenzi Thanks so much. It works. Wanna to cry hhhh.

[dlibenzi]

We have to update our README, as clang-7 is not on Debian Stretch.

[albanie]

@dlibenzi what is currently the recommended approach for Stretch?

[dlibenzi]

Add the following line to /etc/apt/sources.conf:

deb http://deb.debian.org/debian/ testing main

Then run apt-get update and install clang-7 like the REAME suggests.

[albanie]

Thanks! This worked (except that the modified file was /etc/apt/sources.list, rather than /etc/apt/sources.conf). Just in case it's useful for others experimenting on a fresh gcloud VM, run apt-get update after changing the .list file (but not apt-get upgrade, which in my case introduced conflicts with the google cloud libraries).

[dlibenzi]

Thanks! Will update the README.