Perl error bitbake

During bitbake -k angstrom-lxde-image command for my Colibri iMX7 I have this error with perl and the build stops.
I am using Ubuntu 16.04 and I did follow the prerequisite section already.

Is this a common error ? How can I fix it ?

Thank you !

What distro and flavour thereof are you using on your build/development machine? I assume you did follow our prerequisite section already.

Thank you for your help, I updated my post.

Strange… I followed those steps quite a few times and after another retry it worked… Thank you.

Is this a common error ?

How can I fix it ?

Did you go trough the troubleshooting section? What were the results?