As you noticed I am new in this forum. But reason why O am writing is a preoblem what I having during installation.
I have installed Ububtu 18 LTS. Ihave onstalled snap and after "snap install node-red" command I having fallowing error message:
(error: cannot install "node-red": Post https://api.snapcraft.io/v2/snaps/refresh: x509: certificate signed by unknown authority)
What I have done wrong to have this message?