Git error - gpg failed to sign data

Question

I just started using git and I install git and gpg via homebrew. For some reason, I get this error when i do git commit I looked at so many other stackoverflow

Answer 1

This worked for me on ubuntu 18.04

Check your gpg key

gpg -K --keyid-format LONG

if you get a blank response ,generate a GPG key

gpg --generate-key

rerun the first command, you should get an output as:

sec   rsa3072/95A854E0593B3214 2019-05-06 [SC] [expires: 2021-05-05]
      AF2F7514568DC26B0EB97B9595A854E0593B74D8
uid                 [ultimate] yourname
ssb   rsa3072/EFD326E6C611117C 2019-05-06 [E] [expires: 2021-05-05]

set git singing key

git config --global user.singingkey 95A854E0593B3214

then you are good to go! (--global is optional)

Alternatively if you dont mind signing with your ssh key

git config commit.gpgsign false

note that this is not recommended due to a security issue according to this question here and here