Signing failed -- "No secret key" even though I have it

: echo "hello" | gpg --sign-with --clearsign This is what gpg -K lists: /home/azarus/.gnupg/pubring.kbx --- sec rsa4096 2016-12-20 [SC] uid [ultimate] uid [ultimate] ssb rsa4096 2016-12-20 [E] ssb# rsa4096 2017-06-23 [SE] Ca

Signing failed -- "No secret key", even though I have the key

: echo "hello" | gpg --sign-with --clearsign This is what gpg -K lists: /home/azarus/.gnupg/pubring.kbx --- sec rsa4096 2016-12-20 [SC] uid [ultimate] uid [ultimate] ssb rsa4096 2016-12-20 [E] ssb# rsa4096 2017-06-23 [SE] Ca