Jenkins does not start on macOS 10.12 (Sierra)

Question

After upgrading my macOS to Sierra, when I start Jenkins using launchctl load I cannot connect to localhost:8080. If I call launchctl load again, I see response \"service alread

Answer 1

In my case, the install on Catalina (OSX 10.15) somehow didn't even create the /var/log/jenkins file. I had to

sudo mkdir /var/log/jenkins

and then take ownership and then Jenkins started normally. Just did the normal OSX installer so not sure why the install was corrupt.