argo-cd/docs/developer-guide/mac-users.md

MacOS users

Below are known issues specific to macOS

Port 5000

You may get an error listening on port 5000 on macOS:

docker: Error response from daemon: Ports are not available: exposing port TCP 0.0.0.0:5000 -> 0.0.0.0:0: listen tcp 0.0.0.0:5000: bind: address already in use.

In that case, you can disable "AirPlay Receiver" in macOS System Preferences.

Firewall dialogs

If you get firewall dialogs, you can click "Deny", since no access from outside your computer is typically desired.

Exec format error for virtualized toolchain make targets

If you get /go/src/github.com/argoproj/argo-cd/dist/mockery: cannot execute binary file: Exec format error, this typically means that you ran a virtualized make target after you ran the a local make target.
To fix this and continue with the virtualized toolchain, delete the contents of argo-cd/dist folder.
If later on you wish to run make targets of the local toolchain again, run make install-tools-local to re-populate the contents of the argo-cd/dist folder.