Just installed Nexus 3.0.0-03, started up, followed the doc, but can't login with default admin/admin123.
The only error I can see is the login refusal message:Incorrect username or password, or no permission to use the application.
user name is admin
There is password in /nexus-data/admin.password path in your nexus host.
cat /nexus-data/admin.password
you must change your password at first login
also If you implement nexus through docker, you should use command below:
docker exec -it <container_name_or_ID> cat /nexus-data/admin.password