The Class-Path manifest attribute in [path] referenced one or more files that do not exist

Please check do you have "spring-boot-devtools dependency" in pom.xml then remove it and try again

I had a similar problem after changing my logback-spring.xml file.

The application wouldn't start anymore and I could only see some INFO messages like those you described but that wasn't the actual cause of the problem.

The application was failing after that point but couldn't log any erros messages exactly because of a issue in my logback-spring.xml.

So if you don't see any other error messages, try to double check that your logging mechanism is configured correctly.