mvn clean install throwing an error - File has not been previously formatted. Please format file and commit before running validation

Question

After I created new files, I started getting the error "Failed to execute goal net.revelc.code.formatter:formatter-maven-plugin:2.8.1:validate File has not been previously formatted. Please format file and commit before running validation".

Any ideas why this error shows up and how to fix it?

Answer 1

Running

mvn clean validate -P format

fixed the issue.