Generate Command Not Working?

[pbtura]

I'm trying to build the sample project but the instructions are a bit unclear. According to the readme, the maven command is

mvn java2typescript:generate

but I keep getting the error

No plugin found for prefix 'java2typescript' in the current project

I also tried changing it to 'com.github.raphaeljolivet.java2typescript' and 'java2typescript-maven-plugin' with similar results. What am I doing wrong?