Can't startup the app runner home

[chancein007]

After downloading the source code and had tried to startup the app runner home, it hints the below error message. It seems that the Maven runner doesn't work.
Could you kindly us on how to configure the Maven and Java provider?

com.danielflower.apprunner.runners.UnsupportedProjectTypeException: No app runner found for app-runner-home
at com.danielflower.apprunner.runners.AppRunnerFactoryProvider.runnerFor(AppRunnerFactoryProvider.java:54)
at com.danielflower.apprunner.AppEstate.addApp(AppEstate.java:63)
at com.danielflower.apprunner.App.start(App.java:71)
at com.danielflower.apprunner.App.main(App.java:191)
at com.danielflower.apprunner.RunLocal.main(RunLocal.java:10)

[danielflower]

AppRunner just uses whatever tools are on your path unless specifically configured. So do you have mvn on the path? Maven may need M2_HOME env var set too.