Hello, Now everything works perfectly when compiling with Maven, but now I'm trying to compile with IntelliJ. So I import the Maven project and then hit Build Project. IntelliJ gives me an error in SelectNearestCentroidFunction, that it cannot find slf4j in the import import org.slf4j.LoggerFactory I'm not sure where this dependency is specified, but maybe it's coming from Spark. I'm also not sure why a Maven build finds it but IntelliJ doesn't.
I'm using IntelliJ 2021.2, with Java 11. I tried setting IntelliJ to use both the bundled Maven and a newer one on my system, but neither worked. I tried rebuilding the project, reimporting the Maven project several times, I tried "invalidate cache and restart" several times. In other files, org.apache.logging.log4j.LogManager is used for logging instead. Could we change SelectNearestCentroidFunction to also use this one? I tried it on my computer, and then the IntelliJ build works. Should I open a pull request with it? https://github.com/ggevay/incubator-wayang/commit/d6eb3cea47bf8bf95d75ca8d896237cf49c6f3a5 Best, Gábor
