Need help to run examples in the JavaSim simulation package. https://github.com/nmcl/JavaSim The example Main.java is available at: examples/src/main/java/org/javasim/examples/basic Screenshot is attached of the error Note that I also performed in Eclipse: Right click on the project folder -> Properties Choose ‘Java Build Path’ Click on ‘Sources’ tab on top Click on ‘Add Folder’ on the right panel Selected folder examples