Fix Maven (Java) Build Errors

Am currently trying to build a Maven project, however I am having issues with child projects not being able to find parent projects, take a look at the attached screenshot which shows what happens when the <parent></parent> node is omitted from the child project's POM and what happens when its present. This is a quick job for someone with extensive Java/Maven/Eclipse expertise. This can quickly turn into a long-term project for the right candidate, so the job is to use TeamViewer to build said project on my PC, considering its the environment I will be using to further the development of the game.