We obviously hope the installation of Wacs will go smoothly but it is a pretty complex system that depends on a significant number of other packages working together with our code. This chapter aims to provide help and assistance if all doesn't go according to plan. There are two main sections - the first (the section called “Installation Troubleshooting”) covers what to do if the installation proceedure itself goes wrong; the second (the section called “General Troubleshooting Tips”) covers more general issues where the system installs but then doesn't work or where it stops working for some reason.