Eclipse java debugging: source not found

Question

While debugging a java app in eclipse I receive a \"Source not found\" error in two cases:

• Stepping in to a file in a different project which

Answer 1

In eclipse photon try to turn off "Window->Preferences->Java->Debug->Use advanced source lookup"

Edit: There is a related bug in this version of eclipse which leads to a "source not found" message while debugging Java applications. See bug report bugs.eclipse.org/bugs/show_bug.cgi?id=537699 for more details